[cctalk] Re: Nixies..

[Henk Gooijen via cctalk]

3 feet high is a bit too large, hi, but the pictures on the website brings back 
memories.
I remember the “coffee” machine, but back then (the way I remember it), it had 
vertically
mounted an X / Y slider to generate “coffee!”/ “coffee?” 

I know Kees, a few years ago I helped him a bit moving house after his mother 
died.
Last year I gave him a Siemens T1000 telex machine (5-bit) with reader/punch.
He wanted to set up an RTTY mailbox … must ask him how that went along.
He is a busy guy, I did not know the Evoluon website!


Van: Paul Koning<mailto:paulkon...@comcast.net>
Verzonden: vrijdag 18 augustus 2023 15:14
Aan: cctalk@classiccmp.org<mailto:cctalk@classiccmp.org>
CC: Henk Gooijen<mailto:henk.gooi...@hotmail.com>
Onderwerp: Re: [cctalk] Nixies..



> On Aug 17, 2023, at 11:01 AM, Henk Gooijen via cctalk  
> wrote:
>
> Yes, I remember those “nixies”. When you entered the building it was 
> impossible to _not_ see them.
> If you walked under them, you ended up in the restaurant.
>
> The “do-things-yourself” museum is long gone, but the “UFO” saucer building 
> is still there.
> When I am in the office, I can see the building, looking out the window. My 
> work is less than 1 km away.
> I wonder if those “nixies” are still there, and if not, where they ended up …

Kees Stravers, owner of the website about the Evoluon, reports that they were 
scrapped when the museum closed in 1989.

You could of course reproduce them: they aren't actual Nixie tubes but rather a 
set of advertising sign type of neon lights, so any neon light craftsman could 
built such a thing.

paul

[cctalk] Re: Nixies..

[Henk Gooijen via cctalk]

Yes, I remember those “nixies”. When you entered the building it was impossible 
to _not_ see them.
If you walked under them, you ended up in the restaurant.

The “do-things-yourself” museum is long gone, but the “UFO” saucer building is 
still there.
When I am in the office, I can see the building, looking out the window. My 
work is less than 1 km away.
I wonder if those “nixies” are still there, and if not, where they ended up …

Van: Paul Koning via cctalk
Verzonden: donderdag 17 augustus 2023 15:26
Aan: cctalk@classiccmp.org
CC: Paul Koning
Onderwerp: [cctalk] Re: Nixies..

Neat.  Their products are amazingly expensive, though.

Depending on your definition that might actually be the second largest.  
Philips built neon displays that visually look exactly like Nixie tubes that 
were much larger.  Those are technically different: a Nixie tube uses multiple 
electrodes shaped like the shapes you want, enclosed in a single gas-filled 
enclosure.  The big Philips displays are multiple regular neon discharge tubes 
(like the ones used on advertising signs) enclosed in a transparent shell 
shaped like a tube.

These were used at the Evoluon museum in Eindhoven for the daily visitor 
counter.  They were installed in the main hall, on the railing of the first 
balcony.  I'm not sure of their size, but I would guess 3 feet or so high.

paul

> On Aug 17, 2023, at 4:39 AM, Holm Tiffe via cctalk  
> wrote:
>
>
> ...only for a look..
>
> https://www.daliborfarny.com/project/h-nixie-tube/

RE: PMI memory on an -11/93 (Was: Installing an operating system on an 11/83)

[Henk Gooijen via cctalk]

I always thought that you cannot add (PMI) memory to an 11/93.
There are two versions of the 11/93. One with 2 MB, the other
with 4 MB of memory _on board_.   And that’s it.
If you have an 11/93 CPU with 2 MB on board, the board is just
half populated with memory. I don’t think you can add memory
externally.  But I might be wrong …

Henk, PA8PDP

Van: Noel Chiappa via cctalk
Verzonden: dinsdag 22 februari 2022 18:55
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: Re: PMI memory on an -11/93 (Was: Installing an operating system on 
an 11/83)

> From: Bill Gunshannon

> Just wish I could get some PMI memory for that 93.

?? The KDJ11-E in the -11/93 comes with a minimum of 2MB on the CPU card.
That's enough for almost 16 maximum-sized processes (assuming they aren't
sharing program texts - almost double that, if they are). Does one really
need more than that for vintage retro use?

Besides, the on-board memory operates at full speed (same as cache memory on
the KDJ11-B); even if you added PMI memory, the KDJ11-E has no cache, so it
would be a _lot_ slower than the on-board memory.

Noel

PS: Can people _please_ trim messages they are replying to, so we don't all
have to scroll down past a bunch of irrelevant drek? Thank you.

RE: DEC AXV11-C analog board

[Henk Gooijen via cctalk]

Two batteries in series, using the “middle” as 0V reference.
The “+” is V+, the “-“ is V-.

Van: Douglas Taylor via cctalk
Verzonden: zondag 13 februari 2022 18:05
Aan: Jon Elson via cctalk
Onderwerp: Re: DEC AXV11-C analog board

Is it possible to construct a battery driven circuit that
will present both positive and negative voltages at the
input?  A bridge of some sort?

Doug

RE: TU56 DECtape takeup reel needed

[Henk Gooijen via cctalk]

One of my future projects is building a 60% scaled TU56 to go with the 
PiDP11/70 ...
This might be of interest on  Thingiverse: 
https://www.thingiverse.com/thing:4635976

Henk, PA8PDP

Van: Mike Katz via cctalk
Verzonden: vrijdag 17 december 2021 15:44
Aan: Jay Jaeger; General Discussion: On-Topic and 
Off-Topic Posts
Onderwerp: Re: TU56 DECtape takeup reel needed

I am also in need of emtpy reels.  I purchased a TU56 that had been
taken apart to restore and the restoration had never been finished. The
empty reels were not in the box of parts.

Has anyone tried 3D printing these?

On 12/17/2021 8:01 AM, Jay Jaeger via cctalk wrote:
> On 12/12/2021 1:08 PM, Alan Frisbie via cctalk wrote:
>> I just unpacked the rack with my TU56 DECtape drive and discovered that
>> the movers managed to break the takeup reels.  This, despite many layers
>> of foam padding, stretch film, and warning signs.  On the other hand,
>> this was the only item that suffered any damage at all.  Not too bad for
>> three moving van loads!
>>
>> Can anyone help me with an empty DECtape reel or two?
>>
>> Thanks,
>> Alan Frisbie
>
> Were they left on the drive during shipping?
>
> Anyway, I can probably find one lying around that I could spare. (Or,
> if you have a bunch of tapes, maybe sacrifice a scratch?)
>
> Location?
>
> JRJ

RE: RK11-C indicator panel inlays?

[Henk Gooijen via cctalk]

Van: David Bridgham via cctalk<mailto:cctalk@classiccmp.org>
Verzonden: maandag 6 december 2021 15:52
Aan: General Discussion: On-Topic and Off-Topic 
Posts<mailto:cctalk@classiccmp.org>
Onderwerp: Re: RK11-C indicator panel inlays?

On 12/5/21 4:43 PM, Henk Gooijen via cctalk wrote:

> I am definitely interested. Never saw the RK-11C (except once on eBay some 15 
> years ago)!
> However, I have *two* DX11 front panels with the 144 lamps & 4 ”paddle” 
> connections boards.
> I developed a 100x160 mm (Euro-card size) PCB with a PIC18F252 and 10 
> MCP23S17 ICs.
> You serially send a command to the PIC and the PIC controls the MCP23S17 
> outputs.
> Per command you control 8 lamps. On the PCB is one difficult part: a 4 
> position one-slot block
> to put the 4 paddle boards in.

Fun.  That's a way to get some more lights into your life.  I like it.


> Given you have 144 lamps panel with the RK11-C front, what would you do to 
> light up the lamps?


I think the only reason to have an RK11-C inlay is if you have an
RK11-C.  Otherwise I can't see that it makes much sense.

The one other place I might, maybe, possibly see one being used is along
with one of our QSICs or USICs.  I could add an option to drive an
RK11-C inlay if someone really thought that was what they wanted but the
RK11-F inlay that we came up with really is a better match and more
functional (which is why we came up with it) as well as supporting the
RP11 implementation that I'm sure I'll get working any day now (snort).

Dave

If this RK11-C “blinkenlight” panel would also become available in a 60% scaled 
format,
I would buy it immediately. It would be an “übercool” addition to the 
PiDP-11/70 and
my 60% scaled (“working”) RK05 drive. I only modified the files pdp11_cpu and 
pdp11_rk05,
and added my own code to handle the 2 switches, 8 indicators and the door / 
disk loading.
see https://www.pdp-11.nl/pidp1170/rk05/rk05startpage.html (at the bottom of 
the page).
I will check whether it could be scaled to 60% using standard 3 mm (warm-white) 
LEDs
(if those exist, else I would probably use yellow-ish).

Henk, PA8PDP

RE: RK11-C indicator panel inlays?

[Henk Gooijen via cctalk]

Van: Noel Chiappa via cctalk
Verzonden: zondag 5 december 2021 20:12
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: RK11-C indicator panel inlays?


Anyway, if anyone is interested, the next step would be to find out who all
wants an RK11-C inlay, and work out _exactly_ what would be printed on it.

Noel

I am definitely interested. Never saw the RK-11C (except once on eBay some 15 
years ago)!
However, I have *two* DX11 front panels with the 144 lamps & 4 ”paddle” 
connections boards.
I developed a 100x160 mm (Euro-card size) PCB with a PIC18F252 and 10 MCP23S17 
ICs.
You serially send a command to the PIC and the PIC controls the MCP23S17 
outputs.
Per command you control 8 lamps. On the PCB is one difficult part: a 4 position 
one-slot block
to put the 4 paddle boards in.

Given you have 144 lamps panel with the RK11-C front, what would you do to 
light up the lamps?

Henk, PA8PDP

RE: PDP-11/70 Boards

[Henk Gooijen via cctalk]

Van: Henk Gooijen via cctalk<mailto:cctalk@classiccmp.org>
Verzonden: dinsdag 30 november 2021 22:52
Aan: General Discussion: On-Topic and Off-Topic 
Posts<mailto:cctalk@classiccmp.org>
Onderwerp: RE: PDP-11/70 Boards

Van: Fritz Mueller via cctalk<mailto:cctalk@classiccmp.org>
Verzonden: dinsdag 30 november 2021 22:43
Aan: General Discussion: On-Topic and Off-Topic 
Posts<mailto:cctalk@classiccmp.org>
Onderwerp: Re: PDP-11/70 Boards


> I built mine from a layout on Tom Uban’s site: 
> http://www.ubanproductions.com/museum.html

> Did you use that directly with ExpressPCB and order from ExpressPCB or did 
> you convert to more standard gerbers?

I just went with ExpressPCB for minimal hassle, but you could probably get it 
cheaper from other board houses these days.  For my KB11-A + FP11-B, which run 
asynchronously, it was handy to build up two of these.  Also useful for the 
RK11-C.

  —FritzM.

And useful for PDP-11/05, PDP-11/10, PDP-11/20, PDP-11/35, PDP-11/40 … more?
Henk, PA8PDP
I also seem to remember the RX01 (and RX02?)

RE: PDP-11/70 Boards

[Henk Gooijen via cctalk]

Van: Fritz Mueller via cctalk
Verzonden: dinsdag 30 november 2021 22:43
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: PDP-11/70 Boards


> I built mine from a layout on Tom Uban’s site: 
> http://www.ubanproductions.com/museum.html

> Did you use that directly with ExpressPCB and order from ExpressPCB or did 
> you convert to more standard gerbers?

I just went with ExpressPCB for minimal hassle, but you could probably get it 
cheaper from other board houses these days.  For my KB11-A + FP11-B, which run 
asynchronously, it was handy to build up two of these.  Also useful for the 
RK11-C.

  —FritzM.

And useful for PDP-11/05, PDP-11/10, PDP-11/20, PDP-11/35, PDP-11/40 … more?
Henk, PA8PDP

RE: PDP-11/70 Boards

[Henk Gooijen via cctalk]

Van: Jay Jaeger via cctalk
Verzonden: maandag 29 november 2021 21:05
Aan: cctalk@classiccmp.org
Onderwerp: Re: PDP-11/70 Boards

On 11/29/2021 7:32 AM, Ed C. via cctalk wrote:
> Dear list, I'm currently restoring a PDP-11/70 system and need the
> following boards to complete the CPU:
>
> FP11-C slots:
> M8127
> M8128
> M8129
>
> Cache slots:
> M8142
> M8143
> M8144
> M8145
>
> Any help finding these is appreciated. Thanks.

So, it turns out that I *do* have an FP11-C.  My PDP-11/45 with the
KB11-D processor in it has an FP11-C.  So, at the least, I would need to
try and figure out if the boards in it right now are the ones that came
with it [This is what my notes from 1989/1990 say], or are my spares,
and, at the least one of the two M8126 boards is marked "Bad".

JRJ


I think the FP11 boards are not essential for the 11/70
They only add hardware FP support.
However, I think that the cache boards are essential.
Not sure the 11/70 will work without them.

Henk, PA8PDP

RE: Unix or BSD for Dec PDP 11/34 and 11/45

[Henk Gooijen via cctalk]

Van: Jay Jaeger via cctalk
Verzonden: vrijdag 17 september 2021 22:08
Aan: devin davison; General Discussion: On-Topic 
and Off-Topic Posts
Onderwerp: Re: Unix or BSD for Dec PDP 11/34 and 11/45

On 9/17/2021 6:37 AM, devin davison via cctalk wrote:

> Hello,
>
> If possible too, id like to be able to telnet in to unix or bsd.I was also
> curious if a ethernet interface exists for my unibus systems, or if i could
> SLIP/PPP serial to another machine,so i could telnet in as well as use dumb
> terminals.
>

A UNIBUS Ethernet interface does exist - the DEUNA.  It is two boards,
and very power hungry.   I have a a couple of third party Ethernet
boards from a VAX, but no documentation on them.   They are not in my
inventory (they came from a couple of Intergraph VAX systems, and I
didn't inventory any of those boards), so I'd have to hunt to find them.
  I doubt very much they are standard DEC software compatible.

JRJ


IIRC, the DEUNA pulls 18 Amps from 5V.
But there was also a single hex board UNIBUS Ethernet interface from DEC,
the DELUA (M7521-AA IIRC, too lazy to look up). It uses a 68010 at 10 MHz.

Henk, PA8PDP

RE: DEC PDP-11/45 backplane +5 ECO

[Henk Gooijen via cctalk]

Van: Noel Chiappa via cctalk
Verzonden: woensdag 28 april 2021 16:08
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: Re: DEC PDP-11/45 backplane +5 ECO

> From: Henk Gooijen

> I have the M8120 and 4 M8121 boards (32kW bipolar RAM). It is a bit
> weird, but in the 11/55 are also two G114 boards (4kW MOS RAM), IIRC.

G114s? Those are the sense/inhibit module from the MM11-U/MJ11. Did you
mean G401s?

If so, one guess as to what happened there is that the machine used to have
two banks of MS11 Fastbus memory, one bipolar, and one MOS, and some of the
boards from the MOS bank (the memory control, and maybe some of the matrix
boards) got removed?

A KB11-[AD] can have two banks of MS11; the only type mixing allowed is that
one can be all bipolar, and one all MOS; within each bank they all have to be
the same. More here:

  https://gunkies.org/wiki/MS11_Semiconductor_Memory_System

Interesting factoid: the M8110 and M8120 use the same etch. I'm not sure
quite what the difference is (the MS11-A MM doesn't say, I couldn't find, and
I don't think we have the M8120 engineering drawings, just the M8110);
the M8120 has a bunch of ECO wires on it, and maybe there are component changes
too. (I don't have an M8110 to compare them directly.)

Noel


Thanks for the correction Noel.
I “knew” that G114 was not correct    Indeed, G401 is better!
One day, I will work on the /45 eand /55 …

Henk

RE: DEC PDP-11/45 backplane +5 ECO

[Henk Gooijen via cctalk]

Van: Noel Chiappa via cctalk
Verzonden: zondag 25 april 2021 05:28
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: Re: DEC PDP-11/45 backplane +5 ECO

PS: I wonder how many people here have -11/45's? ISTR one other, but they aren't
common.


I have one 11/45, and one 11/55.
Most of the CPU boards in the 11/55 are the same as the ones in the 11/45,
but I have the M8120 and 4 M8121 boards (32kW bipolar RAM). It is a bit
weird, but in the 11/55 are also two G114 boards (4kW MOS RAM), IIRC.

Both will need a thorough inspection before powering up!
Henk, PA8PDP

RE: DEC BA11-K KY11-L mounting brackets -- how?

[Henk Gooijen via cctalk]

Is this what you mean Fritz?
www.pdp-11.nl/pdp11-34a/pdp11-34general.html
  at the bottom.


Van: Fritz Mueller via cctalk
Verzonden: zondag 18 april 2021 23:00
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: DEC BA11-K KY11-L mounting brackets -- how?

Hi all,

I'm reassembling an PDP-11/34 in a BA11-K chassis right now, and am a little 
puzzled by the front mounting brackets (the ones that hold a KY11-L of either 
sort on the bottom, and a half trim-panel on the top).  In particular, on the 
bottom half, the available place for screws to go to attach the bracket to the 
chassis is nearly completely blinded by an overhanging tab.

The engineering drawings I've seen are unfortunately not very clear on this...  
Anybody have an 11/34 in a BA11-K and care to take a peek and tell me how the 
hardware here is properly configured? (Hex head instead of DEC's ubiquitous 
Phillips truss, to allow tightening from the side?  Machine screw from back, 
and a nut on the front?  Other?)

cheers,
  --FritzM.

RE: Digitalker 54104 IC

[Henk Gooijen via cctalk]

I know the SP0256-AL2 (it is a zero not an “ooo”).
That chip is a phoneme generator and it was described in a BYTE issue.
It has (IIRC) 6 “data” inputs to select one of the 64 stored phonemes,
and a strobe signal. Depending on the suffix (here “-AL2”) it contains
certain phonemes and can co-operate with external premanufactured
Speech ROMs. You can google for more info on the SP0256-AL2.
The “-AL2” was the generic phoneme chip, I used it in my StarShip back
In theearly ’90-ties. *very* robotic speech 
Note that the chips needs an external Xtal of somewhat odd frequency,
but I think it will work with an Xtal of (again IIRC) 3.2 MHz.

Van: Bill Gunshannon via cctalk
Verzonden: zaterdag 13 februari 2021 18:05
Aan: cctalk@classiccmp.org
Onderwerp: Re: Digitalker 54104 IC

On 2/13/21 11:44 AM, ED SHARPE via cctalk wrote:
>
> Bill...this just  struck a memory I think I have a Radioshack Digitalker in a 
> packaging  but recall it being just one large chip...  Ed #SMECC

The one I have in front of me is the SPO256-AL2 (actual chip is labeled
SPO256-017) and the package includes an SPR016-117 which is listed as an
External Serial Speech ROM.  Would probably be fun to hook it up to an
Arduino and see what it has to say.  :-)

bill

RE: M688 Flip Chip Unibus Power Fail Driver Modules

[Henk Gooijen via cctalk]

Van: Ethan Dicks via cctalk
Verzonden: donderdag 7 januari 2021 01:55
Aan: Noel Chiappa; General Discussion: 
On-Topic and Off-Topic Posts
Onderwerp: Re: M688 Flip Chip Unibus Power Fail Driver Modules

On Wed, Jan 6, 2021 at 5:24 PM Noel Chiappa via cctalk
 wrote:
> Anyone need/want a couple of these? Someone has a group of 5 for sale on eBait
> (#184317666245), and I want a couple, but not _5_. The seller didn't respond
> to a request to split up the lot, so I'd like to go in with a couple of other
> people on the. Any takers?

I'm a "maybe"... what are these found in? (I have quite a bit of early
70s PDP-11 gear).

-ethan


ISTR that the M688 is optional in the RH-11 (MASSBUS interface for PDP-11),
but I am too lazy to check (still too early).

Henk, PA8PDP

RE: Firing up the pdt11

[Henk Gooijen via cctalk]

See below.

Van: Chris Zach via cctalk
Verzonden: maandag 12 oktober 2020 03:14
Aan: Richard Pope; On-Topic and Off-Topic 
Posts
Onderwerp: Re: Firing up the pdt11

Well, by "location" I mean there are plugs on the controller board for
PD0 (typically called the "top" drive) and PD1 (typically the "bottom"
drive). My test swapped the cables so the top drive was using the PD1:
logic on the board and the "bottom" was using the PD0 logic. In that
situation the PD1: channel with the top drive worked so the problem is
not in the logic board.


Chris,
When you swap the cables (and keep the drives in place), do you mean
that you swapped the data connection *and* the power supply cable(s)?

Henk

RE: Dilithium Press (Computer Books)

[Henk Gooijen via cctalk]

Yes, that’s the one I have!
The thinner one (with colored pages?), I have never seen.

It describes procedures in a sort of FORTRAN style, at a “high level”.
It means you have to implement everything yourself 
Do not think you’re almost done, it is just a start.
Think of the following modules:

  *   Navigation officer
  *   Tactical officer
  *   - etc
  *   the Brig
  *   sensors (and the data)
  *   “universe intelligence”
  *   enemy ships
  *   etc.



Van: Richard Cini via cctalk
Verzonden: woensdag 15 juli 2020 04:15
Aan: Jason Howe; General Discussion: On-Topic and 
Off-Topic Posts
Onderwerp: Re: Dilithium Press (Computer Books)

This?


The complete Star Ship: A simulation project (DP series in games ; no. 1) 
https://www.amazon.com/dp/091839810X/ref=cm_sw_r_oth_api_i_mzMdFbMVV3YHH

I actually have this book somewhere. I also remember a thinner one with a 
highly-colored cover.

Get Outlook for iOS

From: cctalk  on behalf of Jason Howe via cctalk 

Sent: Tuesday, July 14, 2020 10:04:51 PM
To: cctalk@classiccmp.org 
Subject: Re: Dilithium Press (Computer Books)

Agreed, this sounds like a ton of fun to implement.

--Jason

On 7/14/20 6:45 PM, Zane Healy via cctalk wrote:
> I’d love details on this!  This sounds vaguely like a game I played on a 
> Harris Minicomputer in the late 80’s.
>
> Zane
>
>
>
>> On Jul 14, 2020, at 12:03 PM, Henk Gooijen  wrote:
>>
>>
>> If I am not mistaken, I have a book called Star Trek and it is from 
>> Dilithium Press!
>> Memory is a bit vague, but it must be on one of my shelves.
>> The book describes in “FORTRAN style” the procedures for an NCC1701 
>> simulator 
>> But if you dig deeper, there is * a lot * to do yourself.
>> Anyway, this book was my inspiration to build a StarShip simulator back in 
>> the (19)80-ties.
>>
>> Henk
>>
>> Van: Zane Healy via cctalk 
>> Verzonden: dinsdag 14 juli 2020 15:53
>> Aan: General Discussion: On-Topic and Off-Topic Posts 
>> 
>> Onderwerp: Dilithium Press (Computer Books)
>>
>> Out of curiosity, does anyone know anything about this publisher?  They 
>> apparently existed in the late 70’s and early 80’s.  They were apparently 
>> located in Beaverton, Oregon in the same business park, on Nimbus, where 
>> Norvac Electronics was.  They obviously published some very strange computer 
>> books, including what looks to be a teen romance.  I find myself with an 
>> embarrassingly nice little collection of the books, that my Dad apparently 
>> had.  Considering I think he touched a computer twice in his life, they’re 
>> something of a mystery.
>>
>> Best title, “Nailing Jelly to a Tree”, which is apparently a book on 
>> Software.
>>
>> The publisher sounds vaguely familiar, and I think I might have one or two 
>> other books from them in my collection.
>>
>> Zane
>>
>

RE: Dilithium Press (Computer Books)

[Henk Gooijen via cctalk]

If I am not mistaken, I have a book called Star Trek and it is from Dilithium 
Press!
Memory is a bit vague, but it must be on one of my shelves.
The book describes in “FORTRAN style” the procedures for an NCC1701 simulator 
But if you dig deeper, there is * a lot * to do yourself.
Anyway, this book was my inspiration to build a StarShip simulator back in the 
(19)80-ties.

Henk

Van: Zane Healy via cctalk
Verzonden: dinsdag 14 juli 2020 15:53
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Dilithium Press (Computer Books)

Out of curiosity, does anyone know anything about this publisher?  They 
apparently existed in the late 70’s and early 80’s.  They were apparently 
located in Beaverton, Oregon in the same business park, on Nimbus, where Norvac 
Electronics was.  They obviously published some very strange computer books, 
including what looks to be a teen romance.  I find myself with an 
embarrassingly nice little collection of the books, that my Dad apparently had. 
 Considering I think he touched a computer twice in his life, they’re something 
of a mystery.

Best title, “Nailing Jelly to a Tree”, which is apparently a book on Software.

The publisher sounds vaguely familiar, and I think I might have one or two 
other books from them in my collection.

Zane

RE: UniSys ClearPath OS/2200 Express?

[Henk Gooijen via cctalk]

Van: Bill Gunshannon via cctalk
Verzonden: woensdag 1 juli 2020 03:05
Aan: cctalk@classiccmp.org
Onderwerp: Re: UniSys ClearPath OS/2200 Express?

On 6/30/20 6:29 PM, Alan Perry via cctalk wrote:
> Why would one get OS/2200 when they can get 
> https://www.unisys.com/offerings/clearpath-forward/clearpath-forward-products/clearpath-mcp-software/clearpath-mcp-express
>  ?
>

Because I very much enjoyed working on Exec-8 on the 1100 lo those
40 years ago.  :-)

bill


I always wanted “something” at home to remind me of my days when working with 
EXEC 37R5 (IIRC, 1991-1999 time frame).
Back then I could read the panic dump listing, a stack of 3 inches thick paper 
only containng 36-bit octal words, and find which program (or user) caused EXEC 
to crash. The joke was “let’s find the 8”.
I did EXEC, Videotex, DMS-1000, and MAPPER. For EXEC and MAPPER I had the 
SPERRY “internals” course.

I really liked MASM and PLUS.
I remember two ERs, ADED$ and SMOQUE$. With the latter I was able to move my 
print out to the top of the queue 
IIRC, with ADED$ you could assign (and lock) a CPU to your program. A silly 
mistake in my MASM program “ate” all three CPUs of the 1100/63. Everything 
froze, and even on the console in the computer room response was extremely 
slow. $! had no immediate effect!

Those were the days!  I think I will try to get 2200 running, but I am afraid I 
forgot most of it (if not all), it’s been over 20 years.

Henk

RE: several items for sale and a note.

[Henk Gooijen via cctalk]

Van: allison via cctech
Verzonden: vrijdag 22 november 2019 20:01
Aan: cct...@classiccmp.org
Onderwerp: several items for sale and a note.

Now stuff for sale:
The rules are, none for free, make a reasonable offer.  PICKUP only
eastern MA in a reasonable amount of time.  I WILL NOT PACK OR SHIP,
too heavy, damage too likely.  Make offers offline, anything no
interest will be disposed of.

First item:
  Vt180, complete sans wart box, operating, and with second set of RX180
  drives.  I will not break this up. I have some disks for it as well.
  Terminal box is 8 or better and not too yellow.

Allison


I hope the buyer (or maybe you Allison?) will take the time to beep
the floppy disk drive interface cable.
The floppy drive side has a DB-25 connector, the VT180 side has a
DC-37 connector. Not much to find about it on the internet,
See 
www.pdp-11.nl/vt180/vt180-info.html 
   I would love to get
confirmation that the home-made cable is correct …

Thanks,
Henk

RE: Shipping from Europe to USA

[Henk Gooijen via cctalk]

A few weeks ago I shipped approx 39 kilos from The Netherlands to USA (HP A990).
At least in Holland, most shippers do not accept such heavy stuff (max 30 
kilos).

Only UPS did … and yes, the “horror” stories *are* true. They managed to drop 
the package.

Not from 4 inches above ground, but more, because a *steel corner* had a dent!

I thought I packed it well (enough), but my advice is: using UPS you cannot get 
it packed well enough ☹






Van: cctalk  namens Steven Stengel via cctalk 

Verzonden: Thursday, August 22, 2019 7:31:46 PM
Aan: Cc 
Onderwerp: Shipping from Europe to USA

How do I ship a 50 pound computer from Europe to the United States? Who has 
good rates?
Thanks-
Steve

Searching digital copy of KD11-K (PDP-11/60) Processor Technical Manual

[Henk Gooijen via cctalk]

Hi Guys,

I am trying to get my PDP-11/60 up and running,
and I very much like to read the Processor Technical Manual.
It’s “name” is EK-KD11K-TM and I am looking for a PDF of it.

I do have this manual on a microfiche, but reading a manual
from the fiche reader screen is not much fun. Maybe I need
to find a municipal service that allows you to copy fiche images
one by one on A4 paper. The city of Venlo had that in the 1990ies,
and I used it to copy the cache manual of the 11/34 from fiche
to paper back then.

Thanks, Henk

RE: 9-Track Magtape Drive ID

[Henk Gooijen via cctalk]

Van: Mark J. Blair via cctalk
Verzonden: zondag 2 juni 2019 00:25
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: 9-Track Magtape Drive ID

> On Jun 1, 2019, at 14:57, John H. Reinhardt via cctalk 
>  wrote:
> Is this the system that was on Reddit?

Yes. I’ll be fetching it next weekend. I’m excited! I wonder if the hard drive 
is still usable, and if there is anything interesting on it?

By a chance meeting with my neighbor today, I learned he has a bunch of pallet 
racking from a defunct business he emptied out. He offered that I could go grab 
some for myself. He also mentioned that he planned to bring some to his farm 
next door to me before he sells off the rest. Since I’m planning to rent a 
truck next weekend anyway, I offered to help out by hauling for both of us in 
exchange for taking a skim off the top of the pile. It’ll be a busy weekend!

--
Mark J. Blair 
http://www.nf6x.net

Mark, you probably know …
It is best to get a truck with a tail lift. Then you can roll the entire rack 
into the truck.
No hassle with disassembly and making notoes how everything was routed.
BTW, the disk drive in the bottom is *heavy*. You could lift it by yourself, 
but that
Is not very clever. Better lift it with two persons. The same goed for the 
Kennedy
tape drive – heavy!  And the 11/34, in a 10.5” box will be heavy at the rear 
side
where the transformer and power supplies are.
So, disassembly will give you 3 heavy items best lifted by 2 guys. Leaving it 
in the
rack and pay a bit more for a truck with tail lift, is a wise decision for your 
back!

Regarding the rubber rings on the hubs of the tape drive, I remember that 
somebody
once told that when the rubber tension is weak (because the ring diameter got a 
bit
bigger, you can get the ring back to its original shape by putting it in warm 
water.
Worth a try if needed …

Henk, PA8PDP

RE: Only never in Canada - dumb terminals

[Henk Gooijen via cctalk]

Would this be useful?

http://geoffg.net/terminal.html



Henk, PA8PDP




Van: cctalk  namens ben via cctalk 

Verzonden: Saturday, March 23, 2019 8:07:36 AM
Aan: cctalk@classiccmp.org
Onderwerp: Only never in Canada - dumb terminals

I am building a project that needs to use a Stand alone dumb terminal
like a VT 52 or Similar. Alas I can't find any low cost Hardware
Solutions here in Canada. Low cost with shipping under is $150 Canadian
for me.Software terminal emulation is just a stop gap fix.
Any ideas out there. Even a better search keyword than "dumb terminal"
would help. Ben.

searching for TEAC MT-2R tape deck documentation

[Henk Gooijen via cctalk]

Hi guys,
Today I found a TEAC MT-2R cassette tape drive on a radio amateur
flee market. These tape drives use a tape cassette similar to the
audio tape cassette. The MT-2R tape deck has servo control logic
for tape motion and a CPU with firmware taat makes the tape unit
a block-addressable device (AFAIK).
However, I can only find doc of the MT-2ST, but that is another MTU.

Does anybody have doc of the TEAC MT-2R ?

Thanks,
Henk, PA8PDP

RE: Thinking about PDP11 PC05 Emulation

[Henk Gooijen via cctalk]

Hi Jay,

Have a look at 
www.pdp-11.nl/peripherals/tape/pc05-simh-pc.html

If you are interested I can tell you more …



I can read and punch tape. PC05 + interface (PIC 18F4550) connects using RX/TX 
to USB to PC.

Reading one character at a time works fine (speed some 20 char/sec, so-called 
start-stop mode).

Reading in “streaming mode” is probably some 300 char/sec, but I get 
unexplained “out-of-paper” state sometimes, and reading stops (of course).



To read from the PC05 reader you need IOP2, IOP4, and INT*. Maybe BUSY* is 
needed, not sure about that.

INITIALIZE* is good to have as well. A few other signals (for example IOP1) 
needs to be connected to an appropriate level. And 8 data inputs, which need a 
pull-up resistor. Note that the data from the reader is inverted.



To punch you only need IOP4 (IIRC) and of course 8 data outputs.

As you know, reader and punch are two completely isolated devices.



Greetz,

Henk






Van: cctech  namens Jay Jaeger via cctech 

Verzonden: Monday, March 11, 2019 7:11:46 PM
Aan: General Discussion: On-Topic Posts
Onderwerp: Thinking about PDP11 PC05 Emulation

I have several PDP-11's in my collection (among other things), and not
enough PC05 tape readers (or enough room) to go around.  But most if not
all of my machines have M7810 PC11 interfaces, and I have one I could
move from machine to machine as needed.  Moving a PC05 around would be a
lot more work, and not every rack has room.  ;)

So, I took a look at what it might take to interface with an M7810 (or,
down the road, a PDP-8/L or PDP-12.  It looks like the emulator would
have to accept as input just 3 lines (Initialize  L, IOP2(1)/Select,
IOP4(1)/Read) [It would not need the redundant Initialize H, IOP1(1),
Qualify or Skip], and would have to drive 11 lines into the pullups on
the M7810 (8 Data lines, IO Bus INT L/Reader Done L, Outtape/Error and
RDR RUN L/RDR Busy L).

So, a total of 14 interface lines. (The 8 or 12 would take a few more
lines).

The pullups average about 470 ohms (1 is 1K, 1 is 220, the rest are
470), so at 5V the output has to sink a bit over 10ma, and all total
120ma.

An Arduino Uno with an Ethernet shield would have 20 minus 5 lines
available, in theory, but if one wants serial I/O as well for debugging,
that sucks up 2 more lines - so only 13 available.  And sinking 120ma
would be a bit much though I could likely sprinkle inputs among the
outputs to make it work so as to stay within the recommended sink
limits, and at least initially have it never run out of tape, and tie
Error down.

http://playground.arduino.cc/Main/ArduinoPinCurrentLimitations

So, I am thinking about an Arduino Mega, as it has more output groupings
to sprinkle the sink current around, and 5V interface capability, and
more pins to eventually support my PDP-8/L and PDP-12.

(I could do it with a PIC - did that for a Documation card reader to PC
interface, but I am really tired of fighting Microchip's IDE.)

BUT - it also occurs to me someone may have already done something like
this?  Any leads / ideas?

JRJ

RE: VT52 stand

[Henk Gooijen via cctalk]

Marc,

The bottom side has _5_ feet with casters.
On the top side is a metal plate attached, but it is not flat.
It is sort of curved to the center to make the plate sturdy.
The VT52 is mounted on that plate with (IIRC) 8 screws.
The screws go into the base of the VT52. The screws are
located at the 4 corners and in the middle of each side.

Henk, PA8PDP




Van: cctech  namens Marc Howard via cctech 

Verzonden: Saturday, February 23, 2019 5:10:04 AM
Aan: General Discussion: On-Topic Posts Only
Onderwerp: VT52 stand

Does anyone on the list have or have seen the stand that DEC sold with the
VT52?  I'm just curious; does the stand screw into holes on the monitor or
does it just sit on top?

>From what I've seen before it just looks like an office chair base with a
top that is the correct size.

Thanks,

Marc

RE: PDP-11 Memory

[Henk Gooijen via cctalk]

As far as I know about the 11/93 (or 11/94), all memory is on the CPU module.
The 11/9[3|4] is sort-of an 11/8[3|4] with all (PMI) memory on the CPU module 
as the cache on the 8[3|4].

The 11/9[3|4] with 2 MB RAM can only be upgraded to 4 MB by adding RAM chips on 
the CPU module.
However, all holes are filled with solder, so this upgrade is quite a lot of 
work.

Henk

RE: Looking for two DEC H445 power bricks for PDP 11/40 project

[Henk Gooijen via cctalk]

Hi Pierre,



Just to give you an idea, I will go to my museum either on Wednesday or on 
Saturday.



Till then,

Henk




Van: cctalk  namens P Gebhardt via cctalk 

Verzonden: Tuesday, September 18, 2018 10:11:43 AM
Aan: General Discussion: On-Topic and Off-Topic Posts
Onderwerp: Re: Looking for two DEC H445 power bricks for PDP 11/40 project

>> From: Henk Gooijen
>
>   > As far as I know, the 11/40 uses only one H745.
>
>Depends on what kind of memory it has. If MF11-L, it has two H745's; if
>MM11-U, it has an H745 and an H754.
>
>(The harness has two different connectors for the 5th 'brick', so it can
>handle either kind. At least, that's the situation on the later machines
>[serial numbers above 6000]; early production /40's only support the MF11-L,
>and you have to use special add-on harnesses to support an MF11-U in them;
>see DEC-11-H40SA-B-D, Chapter 6 for the details.)

As I don't have core memory modules available, I thought of using MS11 memory,
which, according to my research, seems to be an option for 11/40 systems.
The system manual states on page 6-7 that the base power configuration consists
of two H745 regulators and that one may be swapped with a H754 in case MF11-U
memory is used.
Does that mean that a single H745 regulator might be sufficient for my needs?

All the best,
Pierre

RE: Looking for two DEC H445 power bricks for PDP 11/40 project

[Henk Gooijen via cctalk]

See answer below …

Van: P Gebhardt via cctalk
Verzonden: maandag 17 september 2018 19:54
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Looking for two DEC H445 power bricks for PDP 11/40 project

Hello list,
last year, I was able to obtain a BA11-F chassis for my PDP 11/40 build-up 
project. The power supply to run a system in basic configuration is complete 
except for two H745 bricks (delivering -15V) which are still missing.
I'd be very happy, if anybody could consider parting with one or two. Location 
is in Germany. Please contact me off-list.
Thanks a lot in advance for anybody of you helping me to work towards a running 
my first very classic PDP-11!
Best regards,Pierre

---
Pierre's collection of classic computers moved to: http://www.digitalheritage.de


Hi Pierre,
As far as I know, the 11/40 uses only one H745.
And vague memory seems te recall that the -15V brick is an “odd one”, because, 
unlike all other bricks, it needs the +15V from the regulator that is inside 
the H742 block. But I could be wrong ...

If you have a faulty H745, you can probably repair it. It is not too 
complicated, and when you have a +24 .. 30V DC power supply on the bench (and 
possiby that +15V DC) you can check the H745 out. It’s a secundary switcher, so 
safe to work on.
If you don’t have any H745, let me know. No promises, but I can check what I 
have on a shelf (probably defective, but as said, they can be repaired).

Greetz,
Henk, PA8PDP

RE: VCFMW DEC VTs, LAs

[Henk Gooijen via cctalk]

Hi Paul,



When you get to the Robins,

I am looking for the cable that connects the system to the floppy drive unit.



Thanks!
Henk




Van: cctalk  namens Paul Anderson via cctalk 

Verzonden: Thursday, September 6, 2018 1:17:45 PM
Aan: cct...@vax-11.org; General Discussion: On-Topic and Off-Topic Posts
Onderwerp: Re: VCFMW DEC VTs, LAs

I forgot to mention Decmate, Rainbow and Pro units and Parts.  The Robins
are still buried.

Paul

On Wed, Sep 5, 2018 at 10:55 PM, Paul Anderson  wrote:

> Is anyone interested in any DEC VT50, VT52(ONE WITH PRINTER), VT78,
> any of the VT100 family, or any other video terminals or monitors or parts?
>
> LA35, LA36, LA120, any other printer or parts?
>
> Anything else?  If asked, I will try to bring.
>
> Thanks, Paul
>
>
>

RE: Epson DECTalk IC

[Henk Gooijen via cctalk]

IIRC, that is indeed the DTC07.
I think I have that board, together with the “mating” loudspeaker and
probably also the software. I will check next time I go to my “museum”.

Van: Jason T via cctalk
Verzonden: vrijdag 27 juli 2018 18:00
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: Epson DECTalk IC

There is also the PC ISA card DECtalk, whose DTCxx number I forget
(DTC07 maybe?)  I have one "somewhere" but have never had the software
for it.

-j

RE: Epson DECTalk IC

[Henk Gooijen via cctalk]

Ahhh yes, I remember the Votrax, SC-01.
There was an other chip that you programmed with phonemes,
the SP0256-AL1 (IIRC). I must have it somewhere, forgot the manufacturer.






Van: cctalk  namens Paul Koning via cctalk 

Verzonden: Thursday, July 26, 2018 7:48:36 PM
Aan: Anders Nelson; General Discussion: On-Topic and Off-Topic Posts
Onderwerp: Re: Epson DECTalk IC

If you want even older technology (that actually worked rather well) there's 
Votrax, which apparently is still available occasionally.

paul


> On Jul 26, 2018, at 1:38 PM, Anders Nelson via cctalk  
> wrote:
>
> It takes 9600 (8N1) serial input, and I found a forum thread:
>
> http://www.vcfed.org/forum/archive/index.php/t-34754.html
>
> "The DECTalk was a speech synthesizer (actually there were a few models).
> The DTC01 and 03 can do text to speech when fed ascii text over RS232."

RE: Epson DECTalk IC

[Henk Gooijen via cctalk]

I have the DCT01, and I can say that the DTC01 sounds better than

the .wav file example on the Adafruit website.

Fun to hear the DTC01 ramble along when connected to a VT220

and push the PrintScreen button (IIRC). Works nicely.



AFAIK, in Stephen Hawking’s wheelchair was a DTC01, and it was

thát unit that you heard for Stephen’s speaking.






Van: cctalk  namens Rob Jarratt via cctalk 

Verzonden: Thursday, July 26, 2018 8:57:27 PM
Aan: 'Anders Nelson'; 'General Discussion: On-Topic and Off-Topic Posts'
Onderwerp: RE: Epson DECTalk IC

I'd love to find a real DTC01, I remember encountering one in 1985.

Regards

Rob

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Anders
> Nelson via cctalk
> Sent: 26 July 2018 13:23
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Epson DECTalk IC
>
> For those wanting some DECTalk in their lives without the bulk:
>
> https://global.epson.com/products_and_drivers/semicon/products/speech/
> tts_index.html
>
> There's even a ready to go board here:
>
> https://www.adafruit.com/product/924
>
> =]
>
> --
> --
> Anders Nelson
> +1 (517) 775-6129
> www.erogear.com

RE: Modifying microcode

[Henk Gooijen via cctalk]

Van: Paul Koning via cctalk
Verzonden: woensdag 30 mei 2018 18:49
Aan: Camiel Vanderhoeven; General 
Discussion: On-Topic and Off-Topic Posts
Onderwerp: Re: Modifying microcode



> On May 30, 2018, at 11:11 AM, Camiel Vanderhoeven via cctalk 
>  wrote:
>
> Depending on your definition of small, the MicroVAX 1, and the VAX 8000 
> series (not that small). In both cases though, the ROM chips are a custom DEC 
> design.

Didn't the 780 get its microcode loaded by the console LSI-11?  And the 730 
used bit slice processors (AMD 2901) as I recall, so that had to have its 
microcode external.

paul

I always thought (…) that the TU58 cassette “in” the front of the VAX-11/730
contained the microcode. For ease, that cartridge was kept in the drive so
that it is available at boot time. Causing a lot of “D”shaped rubber rollers …
Henk, PA8PDP

RE: Modifying microcode

[Henk Gooijen via cctalk]

Van: Noel Chiappa via cctalk
Verzonden: woensdag 30 mei 2018 17:17
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: Re: Modifying microcode

> From: Kyle Owen

> So the same technique would work on the 11/35, then?

Yes, the /35 and /40 are completely identical, except for the number
painted on the inlay on the front console.

(Well, the /35 was often sold in a BA11-K box, and the /40 in a BA11-F, but
that's just physical configuration, and is just a 'usually' - there are
/35's in BA11-F's [for sure], and probably /40's in BA11-K's.)

  Noel


I vaguely remember that there was a difference in the front console
For the BA11-K and the BA11-F configuration. When standing in front
of the console, the two ribbon cables from the front panel are at the
right side for a BA11-K box, and on the left side for the BA11-F box.
Given the location of the CPU boards in both boxes, that makes sense.
I do have an 11/35 in BA11-F box (on the system manual cover this
is indicated as the 21“ model).
I also have an 11/35 in BA11-K box, so yes, both configs exist(ed).

Henk, PA8PDP

RE: C paddle switches on sale

[Henk Gooijen via cctalk]

Van: Anders Nelson via cctalk
Verzonden: zaterdag 3 maart 2018 18:24
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: C paddle switches on sale

In case anyone is making a scaled-down front switch panel:

http://www.goldmine-elec-products.com/prodinfo.asp?number=G22319

=]
--
Anders Nelson

+1 (517) 775-6129

www.erogear.com


Those are the ones I used on the “replica” PDP8/e running on 6809.
With a little sanding and spray painting you can get a very nice result.
Note: make sure you also get a few “momentary” ones.
-  Henk, PA8PDP

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

[Henk Gooijen via cctalk]

Van: Al Kossow via cctalk
Verzonden: woensdag 21 februari 2018 20:11
Aan: cctalk@classiccmp.org
Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)



On 2/21/18 10:59 AM, Paul Koning via cctalk wrote:

> The absence of that emulation isn't a big deal, unless you want to run the 
> Richy Lary PDP-8 emulator on that emulated 11/60.  (Has it been preserved?)
>

People have been searching for it for a while now, but it appears to have been 
lost.


I have a WCS module for the 11/60 (and an 11/60 to go with it), but I have 
never seen the required software.
I even forgot the names, something like “microcode assembler” and linker. Are 
the assembler, etc tools available?
The 11/60 microcode for the PDP8 emulation is not helping much either if the 
required tools are gone.
Crazy idea … I am repairing a dead 11/40 and learning a lot of how the CPU 
works. There are 256 microde instructions
all 56 bits (IIRC, too lazy to check now). If you install the EIS or FIS, you 
get new microcode instructions on top of the standard 256. “Copying” how EIS 
and FIS add their micro instructions could be the basis of an 11/40 “PDP-8” 
add-on, just like EIS and FIS 
Yeah, I know, I started the paragraph with “crazy idea” …

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

[Henk Gooijen via cctalk]

Van: Ethan Dicks via cctalk
Verzonden: woensdag 21 februari 2018 20:44
Aan: Paul Koning; General Discussion: On-Topic 
and Off-Topic Posts
Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 1:59 PM, Paul Koning via cctalk
 wrote:
> If microcode is not user-changeable, or if that capability is not a core 
> feature, then you can easily omit it.  That tends to make the job much 
> easier.  For example, I don't know that anyone emulates the PDP-11/60 WCS.  
> The absence of that emulation isn't a big deal, unless you want to run the 
> Richy Lary PDP-8 emulator on that emulated 11/60.  (Has it been preserved?)

I have long heard of the PDP-8 emulator that depends on the 11/60 WCS
but every time it comes up, it's always been said to be lost.

Feel free to prove me wrong, anyone.  I'd love to stare at it.

-ethan

Tekst on my website:

The only other PDP-11 that has a WCS option (KUV11, M8018) is the PDP-11/03, 
KD11-F processor.
Ritchie Lary wrote the micro-code for the PDP-11/60 to emulate the PDP-8 
instruction set, making it the "fastest PDP-8 ever".
It is a pity that the source code seems to be lost. Even Ritchie Lary, the 
author, no longer had the source when Eric Smith inquired some years back 
(~2011 - 2012), and Ritchie did not think that anyone else was likely to have 
it. So, it appears to be lost forever.

☹

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

[Henk Gooijen via cctalk]

Van: Paul Koning via cctalk
Verzonden: woensdag 21 februari 2018 20:37
Aan: Guy Sotomayor Jr
CC: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)


> However, it is my belief (and I think others have also stated) that assuming 
> infinitely fast I/O (e.g. no delays what so ever) can cause issues because in 
> many cases the SW expects to be able to do some work between the time that 
> the I/O is started and when it completes.

True, that is unfortunately a fairly common type of software bug.  And because 
it is, emulators have to work around those bugs.  I make it a point to call it 
a bug, though, because I don't want anyone to get the impression that OS 
programmers who wrote such things were doing the right thing.

paul

Yeah, I found that out when I was working on the PDP8/e emulation running on a 
6809. OS/8 does that as well. After issueing the disk I/O it executes a few 
more instructions, because it “knows” that the requested disk data cannot yet 
have been loaded into memory. I solved that problem with a counter that can be 
preset to some TBD value. The value defines the number of extra emulated 
instructions before it jumps to the (now) loaded data from disk – at least, 
that is how I remember it doing over 10 years ago. I have an extensive webpage 
on pdp8 emulation on 6809. I succeeded in finishing it: booting OS/8 and 
running spacewr on it!
Don’t ask how “fast” it ran …

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

[Henk Gooijen via cctalk]

Van: Pontus Pihlgren<mailto:pon...@update.uu.se>
Verzonden: woensdag 21 februari 2018 21:15
Aan: Henk Gooijen<mailto:henk.gooi...@hotmail.com>; General Discussion: 
On-Topic and Off-Topic Posts<mailto:cctalk@classiccmp.org>
CC: Paul Koning<mailto:paulkon...@comcast.net>
Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 07:44:33PM +, Henk Gooijen via cctalk wrote:
>
> Van: Paul Koning via cctalk<mailto:cctalk@classiccmp.org>
> Verzonden: woensdag 21 februari 2018 20:37
> Aan: Guy Sotomayor Jr<mailto:g...@shiresoft.com>
> CC: General Discussion: On-Topic and Off-Topic 
> Posts<mailto:cctalk@classiccmp.org>
> Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)
>
>
> > However, it is my belief (and I think others have also stated) that 
> > assuming infinitely fast I/O (e.g. no delays what so ever) can cause issues 
> > because in many cases the SW expects to be able to do some work between the 
> > time that the I/O is started and when it completes.
>
> True, that is unfortunately a fairly common type of software bug.  And 
> because it is, emulators have to work around those bugs.  I make it a point 
> to call it a bug, though, because I don't want anyone to get the impression 
> that OS programmers who wrote such things were doing the right thing.
>
> paul
>
> Yeah, I found that out when I was working on the PDP8/e emulation running on 
> a 6809. OS/8 does that as well. After issueing the disk I/O it executes a few 
> more instructions, because it “knows” that the requested disk data cannot yet 
> have been loaded into memory. I solved that problem with a counter that can 
> be preset to some TBD value. The value defines the number of extra emulated 
> instructions before it jumps to the (now) loaded data from disk – at least, 
> that is how I remember it doing over 10 years ago. I have an extensive 
> webpage on pdp8 emulation on 6809. I succeeded in finishing it: booting OS/8 
> and running spacewr on it!
> Don’t ask how “fast” it ran …


While I too might consider it a bug and bad style. The OS/8 guys knew
exactly what hardware they would support and probably gained some
performance by doing it "wrong"

Do you have a link to your work?

/P


Direct link: 
www.pdp-11/nl/homebrew/pdp8/pdp8startpage.html<http://www.pdp-11/nl/homebrew/pdp8/pdp8startpage.html>
It is a long story! From the start to a working emulation with lots of debug 
facilities (as found on HP64000 development systems). But this emulation runs 
the pdp8 diagnostics without errors.

RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)

[Henk Gooijen via cctalk]

Van: Henk Gooijen via cctalk<mailto:cctalk@classiccmp.org>
Verzonden: woensdag 21 februari 2018 21:20
Aan: Pontus Pihlgren<mailto:pon...@update.uu.se>; General Discussion: On-Topic 
and Off-Topic Posts<mailto:cctalk@classiccmp.org>
Onderwerp: RE: Writing emulators (was Re: VCF PNW 2018: Pictures!)



Van: Pontus Pihlgren<mailto:pon...@update.uu.se>
Verzonden: woensdag 21 februari 2018 21:15
Aan: Henk Gooijen<mailto:henk.gooi...@hotmail.com>; General Discussion: 
On-Topic and Off-Topic Posts<mailto:cctalk@classiccmp.org>
CC: Paul Koning<mailto:paulkon...@comcast.net>
Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

On Wed, Feb 21, 2018 at 07:44:33PM +, Henk Gooijen via cctalk wrote:
>
> Van: Paul Koning via cctalk<mailto:cctalk@classiccmp.org>
> Verzonden: woensdag 21 februari 2018 20:37
> Aan: Guy Sotomayor Jr<mailto:g...@shiresoft.com>
> CC: General Discussion: On-Topic and Off-Topic 
> Posts<mailto:cctalk@classiccmp.org>
> Onderwerp: Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)
>
>
> > However, it is my belief (and I think others have also stated) that 
> > assuming infinitely fast I/O (e.g. no delays what so ever) can cause issues 
> > because in many cases the SW expects to be able to do some work between the 
> > time that the I/O is started and when it completes.
>
> True, that is unfortunately a fairly common type of software bug.  And 
> because it is, emulators have to work around those bugs.  I make it a point 
> to call it a bug, though, because I don't want anyone to get the impression 
> that OS programmers who wrote such things were doing the right thing.
>
> paul
>
> Yeah, I found that out when I was working on the PDP8/e emulation running on 
> a 6809. OS/8 does that as well. After issueing the disk I/O it executes a few 
> more instructions, because it “knows” that the requested disk data cannot yet 
> have been loaded into memory. I solved that problem with a counter that can 
> be preset to some TBD value. The value defines the number of extra emulated 
> instructions before it jumps to the (now) loaded data from disk – at least, 
> that is how I remember it doing over 10 years ago. I have an extensive 
> webpage on pdp8 emulation on 6809. I succeeded in finishing it: booting OS/8 
> and running spacewr on it!
> Don’t ask how “fast” it ran …


While I too might consider it a bug and bad style. The OS/8 guys knew
exactly what hardware they would support and probably gained some
performance by doing it "wrong"

Do you have a link to your work?

/P


Direct link: 
www.pdp-11/nl/homebrew/pdp8/pdp8startpage.html<http://www.pdp-11/nl/homebrew/pdp8/pdp8startpage.html<http://www.pdp-11/nl/homebrew/pdp8/pdp8startpage.html%3chttp:/www.pdp-11/nl/homebrew/pdp8/pdp8startpage.html>>
It is a long story! From the start to a working emulation with lots of debug 
facilities (as found on HP64000 development systems). But this emulation runs 
the pdp8 diagnostics without errors.
Oops, typo.
Change /nl to .nl
www.pdp-11.nl/homebrew/pdp8/pdp8startpage.html<http://www.pdp-11.nl/homebrew/pdp8/pdp8startpage.html>

RE: DECwriterIV/LA100s and large DEC monitors available, Cambs UK

[Henk Gooijen via cctalk]

Van: Zane Healy via cctalk
Verzonden: vrijdag 9 februari 2018 23:22
Aan: Adrian Graham; General Discussion: 
On-Topic and Off-Topic Posts
Onderwerp: Re: DECwriterIV/LA100s and large DEC monitors available, Cambs UK


> On Feb 9, 2018, at 11:26 AM, Adrian Graham via cctalk  
> wrote:
>
> LA100-CA

I’m really glad you’re on the right side of the Pond!  I really don’t have the 
space to get tempted by something like this! :-)

Zane


I am at the “right” side, and was very tempted …
I could not find in a short time the weight of the LA100, but then figured that 
shipping cost from the UK to The Netherlands would very likely be too costly. 
But if Adrian can give me an estimate and it would be say £50 I would seriously 
reconsider …
If somebody in the UK could collect for me and has a stay in Holland 
*anywhere*, I would drive across Holland and pick it up 
Anybody in Holland trying to get rid of an LA100?
Henk

repairing a dead PDP-11/35

[Henk Gooijen via cctalk]

Best wishes for 2018!
I have been busy trying to repair my dead 11/35.
The system was working, but there was one screw loose that mounts the
system units in the BA11 box ... that screw created a short circuit :-(
After powering the 11/35, ENA/HALT on HALT, and toggling the LOAD ADRS
switch, all DATA lamps go on, and after that the machine is totally
non-responsive.

I installed the KM11 replica from Guy Sotomayor (at last, after 7 years,
I have soldered one of the kits that I had since 2011-2012!). With the
KM11, I can step the microcode right from power up.   When I toggle
LOAD ADRS I see that the SWITCH signal (via the 7474 flipflop) is set,
but when the microcode checks *which* toggle was activated it decides
that none was activated. I measured the signals that play a role here,
and all looks fine.

Now, what gets me puzzled.
If I toggle the LOAD ADRS switch *and hold it pressed down*, then, when
I step the microcode, the branch that handles the LOAD ADRS switch
actually does get executed, and the ADDRESS lamps on the console show
the switch register settings.

Anybody for clues how to proceed?

If you are interested, I made a write up of my testing in (way) more detail:
www.pdp-11.nl/pdp11-35/repair/repair35page.html

Thanks for any advice,
Henk

RE: RL02 to PC image

[Henk Gooijen via cctalk]

Van: Ethan Dicks via cctalk
Verzonden: vrijdag 15 december 2017 19:34
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: RL02 to PC image

On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
 wrote:
> vtserver does indeed work for transferring RL02 contents to a binary image,
> suitable for use with SIMH or E11 or whatever.

Yep.  I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.

> Be advised, it takes a *long*
> time, even on a 11/73 with the serial port turned up to 38400 bps.

Has anyone done any console serial port hacking for speed on Qbus or
Unibus?  On something integrated like a KDF11-B it might not be so
easy, but maybe a DLV11J or a DL11W?

I'd think hitting 115200 would be really sweet, if everything can keep
up.  Totally worth some experimentation to see what part gives out at
ludicrous speed.

-ethan


I have not yet had time to build/test it, but a few months ago there
was an RL01/RL02 emulator project on VCF.  You need a PDP-11
with RL11 controller. The RL0x emultor connects to the RL11
just as an RL01/RL02 disk drive and you can assign it any drive
number (0 - 3).
But what is really nice is that the emulator cooperates with
real RL drives. So, you can have one real RL0x drive and up
to 3 “emulated” RL drives. The storage is a flash card.
The RT-11) command .COPY DL0:*.* DL1: works (where #0 is real,
and #1 is flash).
After the copy you pull the flash card and copy it on a PC.

RE: 11/04 Project

[Henk Gooijen via cctalk]

Jumping over the settings. They seem OK, as you get the AB in Hyperterm.

That 777564 shows 000200 is also correct (as I remember that): it indicates 
“transmit buffer empty”.

You can also try it the other way:

  *   type one character in Hyperterm
  *   check that 777560 has the receiver buffer full flag set (000200)
  *   in 777562 you will see the typed character (in octal)



773024 showing 165024 rings a bell. IIRC, 165024 is the start address of the 
monitor on the M9312.

That is the PROM “in the middle” on the board.



I think that if you enter CLR, 165024 LAD, CTRL/START you will get the “@”.

BTW, there is a second start address. One does some diagnostics, the other does 
not.



My guess that on 773000 and you getting 773002 on the display means that you 
try to boot

from a “device” that is specified in one of the four PROMs, but the PROM socket 
is empty …






Van: cctech  namens John Welch via cctech 

Verzonden: Wednesday, December 13, 2017 7:23:01 PM
Aan: cct...@classiccmp.org
Onderwerp: 11/04 Project

I am back in front of the machine:

The M7856 is set thusly:
 1  2  3  4  5  6  7  8  9 10
-- -- -- -- -- -- -- -- -- -- --
S5 DN DN DN UP DN DN UP DN DN UP
S3 DN DN UP DN UP UP DN UP DN UP
S1 UP UP DN UP DN DN UP UP DN UP
S4 UP UP DN DN UP UP DN DN DN UP
S2 DN DN UP DN DN UP DN DN -- --

The M9312 is set thusly:

 1  2  3  4  5  6  7  8  9 10
-- -- -- -- -- -- -- -- -- -- --
S1 UP UP DN DN DN DN UP DN DN DN

This should be 300, 8, Odd, 1
I have what I think is null modem between the M7856 cable and a PC
running XP with Hyperterm set to 300, 8,O,1

Troubleshooting from the programmers console:
CNTRL plus HALT, no bus hang.

CLR, 777566, LAD, 101, DEP, Hyperterm shows: A
CLR, 777566, LAD, 102, DEP, Hyperterm shows: AB (the B popped up next to
the previous A )


CLR, 777564, LAD, EXAM, display shows: 000200
CLR, 773024, LAD, EXAM, display shows: 165024
CLR, 773024, LAD, EXAM, display shows: 165024
CLR, 773000, LAD, CNTRL plus START, console says: 173002

I am thinking that the Hyperterm should be seeing an "@" and I should be
able to boot from there.

Any thoughts?

Sincerely,
John Welch

RE: LA30 restore complete

[Henk Gooijen via cctalk]

Van: Fritz Mueller via cctalk
Verzonden: zondag 10 december 2017 03:58
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: LA30 restore complete

Got the last replacement components I needed for my LA30 restore today,
and finished it up!  Here's a short video of the LA30 connected as
console to my restored PDP-11/45:

https://www.youtube.com/watch?v=gMIL2bvUYIs

That looks really nice. Thumbs up Fritz.
One question: where did you find paper for this printer.
It is not a “standard” format …

RE: Revive 11/34

[Henk Gooijen via cctalk]

Ahh, that M9203 in slot 9, positions A – B, sounds more familiar (or is it 
M9302?)

The M7856 is often in slot 9 position C – F, when used as console.

Interesting, the 11/04 also has that M7840 installed. Could you pull that board 
(uhmmm, you did), and have a look at the texts in the etch? The “older” boards 
(UNIBUS, and many QBUS too) had a function identificaltion in the etch. Like 
the M7856, which says (IIRC) “SLU & RTC”. Maybe the identification in the Field 
Guide is wrong …



Before powering up the 11/04, I would do a thorough mechanical check of it, as 
many times described here … for example: loose screws in the box (took out my 
11/35 arghh, working on a repair!), cables not properly seated, dust and other 
things that should not be there. Just an overal inspection. You could makes 
notes of where the boards are placed and take a picture. Then remove the boards 
(observe ESD guide lines), turn on the power and check the voltages from the 
regulators. Easiest way to do that is removing the bottom cover.  Then you can 
check the voltages on the connection points at the rear end of the 
backplane(s). If needed, adjust the output voltage(s).

Turn off, and wait (measure!) that all voltages have dropped to near zero. 
Install the boards again, connect a terminal and proceed …



Back to the 11/34A.

I haven’t turned on my 11/34 for some time, so I forgot whether the 7-segment 
display has 6 or 7 digits.

But what I do know is that they are always all 6 (or 7) on. If that is not the 
case, there is definitely something wrong.




Van: cctech  namens John Welch via cctech 

Verzonden: Saturday, December 9, 2017 12:49:01 AM
Aan: Jerry Weiss; cct...@classiccmp.org
Onderwerp: Re: Revive 11/34

I also have an 11/04 that I went and drug out.  It is configured like this:

11/04:
   AAA BBB CCC DDD EEE FFF 
(Rear/Fans/Power Supply) 1 [M7263] (Front/Keypad/DC ON)
 2 [M7847] 
 3 [M7859] 
 4 [M7847] 
 5 GNT 
 6 [M7762] 
 7 [M7840] 
 8 [DILOG] 
 9   {nothing} 
   AAA BBB CCC DDD EEE FFF 
I am thinking I could put a M9203/M7856 into slot 9, and find a M9312
for slot 3 and maybe this would fire up.  Any suggestions?


On 12/8/2017 3:50 PM, Jerry Weiss wrote:
> On Dec 8, 2017, at 2:25 PM, John Welch via cctech  
> wrote:
>> I am reviving an 11/34. Cards are:
>>
>> Back/Fans [M8266]  Front of machine where keypad is.
>>
>>[M8265]
>>
>>[M9312] [M7859]
>>
>>[M7762]
>>
>>[OPEN]  [M7860]
>>
>>[M7840]
>>
>>Bus grant in third from front slot
>>
>>[M9302] [M7856]
>> The 7856 is hooked to a cable/null modem (i think)/PC running 
>> XP
>>
>> When I first powered on the programmers console said '7' and I powered off, 
>> then back on, and now it says '5'
>>
>> Any suggestions as to what to try first?  I may have the bus grant in 
>> backwards.  I have other boards I can try.
>>
>> Sincerely,
>> John Welch
>> :qw
>
> 1) The G727A bus grant card is keyed (somewhat). It should be in Row D 
> (fourth from the back)
>   It won’t seat evenly if reversed. At least that is what my scraped 
> knuckles remember.
>
>   You can temporarily pull it out to finish the check out.  There’s 
> nothing past the
>M7840 that requires DMA.
>
> 2) Check the baud rate, stop bits and parity settings on both the 
> Hyperterminal and the M785 to make sure they match.
>
> 3)  Are you seeing a single 7 or 5 on  KY11-LB Programmer Console or on the 
> Hyperterminal?
>
>   An other status led’s lit on the KY11-LB?
>
> 4) I don’t see any memory listed…  Do you have any M7847’s?
>
> 5) Grab a copy of EK-11034-UG-001 PDP-11-34 System User’s Manual for more 
> info.
>
>
> Jerry
>

--
Sincerely,
John Welch
281-353-4706 Home
713-725-7017 Cell
:qw

RE: Revive 11/34

[Henk Gooijen via cctalk]

AFAICR (…), the M7859 is sort of a UNIBUS device. The (front panel) console 
only communicates with the M7859.

The  M7859 writes/read to/from memory using the UNIBUS. Have a look at the 
schematics of the console.

I cannot remember whether a demux for the displays is on the console PCB, or on 
the M7859.

I also have a few dead M7859’s too. Of one I know that one of the two 4-bit 
memory chips is faulty, the others

I never investigated.



If you get 00 on the dsipaly and when halted it shows 173066 I presume it 
is looping. You can use the

front panel to single step. If it loops, it will repeatedly read from a device 
address which is most likely the

CSR of the boot device. 173066 is an address of the boot PROMs on the M9312.

So, your 11/04 seems fine so far …


Van: cctalk  namens Noel Chiappa via cctalk 

Verzonden: Saturday, December 9, 2017 5:15:18 PM
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: Re: Revive 11/34

> From: John Welch

> Can you give me a refresher on how to tell which slots are cut? I
> remember having to turn the chassis over and looking for a particular
> wire

Yeah; you can use the G7273 as a 'crib', since it has the NPG jumper on it.
That jumper goes from CA1 to CB1: component side, third connector (counting
from the A connector), first and second pins (again counting from the A
connector end). A lot of the slots will still have their jumpers in, which
is how you can confirm you're looking at the right pins; look for slots
without them.


> I also have an 11/04 that I went and drug out.

Yeah, the M7263 is the KD11-D CPU, the M7847's are MS11-E's (one of them will
be useful as a first-stage debug for the 11/34, once you've verified, in the
-11/04, that they work - the M7891 MS11-L is rare and valuable, I'd rather not
use that until everything up to that point in the -11/34 is known working -
you could try pulling the two M7847's from the -11/04 and try plugging in the
M7891, to verify that it's sort of OK).

> I am thinking I could put a M9203/M7856 into slot 9, and find a M9312
> for slot 3 and maybe this would fire up. Any suggestions?

As always, first pull all the boards and check the power supply (if it's been
a long time since it was last powered on, re-form the electrolytics in the
power supply first, before powering it on), then put in the _minimal_ set of
boards and get those working.


> I added an M9302 in Slot9-AB and then moved the M7856 from the 11/34 to
> Slot9-CDEF of the 11/04. I put a random M9312 in Slot3-AB I turned on
> the 11/04.
> I have six '0' digits. I push ctrl+hlt and the display shows 173066.
> Looks like things are moving.

Yup, that's working. Now you have a working machine, you can board-swap in
from the -11/34 to check other boards out. Major, major help!!

The first thing I'd try would be the M7859, KY11-LB, from the -11/34 over
here. If it doesn't work in the -11/04 (with only that board changed), i)
you've isolated the problem, and ii) you can probably use the one from the
-11/04 to get the -11/34 working (unless there's something _else_ broken in
the -11/34 as well).

NOTE: Don't plug the good one from the -11/04 into the -11/34 - or do
anything else with the -11/34 - until you've checked the voltages in the
-11/34!!!

If the M7859, KY11-LB from the -11/34 _does_ work in the -11/04, time to keep
looking. The console itself is so dumb it's unlikely to be the problem, but
you never know; might we worth swapping. I'm having a hard time seeing what
problems in the /34 CPU, etc could cause the symptoms you're seeing - are
they still there with only the absolute minimal board set?

Noel

RE: Revive 11/34

[Henk Gooijen via cctalk]

Van: John Welch via cctech
Verzonden: vrijdag 8 december 2017 21:25
Aan: cct...@classiccmp.org
Onderwerp: Revive 11/34

I am reviving an 11/34. Cards are:

Back/Fans [M8266]  Front of machine where keypad is.

   [M8265]

   [M9312] [M7859]

   [M7762]

   [OPEN]  [M7860]

   [M7840]

   Bus grant in third from front slot

   [M9302] [M7856]
The 7856 is hooked to a cable/null modem (i think)/PC running
XP

When I first powered on the programmers console said '7' and I powered
off, then back on, and now it says '5'

Any suggestions as to what to try first?  I may have the bus grant in
backwards.  I have other boards I can try.

Sincerely,
John Welch
:qw


It is not completely clear (to me) how the modules are installed in the
backplane. Standing in front of the 11/34 processor box (looking at the
console), slot number 1 is at the right side. Each slot has 6 positions.
Position A is at the rear side, followed by B thru F. Position F is
thus at the front side.
There is no confusion about the first 4 slots.

Slot 1 and 2 hold the 11/34A processor boards, with M8266 in slot 1,
and M8265 in slot 2.
Slot 3, positions A and B has the M9312 bootstrap/terminator board,
and slot3, positions C thru F has the M7859 KY11-LB programmer's console
interface board.
Slot 4 holds the RL11 interface. This module does "DMA", so the NPR
jumper must be cut (open) on the backplane.
Slot 5 has an SPC in positions C thru F. I had to look it up; it is the
DR11-C.

We are up to slot 6. Now things get "interesting" ... is that M7840 a typo?
The field guide says that this is a KE11-B Extended Arithmetic Element.
I do not know that board, is it "hex" or "quad"?
Not sure that board belongs there ... and if it is quad, I assume it has
to be in positions C thru F. I would suggest to pull this module, and
check the NPR wire presence on the backplane. You need a G727A or G7273
in this slot when the M7840 is removed.

If you are not skipping slots (see below), we are now at slot 7. There
is probably a G727A grant continuity card (aka "knockle buster") in
position D. That would be OK, but if the NPR jumper is cut on the
backplane, you would need a G7273 continuity and NPR card in positions
C - D. It is easy to have the G727 put in wrong. The 4 copper "jumper"
traces should be facing the next higher-numbered slot.

Then you say that the next slot has the M9202 (in position A - B) and
the M7856 (SLU and RTC) in positions C thru F.
The M9202 connects two system units (backplanes). So, what is the next
backplane?  Or do you have the M9202 in slot 8 and slot 9, positions
A - B?  I have never seen that ...

I am missing one slot. The 11/34 backplane has 9 slots.

When you power up the system, the display should show 6 octal numbers.
If only one digit shows a number (7 or 5 or whatever), there is an
issue with the console itself, or the M7859. The 6 digits of the display
are multiplexed. Maybe the connection cable between the console and the
M7859 - damaged/knicked? It is worth checking out the simpler things first.

Henk.

RE: Playing with HP2640B

[Henk Gooijen via cctalk]

Van: Mattis Lind via cctalk
Verzonden: vrijdag 17 november 2017 11:52
Aan: David Collins; General Discussion: 
On-Topic and Off-Topic Posts
Onderwerp: Re: Playing with HP2640B

The screen on my HP2640 had degenerated quite far. It was only a spot in
the middle, 2 by 4 inch, that still attached the glass to the CRT. I used a
thin fish fillet knife to dig through the remaining glue.

Before

https://scontent-arn2-1.xx.fbcdn.net/v/t1.0-9/23622163_10155696765784985_6518064439030378363_n.jpg?oh=44cbf7f7f00d6e25155c208124e20a38=5AA7349D

The result after:

https://scontent-arn2-1.xx.fbcdn.net/v/t1.0-9/23621971_10155696757184985_1959733265676657917_n.jpg?oh=36a20689c0fb5a16de7fc4df138a40e0=5A9993B1


Anyhow, I researched the glue a bit. The glue is, as far as I understand,
PVAc (PolyVinylAcetate, sometimes also known as PVA). PVAc is not soluble
in water. It takes quite high temperature to melt it. However PVAc is
soluble in many esters. I bought some Butylacetate. It dissolves sample
bits of glue from HP2640 quite well and rapidly. Butylacetate has quite
high boiling temperature (about 120 degrees centigrade) and thus does not
evaporate that quickly. So my idea is now to test on a 2645 screen or VR201
screen by adding some butylacetate and seal with some thin plastic wrap
foil and let it dissolve a bit. Then use the fish fillet knife again and
repeat the process.

/Mattis


Wow!  Excellent job Mattis  
I have seen that HP2640 when it still was in bad shape. The HP2640,
that I have, has many tiny spots on the screen. Your “result after”
really looks fantastic.
What’s not clear to me, after removing the old “protection” sheet, did
you apply some new “protection” sheet, or leave the tube “as-is” ?
I doubt whether that “protection” sheet would really help much if
the tube would implode (for whatever miraculous reason) …

Henk

RE: RL02 Spinup fails

[Henk Gooijen via cctalk]

Van: Aaron Jackson via cctalk
Verzonden: maandag 6 november 2017 19:15
Aan: cct...@classiccmp.org
Onderwerp: RL02 Spinup fails

Hi everyone,

I have managed to hook up an RL02 drive to my PDP-11 (thanks to Dave
Wade for the drives) . This took me longer than I thought it would - I
tried with a flat ribbon cable with a DIY terminator going straight into
board , but couldn't get it to work. Removed the terminator, and the
fault light turned off. So that's positive.

I tried to load a cartridge, which I had cleaned, inspected and
generally appears to be in good condition. It started to spin up and I
could hear it getting faster, but after 30-40 seconds the fault light
returns. I made a short video demonstrating this:

 https://www.youtube.com/watch?v=japwBBodO8U

According to the manual the fault light can appear for the following
reasons:

- Drive select error... Surely this would come on at the start?
- Seek time out error... I'd have to hear the heads move first
- Write current in heads during sector time error... Same as above
- Loss of system clock... The fault light would be on from the start.
- Write protect error... I don't think it got that far
- Write data error... Same as above
- Spin error... Is this the only remaining fault?

So could the only cause be a spin error? I am wondering if the belt is
slipping or something like that?

Can anyone offer some advice?

Thanks,

Aaron.

I saw the video.
It seems that the motor runs and the disk spins up.
As Tony suggests, check the possible fault sources.
One obvious fault: is the head still locked? That’s the small
metal plate fixed with one screw in the top right corner (IIRC).

Long ago, I tried to run RK07 drives of the RK611 controller
using a flat cable (not shielded), length 1 meter. The XXDP diags
gave all sorts of errors that went away after I found the correct
(shielded) cable BCxx.

You are correct, the fault light will go on immediately when the
drive is no connected to the controller. I *think* READY should
come up even when no terminator is installed.

One other possible fault. Are you sure the RL02 disk pack is OK?
If it has been wiped with a magnet, it has become useless as a
disk pack, but maybe useful for a “wall clock platter”. READY will
never light up, and possibly there is a time out.
Not sure you can *hear* the head (carriage) move though …

RE: HP 7970E - interest to split?

[Henk Gooijen via cctalk]

Van: Anders Nelson via cctalk
Verzonden: vrijdag 29 september 2017 05:57
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: HP 7970E - interest to split?

Update: I bought the Kennedy 9800 as it pushed all my buttons at once.

Now I'm looking for 8" mag tapes/reels that will fit! Anyone know where I
can find these, maybe 3pcs? I could laser-cut some frosted acrylic or
machine some frosted polycarbonate I suppose but I'd rather just buy it,
plus that would include a dust cover.

On a related note my plan is to make a USB-based, Pertec-compatible
controller for it. Not sure how SimH connects with peripherals so I'm
/very/ eager to talk with someone familiar with its workings. I'll also
release all the board files and firmware as open-source. Timeline as always
is completely unknown, though I do have a now-vested interest in making it
work.

Be well!

Looking forward to see that controller “materialize”.

I could -give- you 3 8” mag tapes with (manual) sealing ring, but the
catch is, I am in the Netherlands.  Don’t know what shipping cost
would be, but my guess is between $25 - $35.
If you cannot get the 8” tapes over there, this might be an option.

I saw the 9800 auction briefly. Nice looking unit!  From memory, the
tape reel has the same size as fitting on the TS03?  I will measure the
reel dimensions tomorrow to make sure that they are 8”. I have open
reel tapes in 2 sizes, so probably it is 10.5” and 8”, although ISTR that
the size was 7”.

Henk

RE: HP 7970E - interest to split?

[Henk Gooijen via cctalk]

Van: Steve Malikoff via cctalk
Verzonden: vrijdag 29 september 2017 09:26
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: HP 7970E - interest to split?

On my Kennedy 9000s the rubber O-rings have expanded on all the spindles and a
reel has a lot of trouble being pushed on and removed. I plan to replace them 
with
neoprene O-rings of the original size. These are readily available and cheap 
from
bearing supplies stores, I'll get a range of close sizes and find the right one.

Steve.

I have read that putting the rubber rings in warm water
will make them shrink to their orginal sze, but keep their
Specifications. Worth a try …

RE: DEC H9xx rack parts needed

[Henk Gooijen via cctalk]

Van: Noel Chiappa via cctalk
Verzonden: zaterdag 16 september 2017 15:52
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: Re: DEC H9xx rack parts needed

> does anyone have any spare "pivot bushings" for the DEC H9xx series
> cabinets (H950, H960, etc)? (These are the short pieces with a conical
> top which fit over the hinge pins, at the bottom.)
> ...
> I could also use some more of the pins (particularly the kind with the
> hole drilled through them to take a roll pin)

Someone asked for an image of these; here:

  http://ana-3.lcs.mit.edu/~jnc/tech/jpg/H9xxPinBushing.jpg

is one. The pin in the picture is the kind without the hole at one end, but
they are otherwise identical. (Ignore the retaining ring on the pin; those
are easy to get, my local hardware store has them.)

Noel


Got the pivot bushing here in front of me, it’s yours.
I am pretty sure I have one or two pins *with* a hole at one end,
but I remember they are not perfectly straight. You will have to
hammer them a bit to straighten them.
I will check whether I can find those two pins, and send them
to you in a “bubble envelop” marked as “old metal pivot parts”.

Greetz,
Henk

RE: DEC H9xx rack parts needed

[Henk Gooijen via cctalk]

Van: Noel Chiappa via cctalk
Verzonden: zaterdag 16 september 2017 01:04
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: DEC H9xx rack parts needed

Hi, does anyone have any spare "pivot bushings" for the DEC H9xx series
cabinets (H950, H960, etc)? (These are the short pieces with a conical top
which fit over the hinge pins, at the bottom.) I need at least one to hang a
back door which I have.

If nobody has any, they'd be easy to machine, so I might look into having a
run made by some local machinists.  (I do have a lathe, but have little lathe
experience, so machining one of those myself is probably out of my range.)  If
it's someone with a CNC lathe/etc, I could probably get more made for little
more than materials cost. If none turn up in response to this, I'll ask on the
list about interest before I set off to find a machinist.

I could also use some more of the pins (particularly the kind with the hole
drilled through them to take a roll pin), if anyone has any of those spare.

Thanks!

Noel

Hi Noel,
I am going to my “museum” this afternoon, and will check.
I am prety sure, I can help (and return a favor)  

Greetz,
Henk

RE: Seeking VT180 floppy drive connection cable BC26K

[Henk Gooijen via cctalk]

Van: Henk Gooijen via cctalk<mailto:cctalk@classiccmp.org>
Verzonden: zaterdag 9 september 2017 06:55
Aan: General Discussion: On-Topic Posts<mailto:cct...@classiccmp.org>
Onderwerp: Seeking VT180 floppy drive connection cable BC26K

Hi list readers,

I have a VT180 and two dual 5.25” floppy drive units.
I am not planning on connecting both drive boxes, just one.
From documentation, I understand that you need one BC26K
cable to connect the VT180 to the (first) floppy drive unit.

The cable is shielded and has at both ends a 37-pin sub-D connector.

First question.
Is the pin-out 1:1, that is pin #1 -> pin #1, pin #2 -> pin #2, etc.?

Second question.
If the pin-out is 1:1, then if I place the floppy drive unit on top of
the VT180, could I get away with a simple short 37-wire flat cable?
All even pins are IIRC “ground”, so crosstalk would be minimal.

Third question.
Does anybody have a BC26K for sale?
The original cable is of course the nicest option 

Thanks,
Henk
Update!!
I looked at my VT180 and the floppy drive box, and have to make
corrections to my earlier post.   The connector on the VT180 is a
37-pin sub-D, but the connector on the floppy drive unit is a DB-25!
So a 1:1 flatcable surely is not correct.
In EK-VT18X-TM-001 on page 3-37 is a table with the pins and
signals of the 37-pin sub-D.  An other correction: the *odd* pins are
connected to ground.

Finally, after google searching, I found Will Kranz’s
http://www.willsworks.net/pdp-11/vt1xx#VT180 page.
It lists the interconnection as follows.

I only show existing pins below, many slots were blank on both

ie db37: 1-5, 7,11,13,15,17,   |  db25  14,17-19

 29,32,33,35-37|



db37  db25

6   1

82

9  15

10  3

12  4

14  5

16  6

18  7

19 20

20  8

21 21

22  9

23 22

24 10

25 23

26 11

27 24

28 12

30 25

31 13

34 16

If somebody has the BC26K cable, could you check/verify these connections?
Then I can make my own connection cable and start CP/M on the VT180 …
Thanks,
Henk

Seeking VT180 floppy drive connection cable BC26K

[Henk Gooijen via cctalk]

Hi list readers,

I have a VT180 and two dual 5.25” floppy drive units.
I am not planning on connecting both drive boxes, just one.
From documentation, I understand that you need one BC26K
cable to connect the VT180 to the (first) floppy drive unit.

The cable is shielded and has at both ends a 37-pin sub-D connector.

First question.
Is the pin-out 1:1, that is pin #1 -> pin #1, pin #2 -> pin #2, etc.?

Second question.
If the pin-out is 1:1, then if I place the floppy drive unit on top of
the VT180, could I get away with a simple short 37-wire flat cable?
All even pins are IIRC “ground”, so crosstalk would be minimal.

Third question.
Does anybody have a BC26K for sale?
The original cable is of course the nicest option 

Thanks,
Henk

RE: Bridge Communication Unibus Ethernet board?

[Henk Gooijen via cctalk]

Van: Mattis Lind via cctalk
Verzonden: dinsdag 29 augustus 2017 20:29
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Bridge Communication Unibus Ethernet board?

Does anyone have more info about this (dusty) board:

http://forum.datormuseum.se/data/87681DD5-B816-494C-AA4C-D8DB3FA35406/F7AD48D3-5450-4860-A0C9-23CB7277AC91.jpg

Plenty of onboard memory just for packet buffering?

/Mattis


Never seen before.
Is there an “M” nummber on the board or on a handle?

As the DELUA uses the M68000 and this board apparently too,
but with *two* headers (DELUA has one), a network bridge is
plausible. Is “Bridge Communication Unibus Ethernet” in the etch?

RE: Anyone need an M7389 card (for an LA30)?

[Henk Gooijen via cctalk]

Van: Mattis Lind via cctalk
Verzonden: zondag 20 augustus 2017 07:10
Aan: Fritz Mueller; General Discussion: On-Topic and 
Off-Topic Posts
Onderwerp: Re: Anyone need an M7389 card (for an LA30)?

lördag 19 augusti 2017 skrev Fritz Mueller via cctalk :
> On 08/17/2017 12:54 PM, Noel Chiappa via cctalk wrote:
>
>> Anyone out there have an LA30? :-)
>
> For future reference, I am also working on an LA30 at the moment.  I think
> Mattis has restored one as well?

Yes. That's right. Have a LA30P with a LC11. BTW. I have LC11 manual and
drawings. But they are for the older M791. At least a bit helpful. Not
scanned yet.

> Mine is a P, and I have the matching M7910 to go with it, so no need for
> an M7389 here (sounds like Henk really wanted it anyway!

Henk got my second LA30. But one need a M7731 board as well to make it
serial. The M7389 alone is not enough unfortunately.



Yup, and I still am very happy that I decided to drive in total some
3200 km “just” to pick up one LA30. It was worth the long trip
and stay in 3 hotels, because Mattis also gave me a tour along his
collection. Fantastic  and very cool things I had never seen before !

Good to know that I need to look out for an other board! I quickly
responded to Noel’s offer, without knowing that I needed yet an
other module. But if I had skipped Noel’s offer and found the M7731
(in the future) then I would have the “problem” of the missing M7389 …
Collecting is a matter of time and patience. There is no joy in getting
everything “overnight”.

Henk

RE: RX01 and RL01 on same UNIBUS system

[Henk Gooijen via cctalk]

Van: william degnan via cctech
Verzonden: donderdag 17 augustus 2017 22:49
Aan: cctech
Onderwerp: RX01 and RL01 on same UNIBUS system

Just curious,
Is there anyone out there with a combo RX01 and RL01 on the same UNIBUS
system, today?  Are there any known issues?

I found a large box of RX01 disks, lucky me.  Working to get the RX01 drive
running, experimenting.  My particular PDP 11 does not like it (11/40) but
I think the drive is faulty, at least so far.  Much work to do.

Bill


I have an 11/40 with RX02 and RL02.
I may be wrong, but perhaps the RX01 UNIBUS interface module
has no NPR passing on its contact fingers. So, if you put the RX01
interface module in a slot that was occupied by a “DMA capable”
device or the G7273 grant continuity card, you may have to add a
wire on the backplane (CA1-CB1 IIRC).

Henk

RE: Anyone need an M7389 card (for an LA30)?

[Henk Gooijen via cctalk]

Van: Noel Chiappa via cctalk
Verzonden: donderdag 17 augustus 2017 21:54
Aan: cctalk@classiccmp.org
CC: j...@mercury.lcs.mit.edu
Onderwerp: Anyone need an M7389 card (for an LA30)?

Hi, all, just got one of these in a group of stuff, and I have no LA30, and
thus no need for it. Anyone out there have an LA30? :-)

 Noel


I would love to get my hands on this interface.
Email sent  

Henk

RE: Sperry UTS 40 on Ebay - Statesboro, Georgia

[Henk Gooijen via cctalk]

This sure brings back good memories!
I worked on a Sperry 1100/60 with 3 CPUs, thus an “1163”, for several years.
I was a maintainer of EXEC, MAPPER, etc, and we tested the new software
versions (fixes!) on Saturday (during the week we needed 100% up time).
I always got a thrill out of typing $! on the system console, and seeing the
boot tape being read  

So, I have countless hours sitting behind an UTS40 in the office at my desk.
I knew most of the commands (starting with @) plus the options by heart,
like @asg,t to allocate a temporary file, @use to give it a “name”, etc.
AFAIK, the UTS40 does not have a “standard” connection on it, like RS-232.
But I could be wrong.
At the office they were connected to a comms concentrator, a DCP/40.

Note that the auction does not show the UTS very specific keyboard !!

Dominique, if you ever want to get rid of your UTS40 setup and like to
“donate” it to a good “retirement home”, let me know 
(www.pdp-11.nl ).
I also have a sweet spot for SPERRY … I am not sure what I would do if I got
an offer to *haul* an 1100 system, including a few UNIservo tape drives.
However, you also need an SSP and EXEC (the propriatary OS), FURPUR
and at least MASM-1100. Loved to program is assembler, but that’s an
other story …
Ah well … keep on dreaming 

Thanks for the memories,
Henk

RE: DEC manuals.

[Henk Gooijen via cctalk]

Hi Mattis,

I do not know how many people have this unit, but I have one.
It is far down the list, but I would be happy if this would be scanned.

Terminal

DEC-00-HRT2A-C-D

RT02-A 30 character keyboard remote terminal maintenance manual


The unit that I have is not working. I do not expect repair to be very 
complicated,
but you never know, so a manual would be very helpful.
No hurry!

Thanks,
Henk

PS. You know of the (TIF) scans at maincoon 
http://www.mainecoon.com/classiccmp/ ?


Van: Mattis Lind via cctalk
Verzonden: zondag 18 juni 2017 15:00
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: DEC manuals.

I have gone through a small portion of the library of various DEC
documentation we have in store. I have listed 62 documents. I tried to
search for their IDs online through the manx-docs.org search tool and
thereby put a found or not found in the MANX online column.

I am not entirely sure that manx-docs.org search engine is up-to-date so I
also checked the Ids with google and got yet some hits on Bitsavers and
Vaxhaven.

Since it is not a fun task to scan manuals that already have been done I
ask people searching for DEC documentation to check if there is something
worth scanning or at least help me set some kind of priority list.

http://www.datormuseum.se/documentation-software/dec-documentation

/Mattis

RE: Atari ST SCSI hard drive question

[Henk Gooijen via cctalk]

Van: Win Heagy via cctech
Verzonden: donderdag 25 mei 2017 02:12
Aan: cct...@classiccmp.org
Onderwerp: Atari ST SCSI hard drive question

I have an Atari 1040ST that I picked up some time back.  It is very clean
and for the most part appears to work.  It has what appears to be some kind
of generic SCSI hard drive (no markings except a serial number on the back)
as well as a DMA/SCSI adapter.  The computer will boot to GEM/TOS with or
without a floppy, but I can't seem to get the HD to do much.  The HD powers
up and spins/clicks like you'd expect, but after that, I get nothing on the
desktop.  I tried different SCSI device number settings as well as moving
the SCSI plug to each of the two plugs on the drive.  It did not have a
SCSI terminator with it, but I picked one up...made no difference.

I know very little about STs, so am learning as I go.  I'm guessing that
maybe there should be a driver for the HD?  The machine came with software,
but I don't see anything that looks like an HD driver disk.  It has two
slightly different language disks and will boot each of them successfully,
but the HD does not show up.  Is anyone familiar with this particular drive
and can possibly point me in the right direction?

https://imgur.com/a/pxMxl

The adapter on top is a male to female adapter.  Not sure what that was
for.  The SCSI terminator is plugged in the back below the DMA/SCSI adapter.

Thanks...Win
whe...@gmail.com


It’s been a lng while. Very long ago I bought an ASCI adapter with
52 MB hard disk and installed it inside the Mega 1. I still have it, but
haven’t used it in years.
Together with the hardware came a driver, to make it boot from HD.
I vaguely remember that when the Atari was booted, the HD was still
spinning up, thus not accessible.
What you can try: power up the Atari, wait say 10-15 seconds to let
the HD spin up, then push the little reset button at the back.
Maybe it then boots from the HD … if something is on the HD.

RE: KDF 8189 processor board foobared (ebay warning)

[Henk Gooijen via cctalk]

Van: jim stephens via cctalk
Verzonden: zaterdag 20 mei 2017 23:59
Aan: allison; General Discussion: On-Topic 
and Off-Topic Posts
Onderwerp: Re: KDF 8189 processor board foobared (ebay warning)



On 5/20/2017 7:01 AM, allison via cctalk wrote:
> Argh,  CPU chips used on dec board loose value as the complete board
> carries the value.
>
> KDF with the second chip is useful but the logic needed to may a "CPU"
> of the raw chips is not trivial.
That was what I figured.  Hopefully the lister will put the two back
together, but has not done so for now.  he did bring down the price per
my suggestion he had messed up the value by pulling the chip.
> Best chip for hacking and useful off a board (Falcon, KXT11, RQDX,
> others) is the T11.  Its easily
> useful like a 8085 or Z80.
I've got two boards with T-11's very nice.  The T-11's listed right now
were higher in cost than the KDJ processor I have, and I have a full
page archived with the project to bring it up.  Just seemed like an
interesting project for sometime.

Thanks
Jim


Pete McCollum did a project based on the T11. It is a small PCB
with less than 10 ICs. He implemented a Forth environment on it.
I joined that project, but have not done anything with the hardware
till now  ☹   That will change when I retire in 7 years (haha) . . .

QIX game on PDP-11

[Henk Gooijen via cctalk]

Hi PDP-11 game players 

I found that the famous QIX game was ported to the PDP-11 !!
See http://imgur.com/a/gtPfh
Back in the days, I spend quite a few Guilders on this addictive game.

Does anybody have a lead to the software? That would be awesome!

Thanks,
Henk

RE: eBay: PDP-11/70 backplane?

[Henk Gooijen via cctalk]

Van: Pontus Pihlgren via cctalk
Verzonden: donderdag 23 maart 2017 21:27
Aan: Noel Chiappa; General Discussion: 
On-Topic and Off-Topic Posts
Onderwerp: Re: eBay: PDP-11/70 backplane?

On Thu, Mar 23, 2017 at 04:19:01PM -0400, Noel Chiappa via cctalk wrote:
> This:
>
>   http://www.ebay.com/itm/252820125010
>
> looks like it might be an -11/70 backplane, but I'm too lazy to look up the
> part number.
>
>  Noel


The 11/70 backplane is wirewrapped. If that is an 11/70 backplane.. it
requires some work :)

/P


AFAIK, the 11/70 backplane is about that size, but it consists of *two*
separate backplanes with lots of fragile wiring between the 2 halves.
Further, I am “missing” a few MOLEX connectors on the top side.
My guess, this is NOT an 11/70 backplane – but what it is …?

RE: VT52 keyboard question

[Henk Gooijen via cctalk]

Van: Marc Howard via cctech
Verzonden: maandag 13 maart 2017 21:45
Aan: General Discussion: On-Topic Posts Only
Onderwerp: VT52 keyboard question

Hi,

The "2" key on my VT52 is very hard to use.  You've gotta pound it and you
might get 2 "2"s for your trouble.

I assume that the keyboard switch is made of unobtanium (If you know of a
substitute chime in) so I'm thinking of swapping it for the "COPY" key
which I guess is useless unless you have the built-in thermal printer.

1. Do you simply pull the keyboard button off the switch or is there a
trick involved?

2. Any other gotcha's?

Thanks,
Marc


My guess is that the VT52, VT55, VT05 and LA30 are identical.
The key fits snug on a plastic white pin, shaped as a “+”.
Over the plastic pin is a small spring. If the spring is not installed,
the pin will simply “fall down” due to gravity, causing a continuous
“key pressed” signal.
You can (gently) pull the key cap.
If the pin does not “fall down”, you have the reason why it is
hard to use: dirt or dust.
Henk, PA8PDP

RE: DEC VT30-H and VTV30-J, was VSV11

[Henk Gooijen via cctalk]

Van: E. Groenenberg
Verzonden: vrijdag 3 maart 2017 14:30
Aan: Henk Gooijen; General Discussion: 
On-Topic and Off-Topic Posts
Onderwerp: RE: DEC VT30-H and VTV30-J, was VSV11

Henk,

Your '' high speed lineprinter is most likely a Dataproducts
Model 2230 (a.k.a Dec LP05).

Regards,

Ed
--
Ik email, dus ik besta.
BTC : 1Lk6141nvDKPxtCa5erfFyovsoJN2LKqNJ

Thanks!
I had no information at all, so this is a good start!
A quick google search turned up one picture that matches the printer,
and the web page says that the LP05 was indeed made by Dataproducts.
More google fu later 

RE: DEC VT30-H and VTV30-J, was VSV11

[Henk Gooijen via cctalk]

Oops, typo ☹   I missed one folder. The correct links are

www.pdp-11.nl/peripherals/comm/interface/vsv11/vsv11-info.html
www.pdp-11.nl/peripherals/comm/interface/vt30h/vt30h-info.html

While “promoting”, I also added a page for the RP03
www.pdp-11.nl/peripherals/disk/rp11-rp03/rp11-rp03.html
It will be some time before pictures of the system and more info will land here.
I am re-organizing my 2250 square feet … but not yet clear how everything
will be placed.


Van: Paul Birkel
Verzonden: vrijdag 3 maart 2017 11:45
Aan: 'Henk Gooijen'
Onderwerp: RE: DEC VT30-H and VTV30-J, was VSV11

Henk:  In case you haven't noticed, neither of those URLs are yet active
:-<.  To Your Good Health!

-Original Message-
From: cctech [mailto:cctech-boun...@classiccmp.org] On Behalf Of Henk
Gooijen via cctech
Sent: Thursday, March 02, 2017 3:58 PM
To: shad; General Discussion: On-Topic Posts
Subject: RE: DEC VT30-H and VTV30-J, was VSV11


Well, I did scribble a bit about the VT30 and VSV11 on my website .
Check out
www.pdp-11.nl/peripherals/comm/vsv11/vsv11-info.html
www.pdp-11.nl/peripherals/comm/vt30h/vt30h-info.html


Van: shad via cctech
Verzonden: donderdag 2 maart 2017 19:12
Aan: cct...@classiccmp.org
Onderwerp: Re: DEC VT30-H and VTV30-J, was VSV11

Well, it would be a very nice thing to put the hands on a copy of such
manual! :)
Given that I didn't find ANY information on Google about these boards,
except for the bare description in the PDP11 field guide, it would be very
nice to archive a copy on bitsavers too...
If you manage to find something, please let me know
thanks
Andrea


>I've got a photocopied user's manual in this mess somewhere (used for the
"VR:" VT30 emulation in E11).

RE: DEC VT30-H and VTV30-J, was VSV11

[Henk Gooijen via cctalk]

Well, I did scribble a bit about the VT30 and VSV11 on my website …
Check out
www.pdp-11.nl/peripherals/comm/vsv11/vsv11-info.html
www.pdp-11.nl/peripherals/comm/vt30h/vt30h-info.html


Van: shad via cctech
Verzonden: donderdag 2 maart 2017 19:12
Aan: cct...@classiccmp.org
Onderwerp: Re: DEC VT30-H and VTV30-J, was VSV11

Well, it would be a very nice thing to put the hands on a copy of such
manual! :)
Given that I didn't find ANY information on Google about these boards,
except for the bare description in the PDP11 field guide, it would be very
nice to archive a copy on bitsavers too...
If you manage to find something, please let me know
thanks
Andrea


>I've got a photocopied user's manual in this mess somewhere (used for the
"VR:" VT30 emulation in E11).

RE: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

[Henk Gooijen via cctalk]

I have heard that story to. _IF_ you have WCS for the 11/60 ... not very common.
But even with WCS installed, there is a “small” problem: the PDP-8 microcode
for the 11/60 is lost ☹

From my website:
The only other PDP-11 that has a WCS option (KUV11, M8018) is the PDP-11/03, 
KD11-F processor. Ritchie Lary wrote the micro-code for the PDP-11/60 to 
emulate the PDP-8 instruction set, making it the "fastest PDP-8 ever".
It is a pity that the source code seems to be lost. Even Ritchie Lary, the 
author, no longer had the source when Eric Smith inquired some years back 
(~2011 - 2012), and Ritchie did not think that anyone else was likely to have 
it. So, it appears to be lost forever.

I love to hear whether somebody has that source code!
But then, I lack the tools to compile that. IIRC, you need a microcode compiler 
and some other tool …


Van: Ian S. King via cctalk
Verzonden: woensdag 1 maart 2017 03:51
Aan: Ethan Dicks; General Discussion: On-Topic 
and Off-Topic Posts
Onderwerp: Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI


PDP-11/60 - the fastest PDP-8 ever built!  :-)

--
Ian S. King, MSIS, MSCS, Ph.D. Candidate
The Information School 
Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical
Narrative Through a Design Lens

Archivist, Voices From the Rwanda Tribunal 
Value Sensitive Design Research Lab 

University of Washington

There is an old Vulcan saying: "Only Nixon could go to China."