Re: cctalk Digest, Vol 26, Issue 29

[Anders Nelson]

Hey Rob (and anyone else sniffing signals),

I've been using a USB logic analyzer from Saleae (https://www.saleae.com/)
for years now and the software is really good. Way cheaper than a
standalone unit. I'm unsure if the inputs can handle more than 5v but you
could throw a divider network in front and try it.

Also there's the Digilent Analog Discovery (
https://www.sparkfun.com/products/13929) which does the same stuff but I
can't vouch for the software as I've never used it. Inputs can handle
+/-20v apparently.

=]

--
Anders Nelson

+1 (517) 775-6129

www.erogear.com


> -- Forwarded message --
> From: Rob Jarratt 
> To: "'Paul Koning'" , ,
> "'General Discussion: On-Topic and Off-Topic Posts'" <
> cctalk@classiccmp.org>
> Cc:
> Date: Mon, 29 Aug 2016 17:33:56 +0100
> Subject: RE: DEC Pro 350/380 Memory Cards - Interchangeability?
>
>
> > -Original Message-
> > From: Paul Koning [mailto:paulkon...@comcast.net]
> > Sent: 29 August 2016 15:08
> > To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts
> > 
> > Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?
> >
> >
> > > On Aug 28, 2016, at 5:11 PM, Rob Jarratt 
> > wrote:
> > >
> > > I have a 350 and 380. Neither work. The 380 is reporting a possible
> > > memory error on the LEDs. Will the 350's memory work in a 380 (or vice
> > versa)?
> >
> > The 380 has memory on the motherboard, and a model-specific
> > daughtercard for expansion memory.
> >
> > It seems reasonable that the Pro bus (I/O card) expansion memory should
> > work in both models, but I don't have any to try that.
> >
> > If you have a 380 complaining about memory and it has a Pro bus memory
> > card installed, I'd suggest removing that card to see if it's happy with
> just the
> > stock motherboard memory.
> >
> >   paul
>
> Just reading your reply again. Are you saying it has enough memory on the
> board, without using a daughter board? I did see lots of memory on the main
> board, but assumed it was video memory. I did try removing the daughter
> board altogether at one point, but it still didn't work. :-(
>
> I wish I had a logic analyser.
>
> Regards
>
> Rob
>

CHM

[Dave Wade]

Folks,
 
I am going to be in San Francisco in a few weeks' time, but only for about a
day and half. I could spare 2 hours at CHM but is it worth dragging myself
up there on a Sunday when there are no working exhibits, and I will only
have two hours.
 
Dave.

Re: AT 3b2, IBM RT, others

[Chris Hanson]

They should really part it out, they could probably make more money and it 
would be more likely to find a home.

Like that person in Denver, who waited until the last minute when he had to 
empty his rental space and had an “Everything must go!!!” sale on his Macs — he 
should’ve been putting them up on eBay for 3-6 months in advance of that, and 
just moving them out, he’d have at least paid for his time and found them good 
homes.

  -- Chris

> On Aug 28, 2016, at 6:54 PM, Doug Fields  wrote:
> 
> http://www.ebay.com/itm/112102162849
> 
> Looks like someone bought it all and is trying to resell the stuff I posted 
> about earlier this month. The original seller asked for $1200 for the lot of 
> it.
> 
> Cheers,
> 
> Doug
> 
>> On Aug 6, 2016, at 5:16 PM, Doug F  wrote:
>> 
>> The woman didn't seem to be interested in shipping, Ken. I posted her 
>> information online earlier so you can contact her directly. One of the other 
>> list members is in Austin and may be able to assist, however. Check the 
>> recent archives. :)
>> 
>> Cheers,
>> 
>> Doug
>> 
>>> On Aug 5, 2016, at 10:03 PM, Ken Seefried  wrote:
>>> 
>>> I'd really like the AT 4425 terminal, which doesn't seem to have
>>> been claimed.  I spent a couple of years with one on my desk.  Any
>>> chance they'd ship?
>>> 
>>> My wife and I have an agreement that if I bring home any more VME kit
>>> I have to get rid of an equivalent tonnage of other things.  So unless
>>> that Motorola tower is an 88200 or something suitable esoteric, I
>>> probably need to pass.
>>> 
>>> The E box looks like a Sun 3/110 or 4/110 with additional boards.
>>> I'd love to have one.
>>> 
>>> Obviously, I would have killed for the Explorer or the RTs.  Double
>>> kill for the 5620.  Good they've found homes.
>>> 
>>> KJ
>> 
>> 
> 

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

[shadoooo]

Hello Rob,

I think I found a link:

http://vaxhaven.com/images/a/a7/EK-PC380-PS-003.pdf

Andrea

Re: CHM

[Vincent Slyngstad]

From: Dave Wade: Monday, August 29, 2016 12:11 PM

I am going to be in San Francisco in a few weeks' time, but only for about a
day and half. I could spare 2 hours at CHM but is it worth dragging myself
up there on a Sunday when there are no working exhibits, and I will only
have two hours.


My wife and I quite enjoyed our visit, the day before VCFW.  We spent more
like 6 hours on it, though.

Realistically, in two hours (or even 6), you won't have time to notice things
aren't actually running.

Heck, if you can get there for the PDP-1 demo, that is working, and will pretty
much sink your 2 hours.  (It is awesome.  The 1401 demo is nice, too, but not
as visually impressive.)

   Vince 

Re: CHM

[william degnan]

On Mon, Aug 29, 2016 at 3:23 PM, Vincent Slyngstad  wrote:

> From: Dave Wade: Monday, August 29, 2016 12:11 PM
>
>> I am going to be in San Francisco in a few weeks' time, but only for
>> about a
>> day and half. I could spare 2 hours at CHM but is it worth dragging myself
>> up there on a Sunday when there are no working exhibits, and I will only
>> have two hours.
>>
>
> My wife and I quite enjoyed our visit, the day before VCFW.  We spent more
> like 6 hours on it, though.
>
> Realistically, in two hours (or even 6), you won't have time to notice
> things
> aren't actually running.
>
> Heck, if you can get there for the PDP-1 demo, that is working, and will
> pretty
> much sink your 2 hours.  (It is awesome.  The 1401 demo is nice, too, but
> not
> as visually impressive.)
>
>Vince
>

It's worth it.  Two hours looking at fantastic exhibits is better than
none...you'll get a lot out of your time there.

Bill

RE: CHM

[Dave Wade]

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Evan
> Koblentz
> Sent: 29 August 2016 20:24
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: CHM
> 
> > I am going to be in San Francisco in a few weeks' time, but only for
> > about a day and half. I could spare 2 hours at CHM but is it worth
> > dragging myself up there on a Sunday when there are no working
> > exhibits, and I will only have two hours.
> 
> Yes.

You would say that!. 

Note:- I was not planning to come to San Francisco, I was supposed to be
enjoying a weekend in Vancouver 
but my son has taken a four-month placement at Berkley, so if I wanted to
see him I had to go south.

Al comments noted. Main problem will be dragging myself away after two
hours...

Dave

RE: CHM

[couryhouse]

Anytime you see something you have not seen before... it is 
worthwhile   ed#


Sent from my Verizon, Samsung Galaxy smartphone

 Original message 
From: Dave Wade  
Date: 8/29/16  12:11  (GMT-07:00) 
To: "General Discussion: On-Topic and Off-Topic Posts"  
Subject: CHM 

Folks,
 
I am going to be in San Francisco in a few weeks' time, but only for about a
day and half. I could spare 2 hours at CHM but is it worth dragging myself
up there on a Sunday when there are no working exhibits, and I will only
have two hours.
 
Dave.

Looking for AT WE DSP16A development tools (DOS) and manuals

[Jonathan Gevaryahu]

Does anyone have a copy of the AT/WE DSP16A development tools 
(assembler, etc) for DOS, and the devkit manual?


The actual DSP datasheets and architecture manuals are on bitsavers 
(oddly, not in the same directory, which was confusing to find):



http://bitsavers.trailing-edge.com/pdf/att/dsp/WE_DSP16A_Digital_Signal_Processor_-_advance_data_sheet_-_1988.pdf

http://bitsavers.trailing-edge.com/pdf/att/dsp/WE_DSP16A_data_sheet_addendum_-_May1989.pdf

http://bitsavers.trailing-edge.com/pdf/westernElectric/WE_DSP-16_DSP_Information_Manual_Jan89.pdf


But I'm looking for the actual assembler utility or devkit itself, which 
are listed (as DSP16A-*) on page 2-3 (pdf page 10) of 
http://bitsavers.trailing-edge.com/pdf/att/_dataBooks/1995_ATT_Product_Selection_Guide.pdf



Does anyone have a copy of this, or know someone who has it?

--
Jonathan Gevaryahu
jgevary...@gmail.com
jgevary...@hotmail.com

Re: CHM

[Evan Koblentz]

I am going to be in San Francisco in a few weeks' time, but only for about a
day and half. I could spare 2 hours at CHM but is it worth dragging myself
up there on a Sunday when there are no working exhibits, and I will only
have two hours.


Yes.

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

[Rob Jarratt]

> -Original Message-
> From: Paul Koning [mailto:paulkon...@comcast.net]
> Sent: 29 August 2016 18:10
> To: r...@jarratt.me.uk
> Cc: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?
> 
> 
> > On Aug 29, 2016, at 12:33 PM, Rob Jarratt 
> wrote:
> >
> >
> >
> >> -Original Message-
> >> From: Paul Koning [mailto:paulkon...@comcast.net]
> >> Sent: 29 August 2016 15:08
> >> To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic
> >> Posts 
> >> Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?
> >>
> >>
> >>> On Aug 28, 2016, at 5:11 PM, Rob Jarratt
> >>> 
> >> wrote:
> >>>
> >>> I have a 350 and 380. Neither work. The 380 is reporting a possible
> >>> memory error on the LEDs. Will the 350's memory work in a 380 (or
> >>> vice
> >> versa)?
> >>
> >> The 380 has memory on the motherboard, and a model-specific
> >> daughtercard for expansion memory.
> >>
> >> It seems reasonable that the Pro bus (I/O card) expansion memory
> >> should work in both models, but I don't have any to try that.
> >>
> >> If you have a 380 complaining about memory and it has a Pro bus
> >> memory card installed, I'd suggest removing that card to see if it's
> >> happy with
> > just the
> >> stock motherboard memory.
> >>
> >>paul
> >
> > Just reading your reply again. Are you saying it has enough memory on
> > the board, without using a daughter board? I did see lots of memory on
> > the main board, but assumed it was video memory. I did try removing
> > the daughter board altogether at one point, but it still didn't work.
> > :-(
> >
> > I wish I had a logic analyser.
> 
> You should get the Pro 300 technical manual (two volumes) from Bitsavers.
It
> contains a great deal of relevant detail.
> 
> From Volume 1, page 4-4 summarizes the system memory for both models.
> Page 5-129 describes the memory daughter cards of the Pro-350.  Page 6-125
> describes the memory daughter cards for the Pro-380.
> 
> I misremembered the 350 (I don't have one): it can have memory in the I/O
> card cage, but it also has memory daughter cards, two of them, with 40 pin
> connectors.
> 
> The Pro-380 has main memory on the motherboard.  It also supports an
> optional expansion card, just one, with a 48 pin connector.  The pinouts
> shown for the two types of daughtercards make it very clear that they are
> entirely incompatible.
> 
> The Pro-380 also has graphics on the motherboard (though EBO is an option,
> via a daughtercard).  So a Pro-380 with nothing in the I/O card cage
should
> power up and give you a display on the screen (presumably one complaining
> about not having a bootable device controller...).
> 
> On the other hand, the Pro 350 uses a graphics card in the I/O cage, and
EBO
> is a second I/O card connected to the main one via a jumper cable.
Neither
> of these is compatible with the Pro-380.
> 


Thanks, I see that now. Definitely no compatibility :-(. Just need that
logic analyser really to work out what is the matter with them both. When
the 380 doesn't have the daughter board installed it leaves all the LEDs on
to indicate a system board error. The 350 has the same symptoms with or
without the memory boards. Strange though that the manual mentions a
standard option with memory on the backplane, I don't think my 350 had that
installed. I also notice that the printer port can give access to ODT, I
will see if I can get anything out of that later.


> I have somewhere a printout (on 11x17 size paper, roughly A3) of the Pro
380
> motherboard schematics.  I haven't seen those elsewhere.  I haven't tried
to
> scan them but try if there's interest.
> 
>   paul

Re: AT 3b2, IBM RT, others

[Josh Dersch]

On Sun, Aug 28, 2016 at 6:54 PM, Doug Fields  wrote:

> http://www.ebay.com/itm/112102162849
>
> Looks like someone bought it all and is trying to resell the stuff I
> posted about earlier this month. The original seller asked for $1200 for
> the lot of it.
>
> Cheers,
>
> Doug
>

Isn't that the same eBay seller who had the Multiflow Trace (and thus is
the "original seller" you mentioned who was asking only $1200)?  Wish the
seller would part it out (and ship).  And maybe ask reasonable prices for
filthy untested computer parts.  There's a Moniterm monitor in the back
left that I've been looking for for awhile...

- Josh



>
> > On Aug 6, 2016, at 5:16 PM, Doug F  wrote:
> >
> > The woman didn't seem to be interested in shipping, Ken. I posted her
> information online earlier so you can contact her directly. One of the
> other list members is in Austin and may be able to assist, however. Check
> the recent archives. :)
> >
> > Cheers,
> >
> > Doug
> >
> >> On Aug 5, 2016, at 10:03 PM, Ken Seefried  wrote:
> >>
> >> I'd really like the AT 4425 terminal, which doesn't seem to have
> >> been claimed.  I spent a couple of years with one on my desk.  Any
> >> chance they'd ship?
> >>
> >> My wife and I have an agreement that if I bring home any more VME kit
> >> I have to get rid of an equivalent tonnage of other things.  So unless
> >> that Motorola tower is an 88200 or something suitable esoteric, I
> >> probably need to pass.
> >>
> >> The E box looks like a Sun 3/110 or 4/110 with additional boards.
> >> I'd love to have one.
> >>
> >> Obviously, I would have killed for the Explorer or the RTs.  Double
> >> kill for the 5620.  Good they've found homes.
> >>
> >> KJ
> >
> >
>
>

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

[Paul Koning]

> On Aug 29, 2016, at 6:27 PM, Rob Jarratt  wrote:
> 
> ...
> Thanks, I see that now. Definitely no compatibility :-(. Just need that
> logic analyser really to work out what is the matter with them both. When
> the 380 doesn't have the daughter board installed it leaves all the LEDs on
> to indicate a system board error. The 350 has the same symptoms with or
> without the memory boards. Strange though that the manual mentions a
> standard option with memory on the backplane, I don't think my 350 had that
> installed. I also notice that the printer port can give access to ODT, I
> will see if I can get anything out of that later.

The printer port is either a 4800 baud port intented to drive the printer, or a 
9600 baud at the standard console UART address.  Which it is depends on the 
connected cable; BCC05 is for printer, BCC08 is for console.  Or you can wire 
your own.  The difference is that one (the BCC08, I think) has a jumper which 
tells the hardware to be a console.

paul

Motorola 88000 system on Epay

[jim stephens]

a bit pricy, but it seems to be able to be powered up.   Looks to be 
25mhz according to the boot screen.  The seller has done the smoke test 
for the buyer, and was even going to replace a dead NVram to verify that 
one message about the config being bad was recoverable.


16mb ram.  Seller has done some reasonable searching there won't be much 
available, but if one wants a 88000 system this isn't bad.


Motorola-8120-MC88000-RISC-System-/

http://www.ebay.com/itm/302054107748

I've bought from this vendor, but otherwise no other affiliation.

thanks
Jim

Re: CHM

[jim stephens]

On 8/29/2016 8:24 PM, Fred Cisin wrote:

Folks,
  I am going to be in San Francisco in a few weeks' time, but only 
for about a
day and half. I could spare 2 hours at CHM but is it worth dragging 
myself

up there on a Sunday when there are no working exhibits, and I will only
have two hours.


You can easily spend two hours on the stationary exhibits.

Yes, they sometimes fire up a real 1401, but it is so much cleaner 
than the one that I used to have access to, and the CHM one doesn't 
smell like burnt oil
My Microdata 1600 could work :-).  It is on display in the minicomputer 
section.


I highly recommend this stop to anyone though.
Thanks
Jim

DTC01 DECtalk repaired

[Eric Smith]

Thanks to the source code for the MAME DTC01 DECtalk driver, which is
apparently the only place there is any information on the self-test
error LED codes, I determined that there was a failed HM6264LP-12
static RAM chip. The error code narrows it down to a pair, and
swapping narrowed it down to a single chip.  After replacement with an
HM6264ALP-12, and powering up, I was delighted to hear "DECtalk
version one point eight is running."

At some point if I get sixteen 27128 or 27C128 EPROMs, or maybe eight
27256 or 27C256 with four jumper changes on the board, and two 82S191
or equivalent PROMs, I might upgrade it to 2.0.

I've only ever seen firmware versions 1.8 and 2.0, but there are
rumors of an intermediate version and a version 2.1.  Does anyone have
these?

Re: AT 3b2, IBM RT, others

[Noel Chiappa]

> From: Josh Dersch

> Wish the seller would part it out (and ship). 

So, send the seller an eBay message saying you're interested in some of the
items, and you're in contact with other collectors who are interested in other
items, but: you don't want to buy the entire lot; and suggest to the seller
that they will i) sell it faster, and ii) get more money in total, if they
split the lot up, and are willing to ship things. (Assuming, of course, that
it doesn't sell as-is.)

(Speaking of getting more money, did you all see the PDP-11/34 system that
included a couple of RL01's and some RM03's? It only drew a single bid, and
went for $2K. I was vaguely interested in the RM03's, but didn't want to deal
with the RL01's, so I didn't bid. Wonder how many others made similar
calculations? And I wonder if they buyer will actually use all of it, or put
part of it - perhaps the RL01's or the RM03's - in a corner to gather dust?
Wuz gonna send them a message of the sort I suggested above, but it sold.)

Noel

Re: CHM

[Fred Cisin]

Folks,
  I am going to be in San Francisco in a few weeks' time, but only for 
about a

day and half. I could spare 2 hours at CHM but is it worth dragging myself
up there on a Sunday when there are no working exhibits, and I will only
have two hours.


You can easily spend two hours on the stationary exhibits.

Yes, they sometimes fire up a real 1401, but it is so much cleaner than 
the one that I used to have access to, and the CHM one doesn't smell like 
burnt oil.

Re: CHM

[Jon Elson]

On 08/29/2016 02:11 PM, Dave Wade wrote:

Folks,
  
I am going to be in San Francisco in a few weeks' time, but only for about a

day and half. I could spare 2 hours at CHM but is it worth dragging myself
up there on a Sunday when there are no working exhibits, and I will only
have two hours.

Yes, it is a shame that few machines are even assembled, no 
less running, but STILL VERY much worth the trip.
They do have a 1401 that runs, but it is only fired up on 
certain days.  It was a TOTAL gas to see all this stuff, 
including most of the machines I ever worked with, even if 
just static displays.  I saw a LINC, Bendix G15 and PDP-12, 
as well as the first machine Seymour Cray built in his 
garage, etching the boards with his own hands!
And that was at the Moffett Field site, it must be a LOT 
better now!


Jon

Re: AT 3b2, IBM RT, others

[Josh Dersch]

On Mon, Aug 29, 2016 at 7:43 PM, Noel Chiappa 
wrote:

> > From: Josh Dersch
>
> > Wish the seller would part it out (and ship).
>
> So, send the seller an eBay message saying you're interested in some of the
> items, and you're in contact with other collectors who are interested in
> other
> items, but: you don't want to buy the entire lot; and suggest to the seller
> that they will i) sell it faster, and ii) get more money in total, if they
> split the lot up, and are willing to ship things. (Assuming, of course,
> that
> it doesn't sell as-is.)
>

I had been chatting with the seller after Doug sent out his original mail;
I expressed interest in a few items and was going to work out having stuff
shipped but the seller stopped responding very quickly.  To be fair, I
didn't try following up more than a couple of times (I was on vacation at
the time, so there's my excuse.)  I just assumed she'd gotten better
offers.  I suppose I could contact her again but after seeing the eBay
auction I'm not really feeling it.

- Josh


> (Speaking of getting more money, did you all see the PDP-11/34 system that
> included a couple of RL01's and some RM03's? It only drew a single bid, and
> went for $2K. I was vaguely interested in the RM03's, but didn't want to
> deal
> with the RL01's, so I didn't bid. Wonder how many others made similar
> calculations? And I wonder if they buyer will actually use all of it, or
> put
> part of it - perhaps the RL01's or the RM03's - in a corner to gather dust?
> Wuz gonna send them a message of the sort I suggested above, but it sold.)
>
> Noel
>

Re: AT 3b2, IBM RT, others

[Doug Fields]

http://www.ebay.com/itm/112102162849

Looks like someone bought it all and is trying to resell the stuff I posted 
about earlier this month. The original seller asked for $1200 for the lot of it.

Cheers,

Doug

> On Aug 6, 2016, at 5:16 PM, Doug F  wrote:
> 
> The woman didn't seem to be interested in shipping, Ken. I posted her 
> information online earlier so you can contact her directly. One of the other 
> list members is in Austin and may be able to assist, however. Check the 
> recent archives. :)
> 
> Cheers,
> 
> Doug
> 
>> On Aug 5, 2016, at 10:03 PM, Ken Seefried  wrote:
>> 
>> I'd really like the AT 4425 terminal, which doesn't seem to have
>> been claimed.  I spent a couple of years with one on my desk.  Any
>> chance they'd ship?
>> 
>> My wife and I have an agreement that if I bring home any more VME kit
>> I have to get rid of an equivalent tonnage of other things.  So unless
>> that Motorola tower is an 88200 or something suitable esoteric, I
>> probably need to pass.
>> 
>> The E box looks like a Sun 3/110 or 4/110 with additional boards.
>> I'd love to have one.
>> 
>> Obviously, I would have killed for the Explorer or the RTs.  Double
>> kill for the 5620.  Good they've found homes.
>> 
>> KJ
> 
> 

Re: complete displaywriter set in Canada

[jim stephens]

On 8/29/2016 2:58 AM, Dave Wade wrote:

Jim,
  If you check out my previous posts some one in California had 3277's on the
VCFEED forums...
Thanks DAve.  I will figure out my login on there and get on tomorrow.  
There is a T-11 project with protected uploads that I want to look at.  
I've got one of the original Dec T-11 fun boards, and Scott @ ARclite 
has a number of the T-11 chips as mentioned somewhere.  Might be fun to 
build up a more compact T-11 gizmo after I read over the projects they 
have there.  Looks like a lot of cool stuff.


but will find your 3277 as well, thanks
Jim

Dave


-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of jim
stephens
Sent: 29 August 2016 05:23
To: General Discussion: On-Topic and Off-Topic Posts

Subject: Re: complete displaywriter set in Canada

There is a reserve set.  Any idea how much higher than $99 Canadian it is?

I

suspect that noone was interested enough in this auction to find out.  I'd

look

for it to be listed with a high minimum bid, or maybe to someone who
negotiated offline, or off Ebay directly with the seller.

but it isn't a 99 dollar cherry waiting to be plucked for the keyboard,

i'm

suspecting.

I couldn't find any comment on what the reserve was, sometimes they post
it in comments.

thanks for finding it, hopefully someone will be interested in the entire
package.

There was a 3278 KB in the suggested lines, and I'd be interested in a CUA
coax IBM terminal if there is one that isn't selling for prices similar to

the

Apple 1 that just sold.

thanks
jim


On 8/28/2016 8:32 PM, Electronics Plus wrote:

http://www.ebay.ca/itm/201655050108?rmvSB=true



I can't believe no one has bid on this! I hope it goes to someone as
the complete set, not just for the keyboard!



Cindy Croxton

RE: complete displaywriter set in Canada

[Dave Wade]

Jim,
 If you check out my previous posts some one in California had 3277's on the
VCFEED forums...

Dave

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of jim
> stephens
> Sent: 29 August 2016 05:23
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: complete displaywriter set in Canada
> 
> There is a reserve set.  Any idea how much higher than $99 Canadian it is?
I
> suspect that noone was interested enough in this auction to find out.  I'd
look
> for it to be listed with a high minimum bid, or maybe to someone who
> negotiated offline, or off Ebay directly with the seller.
> 
> but it isn't a 99 dollar cherry waiting to be plucked for the keyboard,
i'm
> suspecting.
> 
> I couldn't find any comment on what the reserve was, sometimes they post
> it in comments.
> 
> thanks for finding it, hopefully someone will be interested in the entire
> package.
> 
> There was a 3278 KB in the suggested lines, and I'd be interested in a CUA
> coax IBM terminal if there is one that isn't selling for prices similar to
the
> Apple 1 that just sold.
> 
> thanks
> jim
> 
> 
> On 8/28/2016 8:32 PM, Electronics Plus wrote:
> > http://www.ebay.ca/itm/201655050108?rmvSB=true
> >
> >
> >
> > I can't believe no one has bid on this! I hope it goes to someone as
> > the complete set, not just for the keyboard!
> >
> >
> >
> > Cindy Croxton
> >
> >

Re: complete displaywriter set in Canada

[Mike Ross]

On Mon, Aug 29, 2016 at 9:58 PM, Dave Wade  wrote:
> Jim,
>  If you check out my previous posts some one in California had 3277's on the
> VCFEED forums...

Wait... what? Where? I'm always looking for 3277s - and desperate for
3277 keyboards! (If anyone can help...)

Mike

http://www.corestore.org
'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

[Rob Jarratt]

> -Original Message-
> From: Paul Koning [mailto:paulkon...@comcast.net]
> Sent: 29 August 2016 15:08
> To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?
> 
> 
> > On Aug 28, 2016, at 5:11 PM, Rob Jarratt 
> wrote:
> >
> > I have a 350 and 380. Neither work. The 380 is reporting a possible
> > memory error on the LEDs. Will the 350's memory work in a 380 (or vice
> versa)?
> 
> The 380 has memory on the motherboard, and a model-specific
> daughtercard for expansion memory.
> 
> It seems reasonable that the Pro bus (I/O card) expansion memory should
> work in both models, but I don't have any to try that.
> 
> If you have a 380 complaining about memory and it has a Pro bus memory
> card installed, I'd suggest removing that card to see if it's happy with
just the
> stock motherboard memory.
> 
>   paul

Unfortunately not. I removed all the expansion cards, but it still complains
about memory. It has a daughter card mounted on the main board (not in the
expansion slots). The 350 has two cards that appear to be physically the
same (connector wise), but different part numbers and different chips (I
have not looked up their datasheets). It would be nice to try the 350
daughter cards in the 380, or vice versa, as neither machine works, but at
the moment I don't really know why.

Regards

Rob

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

[Paul Koning]

> On Aug 28, 2016, at 5:11 PM, Rob Jarratt  wrote:
> 
> I have a 350 and 380. Neither work. The 380 is reporting a possible memory
> error on the LEDs. Will the 350's memory work in a 380 (or vice versa)?

The 380 has memory on the motherboard, and a model-specific daughtercard for 
expansion memory.  

It seems reasonable that the Pro bus (I/O card) expansion memory should work in 
both models, but I don't have any to try that.

If you have a 380 complaining about memory and it has a Pro bus memory card 
installed, I'd suggest removing that card to see if it's happy with just the 
stock motherboard memory.

paul

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

[Rob Jarratt]

> -Original Message-
> From: Paul Koning [mailto:paulkon...@comcast.net]
> Sent: 29 August 2016 15:08
> To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?
> 
> 
> > On Aug 28, 2016, at 5:11 PM, Rob Jarratt 
> wrote:
> >
> > I have a 350 and 380. Neither work. The 380 is reporting a possible
> > memory error on the LEDs. Will the 350's memory work in a 380 (or vice
> versa)?
> 
> The 380 has memory on the motherboard, and a model-specific
> daughtercard for expansion memory.
> 
> It seems reasonable that the Pro bus (I/O card) expansion memory should
> work in both models, but I don't have any to try that.
> 
> If you have a 380 complaining about memory and it has a Pro bus memory
> card installed, I'd suggest removing that card to see if it's happy with
just the
> stock motherboard memory.
> 
>   paul

Manx has a pocket service guide that is specific to the 380, which might
give me more info, but Manx seems to be in the process of being relocated,
so I can't access the document. Does anyone have it?

Regards

Rob

RE: complete displaywriter set in Canada

[Dave Wade]

They may have gone Dave McGuire was talking to him

http://www.vcfed.org/forum/showthread.php?53686-Price-Check-on-IBM-3277-Model-2-Display-Terminal=3277

Dave

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mike Ross
> Sent: 29 August 2016 12:32
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: complete displaywriter set in Canada
> 
> On Mon, Aug 29, 2016 at 9:58 PM, Dave Wade 
> wrote:
> > Jim,
> >  If you check out my previous posts some one in California had 3277's
> > on the VCFEED forums...
> 
> Wait... what? Where? I'm always looking for 3277s - and desperate for
> 3277 keyboards! (If anyone can help...)
> 
> Mike
> 
> http://www.corestore.org
> 'No greater love hath a man than he lay down his life for his brother.
> Not for millions, not for glory, not for fame.
> For one person, in the dark, where no one will ever know or see.'

Re: DEC Pro 350/380 Memory Cards - Interchangeability?

[Paul Koning]

> On Aug 29, 2016, at 12:33 PM, Rob Jarratt  wrote:
> 
> 
> 
>> -Original Message-
>> From: Paul Koning [mailto:paulkon...@comcast.net]
>> Sent: 29 August 2016 15:08
>> To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts
>> 
>> Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?
>> 
>> 
>>> On Aug 28, 2016, at 5:11 PM, Rob Jarratt 
>> wrote:
>>> 
>>> I have a 350 and 380. Neither work. The 380 is reporting a possible
>>> memory error on the LEDs. Will the 350's memory work in a 380 (or vice
>> versa)?
>> 
>> The 380 has memory on the motherboard, and a model-specific
>> daughtercard for expansion memory.
>> 
>> It seems reasonable that the Pro bus (I/O card) expansion memory should
>> work in both models, but I don't have any to try that.
>> 
>> If you have a 380 complaining about memory and it has a Pro bus memory
>> card installed, I'd suggest removing that card to see if it's happy with
> just the
>> stock motherboard memory.
>> 
>>  paul
> 
> Just reading your reply again. Are you saying it has enough memory on the
> board, without using a daughter board? I did see lots of memory on the main
> board, but assumed it was video memory. I did try removing the daughter
> board altogether at one point, but it still didn't work. :-(
> 
> I wish I had a logic analyser.

You should get the Pro 300 technical manual (two volumes) from Bitsavers.  It 
contains a great deal of relevant detail.

From Volume 1, page 4-4 summarizes the system memory for both models. Page 
5-129 describes the memory daughter cards of the Pro-350.  Page 6-125 describes 
the memory daughter cards for the Pro-380.

I misremembered the 350 (I don't have one): it can have memory in the I/O card 
cage, but it also has memory daughter cards, two of them, with 40 pin 
connectors.

The Pro-380 has main memory on the motherboard.  It also supports an optional 
expansion card, just one, with a 48 pin connector.  The pinouts shown for the 
two types of daughtercards make it very clear that they are entirely 
incompatible. 

The Pro-380 also has graphics on the motherboard (though EBO is an option, via 
a daughtercard).  So a Pro-380 with nothing in the I/O card cage should power 
up and give you a display on the screen (presumably one complaining about not 
having a bootable device controller...).

On the other hand, the Pro 350 uses a graphics card in the I/O cage, and EBO is 
a second I/O card connected to the main one via a jumper cable.  Neither of 
these is compatible with the Pro-380.

I have somewhere a printout (on 11x17 size paper, roughly A3) of the Pro 380 
motherboard schematics.  I haven't seen those elsewhere.  I haven't tried to 
scan them but try if there's interest.

paul

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

[Paul Birkel]

-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul Koning
Sent: Monday, August 29, 2016 1:10 PM
To: r...@jarratt.me.uk
Cc: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?

I have somewhere a printout (on 11x17 size paper, roughly A3) of the Pro 380
motherboard schematics.  I haven't seen those elsewhere.  I haven't tried to
scan them but try if there's interest.

paul

-

http://bitsavers.trailing-edge.com/pdf/dec/pdp11/pro3xx/MP01922_PC380_EngrDr
ws_Jun84.pdf

-

RE: DEC Pro 350/380 Memory Cards - Interchangeability?

[Rob Jarratt]

> -Original Message-
> From: Paul Koning [mailto:paulkon...@comcast.net]
> Sent: 29 August 2016 15:08
> To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: DEC Pro 350/380 Memory Cards - Interchangeability?
> 
> 
> > On Aug 28, 2016, at 5:11 PM, Rob Jarratt 
> wrote:
> >
> > I have a 350 and 380. Neither work. The 380 is reporting a possible
> > memory error on the LEDs. Will the 350's memory work in a 380 (or vice
> versa)?
> 
> The 380 has memory on the motherboard, and a model-specific
> daughtercard for expansion memory.
> 
> It seems reasonable that the Pro bus (I/O card) expansion memory should
> work in both models, but I don't have any to try that.
> 
> If you have a 380 complaining about memory and it has a Pro bus memory
> card installed, I'd suggest removing that card to see if it's happy with
just the
> stock motherboard memory.
> 
>   paul

Just reading your reply again. Are you saying it has enough memory on the
board, without using a daughter board? I did see lots of memory on the main
board, but assumed it was video memory. I did try removing the daughter
board altogether at one point, but it still didn't work. :-(

I wish I had a logic analyser.

Regards

Rob