Re: DEC H9xx rack parts needed

[Jon Elson via cctalk]

On 09/16/2017 03:47 PM, Ethan Dicks via cctalk wrote:
Worst case, if I can't resurrect the PC, I'll probably 
throw an Arduino on it and use modern Open Source tools 
for driving it (the LMC box has a DB25 with all the step 
and direction and endstop signals on it for Mach3 or Grbl 
or whatever). This sort of project would be perfect on 
this wee lathe. The pins would be trivial (just need to 
grind an HSS cutting bit with the profile you described), 
and the bushings not much harder (ordinary bit for the 
main diameters and the taper, then cutoff, then rechuck 
and cut down the face to get down to final length). -ethan 

There's also LinuxCNC for machine control.  ( linuxcnc.org )

Jon

Subject: Re: RIP Jerry Pournelle - Firsts:

[Murray McCullough via cctalk]

Date: Fri, 15 Sep 2017 15:22:32 -0700 (PDT)
From: Cameron Kaiser 
To: bill.gunshan...@hotmail.com, cctalk@classiccmp.org
Subject: Re: RIP Jerry Pournelle - Firsts
Message-ID: <20170915.v8fmmw5r7405...@floodgap.com>
Content-Type: text/plain; charset=US-ASCII


>> I used to read his column for its humor value but I always thought
>> of him as an idiot as far as comuters were concerned.


Apparently this opinion is fairly widely shared:

"As far as comuters (should it not be computers) were concerned." I
guess one is entitled to their opinion. As an historian of modern
technology and a subset of it, social media, I can only conclude that
the Net allows one to say what they want and have many 'thousands'
concur/agree.

Happy computing all!

Murray  :)

Re: DEC H9xx rack parts needed

[Chuck Guzis via cctalk]

On 09/16/2017 03:21 PM, Steve Malikoff via cctalk wrote:

> Yes I agree they both appear to be simple machining jobs. As a substitute for 
> drill rod...

I'm unclear why the recommendation has been for "drill rod" (i.e.tool
steel) for the parts that essentially hold the parts to a hinge together.

It would seem that a plain 1018 cold-rolled steel would be strong
enough.  For easy machining, even 12L14 would seem to be preferable,
although I don't know if that's legal in the EU, given the slight lead
content.

Anyone care to shed some light on this?  And if "Drill Rod' is the
preferred material, what *kind* of steel?  i.e.  O1, S7, A2, D3, W1, M2?

Just curious--unless the application is for a shaft subject to torsional
loads or needing a cutting edge, I generally use cold-rolled mild
steel--it's inexpensive and machines well.

--Chuck

Re: Convex C220 lives

[Ken Seefried via cctalk]

On 9/12/17, 2:04 AM, "Laurens Vets"  wrote:
>There's something seriously wrong with your site
>http://www.vaxbarn.com/index.php/other-bits/603-convex-c220 unless the
>title of your work is indeed "Feel Like Having Sex Tonight | Best Legal
>Viagra Uk" :)

I think you need to check your end.

Re: DEC H9xx rack parts needed

[Steve Malikoff via cctalk]

Paul and others said
>> On Sep 16, 2017, at 4:10 PM, Paul Koning via cctalk  
>> wrote:
>>
>>
>>> On Sep 16, 2017, at 9:52 AM, Noel Chiappa via cctalk 
>>>  wrote:
>>>
 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.)
>>
>> If you have a lathe, this looks like a very nice beginner's project.  Start 
>> with a rod of the right diameter; a simple way to get such a rod is to buy a 
>> long bolt, because those are mostly not threaded.  Failing that, get a 
>> length of "drill rod" from a metal supply outlet.  Then all you need is
to grind a tool bit (high speed steel) to form a narrow screwdriver-like tip to 
cut those grooves.  Hold the rod in the lathe, cut the grooves in the right 
spots, cut the thing to length, done.>
> Ok, I read that wrong.  You were talking about the short thing.  Still, 
> that's an easy project.  Same idea.  Start with a rod, grip in the chuck, 
> drill, cut bevel, cut the two diameters, then cut to length.  Elementary 
> lathe operation books are easy to find; the South Bend Lathe manual that used
to be reprinted by Lindsay Publications is very good.  It's probably still 
available even though Lindsay unfortunately retired some years ago.>
>   paul

Yes I agree they both appear to be simple machining jobs. As a substitute for 
drill rod (although not the same quality steel) you can
use shafts out of old printers and photocopiers, I have a bunch of them I saved 
for just this sort of purpose. Often they have
circlip grooves in them already, so some of the work is saved, but a fine tooth 
hacksaw will make a circlip groove whilst the lathe
is spinning (frowned-upon workshop practice, I know). or just place it in a 
vice, saw, rotate the pin for the next few degrees and
so on. Check the circlip for fir every so often.
The bush looks pretty straghtforward. Between the one-off and the full CNC 
route is the form tool approach where the profile is
ground in a piece of tool steel and then fed into the job. For very low runs a 
piece of drill rod can be cut then hardened, sure
saves a lot of effort grinding.
If some micrometer or digital caliper measurements of the pin and bush are 
available I'll draw it up for the list. :)

Steve.

Re: cctalk Digest, Vol 39, Issue 15

[Guy Sotomayor Jr via cctalk]

> On Sep 15, 2017, at 11:52 AM, Fred via cctalk  wrote:
> 
> On Fri, 15 Sep 2017, cctalk-requ...@classiccmp.org wrote:
> 
> 
>> Date: Thu, 14 Sep 2017 18:40:10 -0700
>> From: Ian Finder 
>> Subject: WTB: IBM 7060 aka MP3000
>> 
>> I'm looking for a small s390 machine to do some learning with.
>> If you have one for sale, please contact me off-list.
>> 
>> I don't have an enterprise-sized budget but can make a reasonable
>> four-digit offer.
> 
> 
> Me too!
> 
> 
> Seriously though, I remember being outbid by a mere $100 or so on an MP3000 
> that I believe Guy S. (don't want to totally butcher his last name, so S. it 
> is) snagged.   I was bummed I didn't get the mainframe, but glad a fellow 
> collector did.
> 
> If there's more than one for sale, I'll tag along and would kindly ask I get 
> right of first refusal on the second one.  :)   I am also am able to offer 
> four-digit dollars.
> 

Sorry ‘bout that Fred!  But it does have a good home!  ;-)  I’ve just been too 
busy lately to really do much with it yet.

In terms of my last name, I’ve pretty much seen it all.  ;-)  BTW, the US 
Supreme Court Justice with the same last name as mine is actually my 2nd 
cousin!  ;-)  Which brings me to my little riddle: What do a US Supreme Court 
Justice, a medieval Spanish castle and Christopher Columbus all have in common? 
 ;-)

There is an MP 3000 on eBay at the moment (but it’s a little pricey): 
http://www.ebay.com/itm/7060-H30-IBM-S390-Multiprise-3000-Enterprise-server-H30/27274154?ssPageName=STRK:MEBIDX:IT&_trksid=p2055119.m1438.l2649
 


TTFN - Guy

Re: Alto 5-Key Keyset pictures

[Steve Malikoff via cctalk]

Al said:
> I had to fix a key on CHM's keyset today, so I shot a bunch of pictures while 
> it was apart
> http://bitsavers.org/pdf/xerox/alto/Alto_5-Key_Keyset
>
> They spent a lot of money on this. There are two castings of the same 
> material as the keyboard
> and monitors, and two injection molded parts for the keys and the four 
> spacers betwen the microswitches.
>
Al, that's fabulous! Thanks for providing some more insight into one of those 
input devices that
fell by the wayside in the annals of human-computer interaction like the light 
pen, versawriter,
space ball and others.
I would think Xerox contracted out the design to a capable engineering firm, 
handed them a prototype and
a pot of money and the instructions 'make a nice one of this, we want X of them 
please'.

Your pictures especially the internal details will really help in my drawings. 
I've started on Marc's
photos, first thing I do is rotate the images to level them up, although so far 
they are only about a degree
or two out which is pretty good for eyeballed shots. The next step is the image 
is loaded as a background
layer in CAD then overdrawn with construction lines. Same for the plan and 
elevation, then they are
brought together onto one drawing and stretched to fit eatch other. At least 
one of the three images will
have a known length so at that point the whole drawing gets scaled to actual 
size. It's a slow process.

Steve.

Thin Client as Graphics Terminal

[Douglas Taylor via cctalk]

The other day I bought an HP thin client (HP T5530) and had planned to 
use it for my prom programmer.  The thin client has a parallel port and 
will boot to dos so I thought that would be perfect.


When I reloaded the HP OS software into flash memory and booted the 
client up I noticed there was a terminal emulation capability.  It 
seemed to be comprehensive in that it would emulate Tektronix, all kinds 
of DEC VT terminals and would do TEKTRONIX, REGIS and VT640 graphics.  I 
tried it connected to a VAX via its serial port and it worked.  I tried 
telnet into a VAX and ran a program that generated TEK4010 type 
graphics.  It drew the graph OK but once in the TEK mode I couldn't get 
it back into terminal mode.  The client froze up and I had to reboot.


Has anyone else ever tried these as graphics terminals?  Is the 
emulation good or bad?  I'm looking for color, say VT340 or VT525.


Doug

Re: DEC H9xx rack parts needed

[Ethan Dicks via cctalk]

On Sat, Sep 16, 2017 at 4:57 PM, Chuck Guzis via cctalk
 wrote:
> On 09/16/2017 01:47 PM, Ethan Dicks via cctalk wrote:
>
>> This sort of project would be perfect on this wee lathe

> You'll still need to center-bore the hole through the thing, which,
> while not hard, does require some skill and a set of centering drills.

Right.  There's that part too.  Easy on a "real" lathe, not easy on
the specific CNC lathe I have (it has a simple tailstock and no chuck
for drill bits).  I do have access to a 12" x 36" manually-operated
screw lathe that would be able to do all the steps, but I have to pay
$15/hr to rent it (not terrible, but also not free and the tool time
is much greater cost than the material cost).

> Personally, I'd probably find a friend with a home machine shop and buy
> him a suitable quantity of his beverage of choice to do the job.
> machinists don't own a shop because they *hate* machining.

Right.  You want a couple, and it's no big deal.  Some beer and
company and conversation and a chance to show off the tools.   A box
of a bunch of the same thing though, that's work.

-ethan

Re: DEC H9xx rack parts needed

[Chuck Guzis via cctalk]

On 09/16/2017 01:47 PM, Ethan Dicks via cctalk wrote:

> This sort of project would be perfect on this wee lathe.  The pins
> would be trivial (just need to grind an HSS cutting bit with the
> profile you described), and the bushings not much harder (ordinary bit
> for the main diameters and the taper, then cutoff, then rechuck and
> cut down the face to get down to final length).

You'll still need to center-bore the hole through the thing, which,
while not hard, does require some skill and a set of centering drills.

Personally, I'd probably find a friend with a home machine shop and buy
him a suitable quantity of his beverage of choice to do the job.   Home
machinists don't own a shop because they *hate* machining.

--Chuck

Alto 5-Key Keyset pictures

[Al Kossow via cctalk]

I had to fix a key on CHM's keyset today, so I shot a bunch of pictures while 
it was apart
http://bitsavers.org/pdf/xerox/alto/Alto_5-Key_Keyset

They spent a lot of money on this. There are two castings of the same material 
as the keyboard
and monitors, and two injection molded parts for the keys and the four spacers 
betwen the microswitches.

Re: DEC H9xx rack parts needed

[Ethan Dicks via cctalk]

On Sat, Sep 16, 2017 at 4:16 PM, Paul Koning via cctalk
 wrote:
 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.)
>>>
>>> http://ana-3.lcs.mit.edu/~jnc/tech/jpg/H9xxPinBushing.jpg
>>>
>> If you have a lathe, this looks like a very nice beginner's project.

I was thinking much the same.  I recently came into a 1990s vocational
school CNC lathe (neighbor by my younger brother moved out and gave it
to him on the way out), 3" x 6".   Light Machines Corp made the
control box and proprietary 8-bit ISA cards.  This one came with an
AT/Olivetti PC6300 that looks like it was an a car wreck (I needed a
prybar to open the case).  The disk was an ST251 on an 8-bit
controller and, surprise, isn't readable.  Worst case, if I can't
resurrect the PC, I'll probably throw an Arduino on it and use modern
Open Source tools for driving it (the LMC box has a DB25 with all the
step and direction and endstop signals on it for Mach3 or Grbl or
whatever).

This sort of project would be perfect on this wee lathe.  The pins
would be trivial (just need to grind an HSS cutting bit with the
profile you described), and the bushings not much harder (ordinary bit
for the main diameters and the taper, then cutoff, then rechuck and
cut down the face to get down to final length).

-ethan

Re: DEC H9xx rack parts needed

[Paul Koning via cctalk]

> On Sep 16, 2017, at 4:10 PM, Paul Koning via cctalk  
> wrote:
> 
> 
>> On Sep 16, 2017, at 9:52 AM, Noel Chiappa via cctalk  
>> wrote:
>> 
>>> 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.)
> 
> If you have a lathe, this looks like a very nice beginner's project.  Start 
> with a rod of the right diameter; a simple way to get such a rod is to buy a 
> long bolt, because those are mostly not threaded.  Failing that, get a length 
> of "drill rod" from a metal supply outlet.  Then all you need is to grind a 
> tool bit (high speed steel) to form a narrow screwdriver-like tip to cut 
> those grooves.  Hold the rod in the lathe, cut the grooves in the right 
> spots, cut the thing to length, done.

Ok, I read that wrong.  You were talking about the short thing.  Still, that's 
an easy project.  Same idea.  Start with a rod, grip in the chuck, drill, cut 
bevel, cut the two diameters, then cut to length.  Elementary lathe operation 
books are easy to find; the South Bend Lathe manual that used to be reprinted 
by Lindsay Publications is very good.  It's probably still available even 
though Lindsay unfortunately retired some years ago.

paul

Re: DEC H9xx rack parts needed

[Paul Koning via cctalk]

> On Sep 16, 2017, at 9:52 AM, Noel Chiappa via cctalk  
> wrote:
> 
>> 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.)

If you have a lathe, this looks like a very nice beginner's project.  Start 
with a rod of the right diameter; a simple way to get such a rod is to buy a 
long bolt, because those are mostly not threaded.  Failing that, get a length 
of "drill rod" from a metal supply outlet.  Then all you need is to grind a 
tool bit (high speed steel) to form a narrow screwdriver-like tip to cut those 
grooves.  Hold the rod in the lathe, cut the grooves in the right spots, cut 
the thing to length, done.

paul

Wanted: Parsytec SCSI-T or BBK-S4.

[Andrew Back via cctalk]

Hello,

I'm looking for a Parsytec SCSI or SBus to Transputer link adapter. Buy
or possible swap for something else interesting.

Also wouldn't say no to a Partsytec X'Plorer, should anyone be looking
to part with one (or two).

Cheers,

Andrew

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

[Noel Chiappa via cctalk]

> 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

RE: BitNET (Was: RE: RIP Jerry Pournelle - Firsts)

[Peter Coghlan via cctalk]

Hi Bill and Dave,

I have fond memories of BITNET in a university environment in the early 1990s
on VM/CMS and on VAX/VMS.

Some years ago, I went searching on the web for information about it and found
almost nothing.  It was as if it had been erased from history.  I did find a
single website which contained lots of BITNET user nostalgia but it has since
disappeared.  I managed to pull some parts of it from archive.org with a view
to putting it back together eventually.  I have had no success contacting the
owner.

After a lot of digging, I managed to locate someone who once worked in EARN
(the European arm of BITNET) who had a long forgotten backup of the BITNET/EARN
network definition files which he was willing to share with me.  I haven't
quite figured out how to share these with the rest of the world yet as they
are full of email addresses, some of which may still be valid.

While the original BITNET was NJE over bisync lines, the second generation of
BITNET also allowed the use of NJE over TCP/IP while maintaining compatibility
with NJE over bisync.

The Hercules bi-sync over IP implementation is not suitable for sending over
the internet as it produces vast amounts of traffic when idle and cannot cope
with latency of more than a couple of seconds nor interruptions of any kind.
Neither is it compatible with the NJE over TCP/IP used for BITNET-II.  I have
written a patch for Hercules which allows it to present what looks like a
bisync line on the inside and to speak BITNET-II compatible NJE over TCP/IP on
the outside.  I have also patched the RSCS that comes with the publically
available VM/370 to be able to speak NJE.  Like most of my projects, these are
very close to completion but hung up on some minor snag near the end.  At the
moment, this setup is able to communicate over the internet with RSCS on
VM/ESA running on a P/390 machine and should be capable of talking to anything
else that could have connected to BITNET-II.

Software such as MAILER and MAILBOOK still exists in much updated form but will
not run on VM/370.  I have asked the current maintainers to see if they can dig
up very old versions which would be easier to press into service on VM/370 but
they have not been successful.  The chances of someone finding an old backup
are probably diminishing rapidly.

The software most commonly used for BITNET on VAX and Alpha VMS is called JNET.
A few years ago, I approached the then owner to see if they would license it
for hobbyist use in a manner similar to the VMS hobbyist license. 
Unfortunately they would not.

There is some relatively freely available software for NJE on VMS and unix
called HUJI-NJE.  It is not as capable or polished as JNET but it is workable.
I have made some tweaks to this to make it work on modern versions of VAX and
Alpha VMS but see note above on completion of projects.  HUJI-NJE also inspired
a unix-only enhanced version possibly called FUNET-NJE which was used to great
effect on EARN/BITNET in Finland.  As far as I know, this version is freely
available.  As far as I recall, there is some confusion over names and versions.

Back in the day, I remember BITNET for unix software called UREP.  I have no
direct experience of it but I recall that interaction with it from other BITNET
nodes was pretty awful.  I have not managed to find any trace of it in recent
years - I think it was probably not free software.

It is not necessary for SIMH to support synchronous connections in order to
allow NJE over TCP/IP in and out.

Regards,
Peter Coghlan.

Hi Bill,

 That's a complex topic. Basically, a BitNet connection was an IBM RSCS
link..., 
 At the low levels  that's BiSync. Real BiSync hardware is rare(ish) but the
Hercules Mainframe emulator does support bi-sync over IP so physically its
possible.

 At the networking level, whilst the original RSCS code is available its an
early version and its missing key features needed for Bitnet.
 Also the freely available versions of VM/CMS on which RSCS runs don't have
the E-Mail software used to send messages.
 
Later versions that would work are still licenced materials of IBM. I think
the same goes for the VAX software. 
As it could possibly still be used commercially to connect to current
mainframes it does not appear to be freely available.

I am also not sure how you would connect it to a mainframe, as I don't
believe SIMH supports synchronous connections.

Dave 
 
 

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bill
> Gunshannon via cctalk
> Sent: 16 September 2017 01:16
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: BitNET (Was: RE: RIP Jerry Pournelle - Firsts)
> 
> 
> 
> 
> While all this talk of the ARPANet is cool and brings back some fine
> memories, what about BitNET?  Anyone here remember it?
> Any chance someone has a copy of the source for a BitNET Node?
> I have seen UUCPNet and DECNet 

RE: BitNET (Was: RE: RIP Jerry Pournelle - Firsts)

[Dave Wade via cctalk]

Hi Bill,

 That's a complex topic. Basically, a BitNet connection was an IBM RSCS
link..., 
 At the low levels  that's BiSync. Real BiSync hardware is rare(ish) but the
Hercules Mainframe emulator does support bi-sync over IP so physically its
possible.

 At the networking level, whilst the original RSCS code is available its an
early version and its missing key features needed for Bitnet.
 Also the freely available versions of VM/CMS on which RSCS runs don't have
the E-Mail software used to send messages.
 
Later versions that would work are still licenced materials of IBM. I think
the same goes for the VAX software. 
As it could possibly still be used commercially to connect to current
mainframes it does not appear to be freely available.

I am also not sure how you would connect it to a mainframe, as I don't
believe SIMH supports synchronous connections.

Dave 
 
 

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bill
> Gunshannon via cctalk
> Sent: 16 September 2017 01:16
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: BitNET (Was: RE: RIP Jerry Pournelle - Firsts)
> 
> 
> 
> 
> While all this talk of the ARPANet is cool and brings back some fine
> memories, what about BitNET?  Anyone here remember it?
> Any chance someone has a copy of the source for a BitNET Node?
> I have seen UUCPNet and DECNet revived.  It might be fun to bring BitNET
> back up for sentimental reasons.
> 
> bill

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: cctalk Digest, Vol 39, Issue 15

[Fred via cctalk]

On Fri, 15 Sep 2017, cctalk-requ...@classiccmp.org wrote:



Date: Thu, 14 Sep 2017 18:40:10 -0700
From: Ian Finder 
Subject: WTB: IBM 7060 aka MP3000

I'm looking for a small s390 machine to do some learning with.
If you have one for sale, please contact me off-list.

I don't have an enterprise-sized budget but can make a reasonable
four-digit offer.



Me too!


Seriously though, I remember being outbid by a mere $100 or so on an 
MP3000 that I believe Guy S. (don't want to totally butcher his last name, 
so S. it is) snagged.   I was bummed I didn't get the mainframe, but glad 
a fellow collector did.


If there's more than one for sale, I'll tag along and would kindly ask I 
get right of first refusal on the second one.  :)   I am also am able to 
offer four-digit dollars.


Fred