- test-drb@ccmp.vtda.org - classiccmp.org

Does anyone have an H11 and need a H27 card? -spam

by couryhouse＠aol.com

I am trying to have cplete. H8 h11 and h89 tjus the need for the pardon I requested Ed Sharpe? archiving for smecc museum.project On Monday, December 28, 2020 Bill Gunshannon via cctalk <bill.gunshannon at hotmail.com; cctalk at classiccmp.org> wrote: On 12/28/20 6:37 PM, ben via cctalk wrote: > On 12/28/2020 4:23 PM, Kevin Lee via cctalk wrote: >> Remember. >> >> Wherever you go...... >> >> There you are ....... >> > What about the Invisible Man? > Ben. > > All joking aside, I sure wish I had a complete H-11.? I have PDP-11's but the H-11 was unique. You know, it would be even cooler sitting next to an H-8. Too bad so few seem to have survived. bill

4 years, 11 months

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No subject

by couryhouse＠aol.com

4 years, 11 months

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FFS - PrismIQ Keyboards

by marvin＠west.net

I am starting to clean out stuff, and one of the things I don't need are these new PrismIQ IR keyboards. Apparently they were originally used with some multimedia stuff in the early 2000s. Because I am just trying to get rid of this stuff, I am only offering them in cases (boxes) of 10 keyboards. These use IR to connect to the device and have no other connectors. The keyboards are membrane type with the main chip inside being a Winbond W78le812-24. Power is supplied by four AA batteries. The cases (10 keyboards) are 20 pounds with a size of 18"x18"x10", and I am in Santa Barbara, CA. Unfortunately, I am unlikely to run out since I have some 40+ cases of them. I generally ship USPS Priority but can ship UPS if necessary. And again, they are free for the cost of shipping.

4 years, 11 months

1
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Looking for HP E8285A Software cards and card images

by alexandre.tabajara＠gmail.com

The subject says all =) I'm specially interested in images (or the cards) of the 11807E opt 100 and the A.02.04 firmware Thanks! Alexandre, PU2SEX ---8<---Corte aqui---8<--- http://www.tabajara-labs.blogspot.com http://www.tabalabs.com.br ---8<---Corte aqui---8<---

4 years, 11 months

2
1
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Toshiba "1-chip" things

by spectre＠floodgap.com

There's a whole bunch of Toshiba "1-chip" QFPs I've run across. Does anyone know of datasheets, or what components (mask ROM, LCD, RAM, I/O, ...) they have? These are usually in cheapie toy systems, particularly VTech. Some allegedly have Z80-compatible cores in them. T7951 (I found this paired with a 2764 ROM) T7812 T7813 T7826 They all appear to be part of the same family. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Denial: it's not just a river in Egypt anymore, is it? -- "True Lies" ------

4 years, 11 months

2
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Does anyone have an H11 and need a H27 card?

by couryhouse＠aol.com

We have a heath h11 that could u se one at smecc museum.project...Chris.? Thanks ed drop ne a lune offlist... thanks....Ed# On Sunday, December 27, 2020 Gary L. Messick via cctalk <Gary at realtimecomp.com; cctalk at classiccmp.org> wrote: Chris, I could use one.? I have an h-11 system that has issues with the h-27 system. Please contact me off list. Gary Gary at realtimecomp.com -------- Original message -------- From: Chris Zach via cctalk <cctalk at classiccmp.org> Date: 12/27/20 4:42 PM (GMT-05:00) To: CCTalk mailing list <cctalk at classiccmp.org> Subject: Does anyone have an H11 and need a H27 card? I have one, and if someone needs to to complete their collection I'd rather it goes there. If you just want to put it on Ebay pls don't bother as I can do that but if you really need one let me know. CZ

4 years, 11 months

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Does anyone have an H11 and need a H27 card?

by cz＠alembic.crystel.com

I have one, and if someone needs to to complete their collection I'd rather it goes there. If you just want to put it on Ebay pls don't bother as I can do that but if you really need one let me know. CZ

4 years, 11 months

1
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HP DDS3 DAT and DEC Tapes

by poc＠pocnet.net

Hello Folks, I?m having fun time to erase used DDS tapes for reuse. I?ve been collecting those over years. Recently, I discovered that with DEC brand tapes, the drive reports the cartridges to be write protected, eventhough the slider is closed which means, they?re supposed to be writable. I suspect there is a software write protect flag on them. Any thoughs, hints, advices how to unlock these tapes for overwrite? :wq! PoC

4 years, 11 months

2
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michael Holley?

by deramp5113＠yahoo.com

...and SWTPC.ORG is gone again. Mike

4 years, 11 months

2
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Keyboard storage

by aperry＠snowmoose.com

I have a bunch of Sun keyboards that I need to store more efficiently and don't want to risk damaging by stacking on top of each other. They are Type 4s, 5s, and 6s (without the wrist rest), maybe 10 in total. Anyone here know of a box or boxes that would work well for this? alan

4 years, 11 months

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Keyboard storage (Alan Perry)

by robinson＠tuberadio.com

Hi Alan, I go to my local shopping center. The fish shop there, has the fish delivered in white foam boxes. Some are long with lids. I go dumpster diving and collect them. They are suitable for keyboards, depends on the length of the keyboard, and the length of the fish. Regards Ray > On Mon, 2020-12-21 at 22:17 -0800, Alan Perry via cctalk wrote: >> I have a bunch of Sun keyboards that I need to store more >> efficiently >> and don't want to risk damaging by stacking on top of each other. >> They >> are Type 4s, 5s, and 6s (without the wrist rest), maybe 10 in total. >> Anyone here know of a box or boxes that would work well for this? >> >> alan

4 years, 11 months

3
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Compiling Fortran77 on the Pro: Where the heck are the library modules?

by cz＠alembic.crystel.com

So I'm working on compiling some programs on my Pro/380. 2.0 OS, Fortran77 compiler, Empire is the sample game. I got it to compile properly but when I try to link it the linker/tkb/pab fails with a bunch of undeclared references. Some of them are in the F77FCS.OLB library files on my pdp11/83 (M+ 4.6) like $CLOS, ISF$, $OSF, and $OPEN, but others like $EOLST, IOAB$, IOAI$, TT$EFN, and others are missing as well. Did DEC really jerk people around so badly by selling the FCS or RMS libraries as a separate installed product? I see some reference to RMSLIB.OLB but it's not on this system. Weird. CZ

4 years, 11 months

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DEC H765 line interference caps

by fritzm＠fritzm.org

Hi all, I?m just starting in on a PDP-11/34 for a friend (happy holidays!) I currently have the H765 power supply torn down for cleaning, inspection, and testing as a first step. While I have the transformer out on the bench, I?m wondering about the line interference supression caps on the ?CAP MOV? board attached to the transformer. These are CDE 220 VAC .1 MFD, across the line, in parallel with some metal oxide varistors. Drawing on collective experience here: would I be well advised to go ahead and swap these out for some modern X2 safety caps while I have the supply apart? Or are these in the ?oh those are rock solid; I wouldn?t touch em unless they were faulted? category? cheers! ?FritzM.

4 years, 11 months

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RL02 Tracking (Aaron Jackson)

by syseng＠gfsys.co.uk

On 12/22/20 18:00, cctech-request at classiccmp.org wrote: > Send cctech mailing list submissions to > cctech at classiccmp.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://www.classiccmp.org/mailman/listinfo/cctech > or, via email, send a message with subject or body 'help' to > cctech-request at classiccmp.org > > You can reach the person managing the list at > cctech-owner at classiccmp.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of cctech digest..." > > > Today's Topics: > > 1. RL02 Tracking (Aaron Jackson) > 2. Re: RL02 Tracking (Aaron Jackson) > 3. Re: RL02 Tracking (Jon Elson) > 4. Re: RL02 Tracking (Josh Dersch) > 5. Re: RL02 Tracking (Aaron Jackson) > 6. Re: tty and video displays (Jules Richardson) > 7. Re: Keyboard storage (Guy Sotomayor) > 8. Wordperfect 6.0 for DOS (Van Snyder) > 9. Re: RL02 Tracking (Noel Chiappa) > 10. Keyboard storage (Alan Perry) > 11. Re: Keyboard storage (Warner Losh) > 12. RE: Keyboard storage (Ali) > 13. Re: Keyboard storage (Alan Perry) > 14. RE: Keyboard storage (Ali) > 15. Re: Keyboard storage (Alan Perry) > 16. Re: Keyboard storage (Guy Sotomayor) > 17. RE: Keyboard storage (ED SHARPE) > 18. Re: RL02 Tracking (Christian Corti) > 19. Re: Keyboard storage (Patrik Schindler) > 20. Re: RL02 Tracking (Aaron Jackson) > 21. Re: RL02 Tracking (Aaron Jackson) > 22. Re: Keyboard storage (Alan Perry) > 23. Re: Keyboard storage (Bill Degnan) > 24. Re: Ouch, but 2 Perqs out. (Why 42? The lists account.) > 25. Re: Ouch, but 2 Perqs out. (Why 42? The lists account.) > 26. Re: Ouch, but 2 Perqs out. (Tony Duell) > 27. Re: Ouch, but 2 Perqs out. (Tony Duell) > 28. Re: Ouch, but 2 Perqs out. (Chris Zach) > 29. RE: Keyboard storage (Fred Cisin) > 30. RE: Keyboard storage (ED SHARPE) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 21 Dec 2020 19:08:14 +0000 > From: Aaron Jackson<Aaron.Jackson at nottingham.ac.uk> > To: "cctalk at classiccmp.org"<cctalk at classiccmp.org> > Subject: RL02 Tracking > Message-ID:<91bim8vyo2q.fsf at mimas.cs.nott.ac.uk> > Content-Type: text/plain; charset="iso-8859-1" > > Hi everyone > > I've posted a few times over the years about RL02 drives and my > difficulty getting them working (no luck so far!). I've spent the past > few days working on one of them and have made some progress. > > The status currently is that the heads will load, and the ready lamp > flashes as the heads wobble back and forth very slightly, trying to lock > onto the outer servo guard band. Probing TP2 of the read/write module, I > can see the S1 servo burst flash (roughly in time with the ready > lamp). If I disconnect power to the servo motor, I can manually move the > head onto the outer guard band (less than a mm away) and monitoring the > position signal (TP15 on the drive logic module) shows this to be close > to 0. So, I'm very confused. > > I've worked through chapter 3 multiple times... > > - voltage checks - all good > - sector transducer output check - all good > - sector pulse timing check - all good > - read signal amplitude check and adjustment - all good > - positioner radial alignment - required some tweeking but is good now > - head alignment - looks good to me > - spindle runout check - a little noisy but within spec > - position signal gain check - looked ok > - tachometer ac noise pickup check - this one didnt look so good > > Supposedly if the main drive motor is bad it will emit noise and cause > the tachometer (just a coil of wire on the head carriage) to produce > spikes. Mine does look quite noisy but I'm not sure what's causing it. I > would expect that if it was picking up noise, I'd be able to detect this > with my oscilloscope probe by putting it close to the motor, but I > can't. Any ideas? > > Also, thanks to pjustice on irc who suggested checking the spindle > grounding button. Mine is very worn out but I've been able to apply some > pressure to it from the under side which reduces the resistance of the > spindle to ground, from 400 ohm to 0 ohm. This didn't make the situation > any better though. > > Still, the situation over all is much better now than it was last time I > looked at the drive (over two years ago now I think). Previously the > heads would attempt to load and then the fault lamp would come on > immediately. At least now it's trying to lock onto a track. I have the > same results with two cartridges (which is all I have!). > > If anyone has any ideas I'd love to hear them! > > Aaron Aaron, One thing I would check is the motor bearings. What happens on electro mechanical assemblies left in store for years is that ball bearing grease lube dries out and hardens, resulting in lumpy rotation and increased friction that can be detected by rotating the spindle by hand. RLxx series drives were very reliable typically, but the head movement assy is pretty cheap and cheerful. Converting spindle to linear movement, minimum parts count, dc brush brush motor, means that all the bits need to be smooth in operation, with no stiction anywhere in it's travel. I would take the motor out and if it can't be stripped to clean the bearings, use a dab of light clock oil to relube. Also, check the brushes and clean / polish the commutator. Any other ball bearings in the path, same process. DC brush motors can be a nightmare for that sort of precision positioning application... Chris

4 years, 11 months

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RL02 Tracking

by shadoooo＠gmail.com

> The ready lamp flashes not when the servo burst is >visible, but when the heads are just before it. > Why? Well, I probably set the gain too high on the read/write module. Hello, I'm sure you read the manual, however I add some explanation to be sure. The best head position is not where a servo track is at maximum amplitude (head is exactly centered to a servo track), but where you read two servo tracks with the same amplitude (so head is exactly between two servo tracks, in middle position). Comparative measurement of two servo tracks allow the servo control to understand the position of the head in respect to data track. If the best position for data track is not where servo have same amplitude probably the head is misaligned or the spring support of the head bent / deformed. To analyze head circuits you need a good oscilloscope, you should be able to see burst of servo tracks and data tracks too, with two channels you can understand if analog to digital threshold / pulses signal conversions do work as expected. Time ago I fixed an RL02 having a malfunctioning head amplifier circuit. The gain was too low. When I increased it rotating variable resistor, the circuit begun to ring (barely auto-oscillate), so was nearly unstable. Data and servo signals were corrupted, but this was visible only zooming on oscilloscope after careful trigger alignment. I don't remember exactly what I did, but some capacitors needed replacement, then I tuned head gain while loading a platter to the best position for operation, maybe slightly lower than manual recommendations. Then it worked perfectly. Andrea

4 years, 11 months

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Wordperfect 6.0 for DOS

by van.snyder＠sbcglobal.net

Relisted Wordperfect 6.0 for DOS on EBay. Item number 224289791291. Van Snyder van.snyder at sbcglobal.net

4 years, 11 months

1
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Keyboard storage

by couryhouse＠aol.com

Hopefully someone will have some.... The blasted one is on the left? side of the keyboard. Having a spare for the right side? probably not a bad idea too... We were missing keyboards? and got this like new one? gifted to us.? It was heartbreaking to see it damaged in shipping. We have a couple early 5150 umits with? expansion chassis.? Although only one of the? monster interconnect cables between the? pc and expansion chassis. Looking for posters lapel pins? and other display art to fill in? open areas... Any other ideas wekcome! Ed# On Tuesday, December 22, 2020 Fred Cisin via cctalk <cisin at xenosoft.com; cctalk at classiccmp.org> wrote: Ed, that was excellent!? We appreciate the extra effort. Alas, you are 15 years too late for my extra 5150 keyboard parts.? They didn't make it through the third move (Ben Franklin commented how that was as disruptive as a fire) -- Grumpy Ol' Fred? ? ??? ??? cisin at xenosoft.com On Tue, 22 Dec 2020, ED SHARPE via cctalk wrote: > > Let's try this... > > Had a ibm orig pc key board shipped in large flat rate Game size box.? > > Alas it was dropped on the corner and torn somewhat. > > I had to remount keyboard pc inside the case that had moved? and hardest part was getting ground wire back > > Worse part was one of the corner edge flip up things that keeps key at an angle bad snapped off.???? Museum needs parts to fix this? as it is nice to display keyboard at an angle > > Alas? that particular Clicky keyboard is extremely heavy ... this is the one for first ever ibm pc.?? Corner drop shock is a killer. > > ? Beware? pack these early keyboards really well... > > OK does anyone have parts for the little mechanism on the end that keeps keyboard tilted at an angle? > > > .Ed Sharpe archivist for SMECC museum project > On Tuesday, December 22, 2020 Fred Cisin via cctalk <cisin at xenosoft.com; cctalk at classiccmp.org> wrote: > On Tue, 22 Dec 2020, ED SHARPE via cctalk wrote: >> Had a ibm orig pc key board shipped in large flat rate. Game size box.? Alas was,dropped on. Ornery and torn some on box... I had to remount keyboard pc inside that had moved lo and neef nd one of the corner edge til tje kry bad snapped off...??? that particular Clicky keyb I ad is extremely heavy for first ever ibm pc.??? Be ware? pack really well...... >> Help anyone got parts for the tilter >> ...thing? for these keyboards???? >> ...ed sharpe > > May we suggest that you switch temporarily to a working keyboard (or > "keyb" if you prefer) until you can repair the shipping damage. > What is "lo and neef nd"? > "til tje kry bad"? > It must be hard on you to have to proofread and fix all of the errors that > it creates.

4 years, 11 months

1
0
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Keyboard storage

by couryhouse＠aol.com

Let's try this... Had a ibm orig pc key board shipped in large flat rate Game size box.? Alas it was dropped on the corner and torn somewhat. I had to remount keyboard pc inside the case that had moved? and hardest part was getting ground wire back Worse part was one of the corner edge flip up things that keeps key at an angle bad snapped off.???? Museum needs parts to fix this? as it is nice to display keyboard at an angle Alas? that particular Clicky keyboard is extremely heavy ... this is the one for first ever ibm pc.?? Corner drop shock is a killer. ? Beware? pack these early keyboards really well... OK does anyone have parts for the little mechanism on the end that keeps keyboard tilted at an angle? .Ed Sharpe archivist for SMECC museum project On Tuesday, December 22, 2020 Fred Cisin via cctalk <cisin at xenosoft.com; cctalk at classiccmp.org> wrote: On Tue, 22 Dec 2020, ED SHARPE via cctalk wrote: > Had a ibm orig pc key board shipped in large flat rate. Game size box.? Alas was,dropped on. Ornery and torn some on box... I had to remount keyboard pc inside that had moved lo and neef nd one of the corner edge til tje kry bad snapped off...??? that particular Clicky keyb I ad is extremely heavy for first ever ibm pc.??? Be ware? pack really well...... > Help anyone got parts for the tilter > ...thing? for these keyboards???? > ...ed sharpe May we suggest that you switch temporarily to a working keyboard (or "keyb" if you prefer) until you can repair the shipping damage. What is "lo and neef nd"? "til tje kry bad"? It must be hard on you to have to proofread and fix all of the errors that it creates.

4 years, 11 months

3
2
0 0

Keyboard storage

by couryhouse＠aol.com

Had a ibm orig pc key board shipped in large flat rate. Game size box.? Alas was,dropped on. Ornery and torn some on box... I had to remount keyboard pc inside that had moved lo and neef nd one of the corner edge til tje kry bad snapped off...??? that particular Clicky keyb I ad is extremely heavy for first ever ibm pc.??? Be ware? pack really well...... Help anyone got parts for the tilter ...thing? for these keyboards???? ...ed sharpe On Monday, December 21, 2020 Ali via cctalk <cctalk at ibm51xx.net; cctalk at classiccmp.org> wrote: > Is this the USPS large flat rate box size that isn't the rectangular > one > that post offices usually have. I just noticed the size mentioned on > the > Click-N-Ship site. > > alan Yes. It is not usually stocked at the PO. You have to "order" them from the USPS website. They have the measurements there so you can verify your KBs will fit. However, I have shipped IBM 122 key terminal KBs in them without issues. Only thing that may not fit would be some of the older IBM KBs (like the ones on the Displaywriter). -Ali

4 years, 11 months

2
1
0 0

RL02 Tracking

by Aaron.Jackson＠nottingham.ac.uk

Hi everyone I've posted a few times over the years about RL02 drives and my difficulty getting them working (no luck so far!). I've spent the past few days working on one of them and have made some progress. The status currently is that the heads will load, and the ready lamp flashes as the heads wobble back and forth very slightly, trying to lock onto the outer servo guard band. Probing TP2 of the read/write module, I can see the S1 servo burst flash (roughly in time with the ready lamp). If I disconnect power to the servo motor, I can manually move the head onto the outer guard band (less than a mm away) and monitoring the position signal (TP15 on the drive logic module) shows this to be close to 0. So, I'm very confused. I've worked through chapter 3 multiple times... - voltage checks - all good - sector transducer output check - all good - sector pulse timing check - all good - read signal amplitude check and adjustment - all good - positioner radial alignment - required some tweeking but is good now - head alignment - looks good to me - spindle runout check - a little noisy but within spec - position signal gain check - looked ok - tachometer ac noise pickup check - this one didnt look so good Supposedly if the main drive motor is bad it will emit noise and cause the tachometer (just a coil of wire on the head carriage) to produce spikes. Mine does look quite noisy but I'm not sure what's causing it. I would expect that if it was picking up noise, I'd be able to detect this with my oscilloscope probe by putting it close to the motor, but I can't. Any ideas? Also, thanks to pjustice on irc who suggested checking the spindle grounding button. Mine is very worn out but I've been able to apply some pressure to it from the under side which reduces the resistance of the spindle to ground, from 400 ohm to 0 ohm. This didn't make the situation any better though. Still, the situation over all is much better now than it was last time I looked at the drive (over two years ago now I think). Previously the heads would attempt to load and then the fault lamp would come on immediately. At least now it's trying to lock onto a track. I have the same results with two cartridges (which is all I have!). If anyone has any ideas I'd love to hear them! Aaron (Sorry, as usual, about the footer appended by my university.) This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please contact the sender and delete the email and attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. Email communications with the University of Nottingham may be monitored where permitted by law.

4 years, 11 months

4
7
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RL02 Tracking

by jnc＠mercury.lcs.mit.edu

> From: Josh Dersch > RL02 packs that have been degaussed. Might as well hammer nails through them. "To keep the heads properly aligned on the tracks, it used a servo system driven by servo data written on the pack (along with sector headers) at the factory. Packs cannnot be low-level re-formatted in the field". Noel

4 years, 11 months

1
0
0 0

Wordperfect 6.0 for DOS

by van.snyder＠sbcglobal.net

I've put Wordperfect 6.0 for DOS on EBay, item number 224280064405 Van Snyder van.snyder at sbcglobal.net

4 years, 11 months

1
0
0 0

tty and video displays

by bfranchuk＠jetnet.ab.ca

Often for data input one could use over strike characters for input. Not EQ might be = BS | Did any video display terminals repeat the same effect? Ben.

4 years, 11 months

7
11
0 0

Intermec 8625 printer

by nico＠farumdata.dk

Hi all, I'm hoping to get an answer here. The 8625 barcode printer has a prompting mode, switched on by activating the bottom switch in a bank of switches. The printer is then supposed to write a prompt, so you can start programming the label formats. I seem to remember that the printer expects a CTRL+H sequence to be reset/restarted, but nothing happens. Can any of you remember the settings for the terminal (I do know about 9600,7,1,even) ? I'm not sure on which terminal the printer expects to write to. VT100 ? ANSI? ? And how about flow control? Any help would be appreciated Regards Nico PS The printer is to be used for museum purposes, and as usual, the museum has no money to spend :-(

4 years, 11 months

1
0
0 0

VAX-11 Assembly Language Programming

by van.snyder＠sbcglobal.net

I've put "VAX-11 Assembly Language Programming" by Sara Baase on EBay. The item number is 224285749599. Van Snyder van.snyder at sbcglobal.net

4 years, 11 months

1
0
0 0

cc:Mail

by tomas＠basun.net

And one more thing, Am wondering about the possibility of setting up an interface between modern Unix email and the embedded client for cc:Mail on the HP 200LX. Various versions of cc:Mail are available from archive.org and vetusware.com, but the missing link seems to be the "client" type connection from the cc:Mail post office to the internet, i.e. for the PO machine to connect periodically and collect mail, rather than just acting as a server. Have not been able to find much technical information about cc:Mail. I did see a Lotus development kit for sale somwhere but seems to have lost the link. Does anybody here know anything about this? Are there any books or technical documents on cc:Mail available anywhere? /Tomas

4 years, 11 months

7
35
0 0

Tape baking page by Wendy Carlos

by jwsmail＠jwsss.com

I ran across a reference to this on FB.? It appears to be from 2008, so may be well known or obsolete material. The other interesting info at the end of the article is the contact name and info about someone who restores or works on tape heads. Might be interesting to at least contact and ask if he's still around http://www.wendycarlos.com/bake%20a%20tape/baketape.html Contact John French, at JRF Magnetic Sciences (973-579-5773) for further details on magnetic tape head restoration and storage, and other related services and products. FB page with the info. https://www.facebook.com/ReelToReelTapeRecorders/photos/a.532104240183459/3… The fellow who does a lot of tape recorder (reel to reel) repair has a FB group worth dropping in on.? This is the link to a photo with a pretty bad Ampex head. thanks Jim

4 years, 12 months

4
3
0 0

IBM lamps required

by athornton＠gmail.com

> > On 12/16/2020 05:40 PM, robinson--- via cctalk wrote: >> Hi all, >> >> I am setting up an IBM 2803 and 2804 INTEFACE test panel. >> I need some lamps and lamp holders for it, >> lamp voltage not important, >> lamp color not important. >> >> Does anyone have any for sale >> or know where I can get some please. >> >> > These are going to be VERY hard to find. Some people have > saved 360 front panels, but are not likely to part with the > bulbs. What you might need to do, if function is not > required, is to get a single lamp from somebody, and 3D > print some pieces to assemble into a facsimile. Last time I was at the Living Computer Museum, I talked to the guy restoring their 370 panel, who was using LEDs, because the original bulbs are all but unobtainable and do not lave a long service life. This is likely to be something you end up needing to approximate with modern components. Adam

4 years, 12 months

1
0
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IBM lamps required

by robinson＠tuberadio.com

Hi all, I am setting up an IBM 2803 and 2804 INTEFACE test panel. I need some lamps and lamp holders for it, lamp voltage not important, lamp color not important. Does anyone have any for sale or know where I can get some please. 17 lamps required 5 lamp holders required Pictures here.... www.tuberadio.com/robinson/Swaps/Wanted/panel.JPG www.tuberadio.com/robinson/Swaps/Wanted/Lamp1.JPG www.tuberadio.com/robinson/Swaps/Wanted/Lamp2.JPG www.tuberadio.com/robinson/Swaps/Wanted/Lamp3.JPG www.tuberadio.com/robinson/Swaps/Wanted/lampholder1.JPG www.tuberadio.com/robinson/Swaps/Wanted/lampholder2.JPG Regards Ray

4 years, 12 months

3
2
0 0

misc stuff - free

by dstalk＠execulink.com

I'm listing this stuff just in case someone is desperate for any of it. All items are as-is and free. Pickup only here in London, ON. I'm too old and too tired to run around shipping things. I'll hold on to this stuff for a couple of weeks; after that it's the recycling bin. Softech microsystems UCSD p-System 8" floppy disks: CPM40D CPMDISK (BOOTER) UG84AT.C UPGRADE IV.03 Jun 16 1982 N8P4AT 8080 NATIVE CODE GENERATOR Jun 16 1982 LXP4BT UCSD Pascal Compiler Jan 1983 LXP4AT.B UCSD Pascal Compiler Jun 16 1982 UGC4AT.A UPGRADE Jun 16 1982 OII40D ADAP ORIENTER Jan 5 1983 IZP4BT.B Interpreter Jan 26 1983 CZP4BT.B CPM ADAPTABLE Jan 26 1983 SAP4BT.A SYSTEM Jan 26 1983 CPM4BD CPM READABLE Jan 26 1983 N8P4BT 8086 Native Code Genator (sic) Jan 26 1983 Hayes V-series Smartmodem 9600 (in box) XT parallel port card Apple mouse A2M4015 2 x Tandem binders 1 x GA binder General Automation GA-16/220/330 microconsole and system console reference card Raytheon PTS-100 reference card Interdata model 70 and 80 programmer's guide reference card (1971) Databooks: M6800 Microcomputer Family - a 79 page Motorola pamphlet containing specs etc. AMD Am29800 Family High Performance Bus Interface 1981 AMD MOS/LSI Data Book 1976 Synertek 1979 Data Catalog Microprocessor Data Package - International Electronics Unlimited booklet on IMP MM5750, MM5751 CPU set Data Sheets: CR-112 4K MOS RAMs from Texas Instruments - reliability report for TMS 4030, 4050, 4060 IMS2620 High Performance 16Kx4 Dynanic RAM - inmos #110 May 1983 IMS2630 High Performance 8Kx4 Dynanic RAM - inmos #111 November 1983 IMS2600 High Performance 64Kx1 Dynanic RAM - inmos #101 November 1983 GTE 8104/8114 Static RAMs 1024x8 N-MOS April 1980 Texas Instruments MOS/LSI Memory and Microprocessor Products June 1976 Books: The SNOBOL4 Programming Language - Griswold et al Manuals: Courier 270 Information Display System Operator's Manual pub # 30-0002-00-00 Jun 1975 ICC 40+ Data Display System Installation and Operation GA 16/220 prints - this is a very complete set: CUP NO. I, CPU NO. II, SYS. CNSL. INTF. W/IPL, 8K RAM, MEMORY SERVICE MODULE, TTY/with PS, RS-232/TTY, COMPACT MIB, COMPACT PS

4 years, 12 months

15
31
0 0

WTD - Jupiter Ace plastic rivets

by classiccmp＠philpem.me.uk

Has anyone got a couple of the white plastic rivets which are used to hold the Jupiter Ace case together? They consist of a 4-point clawed rivet of about 5mm long, and a pin which pushes down the centre to open it out. I need five of them ideally - but even two or three would get the case buttoned up, if not perfectly. I've checked the local plastic supplier catalogues and haven't found anything which quite matches up. Cheers, -- Phil. philpem at philpem.me.uk https://www.philpem.me.uk/

4 years, 12 months

4
3
0 0

found it: first speech synthesizer (at least, for S-100 systems)

by sieler＠allegro.com

Hi, Some years back, I was asking if anyone had information about the speech synthesizer developed for the Altair 8080 by Wirt Atmar of AICS (in New Mexico). No "hits". Most places on the web claimed the Computalker was first, given the date as 1976 or 1977. (Earlier speech synthesizes existed, but they were external boxes that one interfaced to, or were standalone (often with a large/weird keyboard).) Today, I stumbled over a fairly bad OCR of Byte magazine from August, 1976 at https://archive.org/stream/byte-magazine-1976-08/1976_08_BYTE_00-12_Speech_… It has two articles about speech synthesizers for S-100 bus systems. The first is by the Computalker people, who say: At the time this article goes to press, a synthesizer module incorporating several detail refinements and im- provements over the circuits of this article is being de- veloped by the author and associates. and A detailed user's guide will be supplied with the Computalker module Note the future tense! The second is by Wirt Atmar, whose product *was already shipping*. Near the end of his Byte article, Wirt lists currently available products: At the present time, two speech synthesizers are both commercially available and affordable by the hobbyist. One is the Votrax produced by: Vocal Interface Division Federal Screw Works 500 Stephenson Dr Troy Ml 48084 Price, approximately $2,000 Interfacing: Parallel or Serial (RS-232) The second is the Model 1000 manufactured by: Ai Cybernetic Systems PO Box 4691 University Park NM 88003 Price, $425 Wirt had told me (twenty years ago or so) that he thought his was the first for microcomputers (e.g., a user installed card, not an external box). Now, I'm sure ... but it was realllly close! Wirt demonstrated his product at the earlier MITS World Altair Computer Conven- tion, where it won first prize. He advertised it poorly/infrequently, since it was mostly a side business. And, that shows, since history doesn't remember it. Stan

4 years, 12 months

6
5
0 0

misc stuff - free

by jnc＠mercury.lcs.mit.edu

> I can't pick up in ON, unfortunately, but if someone who is in the area > could please pick up this "Microprocessor Data Package" and ship it to > me, I'd be willing to pay anything reasonable, or maybe slightly > unreasonable. You probably know this already, but if you're willing to pay, there are 'pack and ship' services who will show up at a location, take the stuff to be shipped, go pack it up, and ship it. I have used PakMail: http://www.pakmailcanada.com/ several times to retrieve things in this way (they shipped my PDP-11/45 from Ontario, although the seller did a lot of the packaging in that particular case), and have generally been happy with them. I don't see a London location, but maybe one of their other Ontario locations: http://www.pakmailcanada.com/pakmail-canada-locations is close enough to be useable? Noel

4 years, 12 months

1
0
0 0

WTB: CompuPro / Godbout RAM 17

by deramp5113＠yahoo.com

Were you the winner of the eBay auction? It went for a very reasonable price. It was very difficult for me to not bid on it - those are great boards for use with early S100 systems :) Mike

4 years, 12 months

11
14
0 0

found it: first speech synthesizer (at least, for S-100 systems)

by sieler＠allegro.com

Hi, I'd like to apologize for referring to the OCR of the Byte article as a "fairly bad OCR". I was thinking of the garbled sections that may be the result of trying to OCR graphics. The vast majority of the text comes across clearly, and I don't want to insult whoever volunteered their time to do the OCR'ing ... I know how tedious it can be! I've been spoiled by OCR programs that produce their output as pdfs with searchable text, and should have remembered the results I get when I look at just their text! Stan

4 years, 12 months

1
0
0 0

tty and video displays

by sieler＠allegro.com

Paul writes: > General overstrike requires a bitmap display, or some sort of persistent display. Although he carefully specified 'general overstrike', I'll still mention how the HP 2641A (an APL terminal) did it. When about to enter a newly received character into memory, the terminal checked if a non-blank was already in that spot ... if yes, it looked up the pair in an internal ROM table and replaced the existing character code with a new character code designed for APL\3000 (a code that, when received, would display as the appropriate overstrike). That meant that we couldn't use the terminal at Burroughs, because our APL had a few overstrikes that weren't in the table. Stan

4 years, 12 months

3
2
0 0

Apple Investment

by c.murray.mccullough＠gmail.com

Apple went public Dec. 12, 1980 at $22.00/share over 40 years ago. Where has the time gone! A $1000 investment would be ~45 shares. Today that would be 5040 shares after 5 splits. Its price today is $121/share. That would be $609,840. Here in Canada that?s $939,153! Quite the nest egg. It has certainly paid quite handsomely to have invested in Classic Computers or in one company back then. Happy computing. Stay safe. Murray ? <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

5 years

1
0
0 0

Macro-10 humour

by dstalk＠execulink.com

I came across this among some junk I had. Don .TY NEMON.DOC LEVEL 5 MACRO-10 MNEMONICS ============================= COINCIDENT WITH THE RELEASE OF THE LEVEL 5 MONITOR SERIES, THE MNEMONICS FOR THE HARDWARE INSTRUCTIONS USED IN THE MACRO-10 ASSEMBLER HAVE BEEN UPDATED TO REFLECT CHANGES TO THE MONITOR, AND NEW OPERATING PROCEDURES. ALTHOUGH THEY HAVE NOT ALL BEEN IMPLEMENTED AS YET, A PARTIAL LISTING FOLLOWS: TRCE TRANSLATE REDUNDANT CODE TO ETHIOPIAN ROTC REQUEST OPERATOR TAKE OFF CLOTHES TDCE TRY TO DUMP CORE EVERYWHERE HRR HASH RELOCATION REGISTERS XCT EXTEND CYCLE TIME ANDCMB ALLOW NO DIRECT CURRENT IN MEMORY BANKS AOSE ALERT ONE SYSTEMS ENGINEER SETNM START EJECTING TRANSISTORS AT NEAREST MACHINE SETCM STOP EVERYTHING TO CRASH MONITOR SETAM START EATING TAPE ON ALTERNATE MONDAYS TLCN THROW LIFEPRESERVER INTO CHANNEL FOR NON-SWIMMER MULM MONITOR UPDATE FROM LUNAR MODULE MOVMS MAINTAIN ONLY VARIABLE MAGTAPE SPEED FSBRI FIVE SONIC BOOMS OVER REMOTE INTERFACE HRRES HIJACK REMOTE READER TO ENGINEERING SCIENCE HRREM HALT AND REVERSE ROTATION ON EVERY MAGTAPE JUMPE JUMBLE USERS' MEMORY ON PARITY ERROR IDPB IMMEDIATELY DROP PARITY BIT SETCAI SUDDENLY ELECTRIFY TERMINAL ON CRUDELY ARTICULATED INPUT JFFO JAIL AND FINGERPRINT FLIPPANT OPERATOR ORCMB OPERATOR REQUEST TO CHANGE MAIN BATTERIES SKIP SEARCH FOR KNOT IN INPUT STRING SKIPL SKIP ON KNOT IN POWER LINE ORCBI ORDER REDUNDANT CHANNELS TO THE BACK OF THE I/O BUS SUBI START UNLOADING BAGGAGE FROM THE I/O BUS PUSH PUNCH USING SEMI-CIRCULAR HOLES JUMPL JUMP AND UNRAVEL MAIN POWER LINE SOSL SMEAR OUTPUT ON SLOW LINE PRINTERS TRON TRY TO REWIND OPERATORS' NECKTIE SOSN SEND OUTPUT TO SUPERVISORS' NECKTIE AOBJN ADD ONE BIT TO JOB NUMBER IMULM INSIST THAT MALICIOUS USERS BE LOCKED IN MEMORY FMPR FORGET MEMORY PROTECTION AND RELOCATION FMPRB FAKE MONITOR PROBLEMS AND RESET BRIEFLY CAIE CHANGE ADDRESSING TO INEFFECTIVE FROM EFFECTIVE TRN TRANSLATE TO ROMAN NUMERALS DPB DETACH PROCESSOR BRIEFLY DIVB DECODE INTEGERS TO VERIFIED BRAILLE SETCAI SNICKER ON ERRONEOUS TYPEIN FOR CAI DIVMB DESTROY INDIVIDUAL MEMORY BANK ORCB OUTPUT A RECORD CODED IN BRAILLE TRCE TRANSFER ON ROMAN CATHOLIC ENGINEER TLNE TRANSFER ON LUTHERAN ENGINEER TROA TRANSFER ON ATHEIST SOS SERVICE ONLY STUDENTS SOJG SERVICE ONLY JEWISH GRAD STUDENTS TDC TAKE DISK TO CHIROPRACTER TSCA TURN SYSTEM CLOCK AHEAD FADRB FILTER AIR ON DETECTING ROPE BURNING FADM FILTER AIR ON DETECTING MOUNTIE PUSHJ PROCESS USER'S SHORTHAND JOB TDCA TYPE DOCUMENTATION, CENSORING ANECDOTES MOVEM MONITOR OUTPUTS A VULGAR ERROR MESSAGE ADDM ALLEVIATE DELAYS IN DECTAPE MOUNTING AOSL AWAKEN OPERATOR IF SNORING LOUDLY CAIE CENSOR ALL INPUT FROM ENGINEERING DPB DISPLAY PASSWORDS FROM BATCH FSBM FAST SPLICE OF BROKEN MAGTAPE BLT BEGIN LOSING TIME S0JG STACK OPERATOR (JUST GIRLS) TSON TIME SLICE OF ONE NANOSECOND JRST JOG 'ROUND SEVEN TRACK TAPE TSC TRANSFER SWAPPING TO CARDS

5 years

3
2
0 0

DEC stuff - free

by dstalk＠execulink.com

I'm listing this stuff just in case someone is desperate for any of it. All items are as-is and free. Pickup only here in London, ON. I'm too old and too tired to run around shipping things. I'll hold on to this stuff for a couple of weeks; after that it's the recycling bin. Hardware: 12 x M594 2 x M971 M970 R002 BC08R-01 H8611 VT-52 coils (flyback, etc) VT-100 current loop interface card VAX PASCAL manuals: AA-D030A-TE VAX/VMS Primer (VMS V01) SPD 25.11.4 VAX-11 PASCAL 1.1 AA-H484A-TE VAX-11 PASCAL Language Reference Manual AA-H485A-TE VAX-11 PASCAL User's Guide AA-J181A-TE VAX-11 PASCAL Installation GUide/Release Notes AA-J180A-TE VAX-11 PASCAL Primer 3" DEC binder for the PASCAL manuals single package of prints: PC11 M7810-C-1 "11/25/74" Asynchronous Line Interface M7800-0-1 "75" DL11-0-2 Installation Procedure "4-75" LP11 Interface M7930-0-1 RK05-0-2 "72" RK11-D-1 "73" individual prints: DUV11-DA-1 Field Maintenance Print Set "12-13-76" PC11-0 engineering drawings "70" H720-E Fiche: 2 x DECUS PDP-11 Catalog 1977 DECUS PDP-11 Catalog 1978 Logic Handbook 1970 Logic Handbook 1973-74 Control handbook 1969 Manuals: VT100 User Guide EK-VT100-UG-002 VT52 DECscope Maintenance Manual EK-VT52-MM-001 (1976) RTM Register Transfer Modules (1973) Media: EC-N4783-48 ManageWORKS Workgroup Administrator & SDK March 1995 (trial software) DECdirect CD Catalog Winter 1995 ONYX Electronic Systems and Options Catalog V1.0 (floppies) Listings: MAINDEC-11-DEFPB-A-D Feb 21, 1976 PDP11-45/55/70 FP11C part 2 MAINDEC-11-DEFPA-A-D Feb 21, 1976 PDP11-45/55/70 FP11C part 1 MAINDEC-11-DCKBA to DCKBE-C-D March 21, 1975 PDP11/45-11/40 BASIC CP TESTS

5 years

1
0
0 0

when was memory "above" the terminal screen invented?

by sieler＠allegro.com

Hi, First, apologies if I asked this years ago (I've searched my archives, no hits :) When was the concept of memory "above" the screen invented for terminals? I.e., previously displayed data that had scrolled up and off the screen ... but could be retrieved (usually by scrolling down). (Sometimes called "scrollback", or "offscreen memory".) (BTW, I'm talking about terminal-local memory, not a scrollback implemented by the computer to which the terminal is connected.) The HP 2640A, 1974, had (IIRC) several pages of memory available ... the user could scroll backwards and see what had been on the screen before it scrolled off (as long as it hadn't been lost by having too much subsequent output). I suspect the DEV VT100, 1978, had it, but I can't find definitive proof online (sure, I can find VT102 emulators that have scrollback, but reading an old VT102 manual doesn't make it clear that it has it.) thanks, Stan

5 years

10
10
0 0

Help needed identifying old MFM drives from the excavation

by cz＠alembic.crystel.com

As the excavation of Bob's junkpile continues I have finally hit the MFM layer. Specifically about 10 5.25 hard disks that look to be old style MFM drives. Vertex V150 Miniscribe 6085 ST 4038M Seagate Franklin telecom AT-40 Miniscribe 3650 HH Seagate ST4096 Priam ID45-H Rodime RO203E RD54 Real ST506 Pair of ST412's. Anyone recognize what kinds of systems may have used these? The RD54 is of course DEC, and I'm guessing the ST506 and 412's were from either a Rainbow or a Professional/350. But the rest are weird. Maybe Convergent miniframes? Probably not PC's as Bob had a lot of weird stuff. Thoughts? I'll see if I can get a mfm reader and suck data into files I can post for others to read/try/giggle at. But as there isn't much labelling I have no idea what is on them. Also did find Wordperfect and speller for what I think is Rainbow on 5.25 floppies. Let me know if you need a copy, or if a copy exists in archives (also two DEC disks for Learning the Rainbow or something like that) Chris

5 years

12
21
0 0

Ok, Perqs are stowed away

by cz＠alembic.crystel.com

1 Perq 1, one chassis without motherboards of another Perq1, sides, lids, 1.5 sets of ends, pair of Perq2 endpanels, two keyboards (1 and 2 style) and a portrait monitor. Pictures of all the stuff at https://www.crystel.com/bob/perq4 Not many pictures of this stuff from all angles, so feel free to copy and put on real sites. Anyone need more of these Sun3/4 VME boards? Need to make more space. CZ

5 years

3
2
0 0

Perkins-Elmer 3600 and PETOS

by lproven＠gmail.com

Does anyone know anything much about this early desktop computer and its OS? Example: https://www.ebay.com/itm/Perkin-Elmer-3600-PETOS-Like-Microsoft-BASIC-Compu… Although it predated the PC, MS supplied the BASIC and apparently the CLI resembles early DOS. I ask because there is someone in the Free Pascal Compiler fora looking for help getting data off one -- they're still using it for data monitoring! https://forum.lazarus.freepascal.org/index.php/topic,52458.0.html -- Liam Proven ? Profile: https://about.me/liamproven Email: lproven at cix.co.uk ? gMail/gTalk/gHangouts: lproven at gmail.com Twitter/Facebook/LinkedIn/Flickr: lproven ? Skype: liamproven UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053

5 years

1
0
0 0

WTB: CompuPro / Godbout RAM 17

by deramp5113＠yahoo.com

I assume you saw the RAM 17 on eBay right now? Mike

5 years

6
10
0 0

e: Gateway Electronics Sale this Saturday from 9am to 4pm

by athornton＠gmail.com

If anyone goes to the Gateway sale, please, please tell Doug that Adam Thornton is doing fine in Tucson but misses him and the store greatly. Thanks, Adam

5 years

2
1
0 0

Apple 1 and memorabilia up for auction in Boston (NOT on Epay)

by robert.stek＠gmail.com

I really don't need another one. Bob Saver of lost Sols

5 years

1
0
0 0

Fire-Sale PDP-11 update (and request for parts)

by derschjo＠gmail.com

Thought you folks might be interested in a quick update on my folly here. At the beginning of November I drove down to the bay area to pick up the two fire-damaged PDP-11 systems -- a PDP-11/70 and a PDP-11/45. (I also made a few other stops and got a few other items, but that's not what I'm here to talk about...) Over the past few weeks I've gone over the two systems and my assessment is that the 11/70, while completely filthy, is completely restorable. The fire/heat damaged the front panel enough to discolor the plexi and start melting a few switches (http://yahozna.dyndns.org/scratch/1170/1170.jpg) but that's the extent of the damage. My only fear is that the fingers on the backplanes might possibly have some corrosion here and there, but I've started going through and cleaning the boards and the backplane slots and so far I haven't run into anything that looks troubling. The 11/45 is considerably further gone. It took a serious amount of heat, enough for the pig iron frame for the front panel to start melting ( http://yahozna.dyndns.org/scratch/1170/1145.jpg). The front panel is completely destroyed, as is the wiring harness for the power distribution. But... the metal of the chassis and the power supplies seems to have protected the boards and the backplane. There are no melted or even discolored wire-wrap wires on the backplane, and the boards look fine. As an experiment I took the non-11/45-specific boards out of the backplane (a Plessey memory board, an RL11 controller, and an M9301 bootstrap terminator -- this one was right up front where things were the hottest and the handles had started to melt) and tested them in my PDP-11/40. They all work fine. So I think that, maybe, with a LOT of effort, the 11/45 could live again. I'm tackling the 11/70 first (Al kindly sold me a new front panel for a very reasonable price so it already looks 100% better) and once I'm done with that I hope to move on to the 11/45. In the meantime I'm hoping to keep my eyes peeled for parts for the /45. I found a seller on eBay with "restored" H7420a power supplies for $68, with free shipping so I grabbed a pair. I realize this is unlikely, but I was curious if anyone has 1) any parts of the 11/45 power wiring harness, or 2) (really unlikely) an 11/45 front panel in any condition. Well, any condition better than "melted into slag," I suppose. I can build my own wiring harness, but if I can save myself the trouble, that'd be nice. - Josh

5 years

3
3
0 0

Problems with FORT and ALGOL in TSS/8

by kej＠kyrafre.com

Hi everyone, The Nostalgic Computing Center <http://www.nostalgiccomputing.org/> has a virtual PDP-8 running TSS/8 <http://www.nostalgiccomputing.org:8080/aterm.html?m=pdp8&t=PDP-8&r=24&c=80> in its collection. We use the SIMH PDP-8e emulator to support the machine, and we recently updated the machine to run the TSS/8 distribution created by LCM+L, found here on GitHub <https://github.com/livingcomputermuseum/cpus-pdp8>. The LCM+L distribution is slightly different from other TSS/8 distributions available on the web in that it provides some additional goodies such as ALGOL and LISP. The NCC demonstrates how various classic computers worked by providing automated scripts that interact with the machines in the collection. For example, to demonstrate each of the programming languages supported by a machine, scripts are provided to create, compile, and run a simple Fibonacci sequence generator. We've done this for the TSS/8 system, but the scripts aren't working for FORTRAN or ALGOL, and we're wondering if anyone on this list might know why. Specifically, in the case of FORTRAN, the compiler exits with an error code 6204. This occurs even when trying to compile trivial "hello world" programs, and it appears to occur in all other TSS/8 distributions we've tried as well (i.e., this particular problem is not unique to the LCM+L distribution). We haven't found error code 6204 specifically documented in the TSS/8 user/admin manuals, but the manuals do document other error codes in the 62xx range. Documented error codes in the 62xx range appear to reflect file I/O errors, so we're wondering if perhaps one of the files supporting the FORTRAN compiler is corrupt in all of these distributions. For example, here is a transcription of a simple session demonstrating the problem: .R EDIT INPUT: OUTPUT:FTEST A WRITE(1,10) 10 FORMAT(5HHELLO,/) END E ^BS .R FORT INPUT:FTEST OUTPUT: 6204^BS . We tried enabling the floating point processor to see if lack of FPP might cause FORT to abort, but enabling the FPP did not solve the problem. The SIMH configuration file for the machine currently looks like: set throttle 800K set df disabled set rf disabled set rk enabled set dt enabled att rk0 tss8_rk_lcm.dsk set cpu 32k attach ttix 4000 load boot.bin run 200 Note that BASIC, FOCAL, and LISP all seem to run very nicely on the machine. The problem we're experiencing with ALGOL appears to be a glaring compiler bug, but the compiler was distributed widely through DECUS, and it is difficult to imagine that it would have been released with an obvious bug, so we are wondering if perhaps we're not interpreting the user manual <http://svn.so-much-stuff.com/svn/trunk/pdp8/src/decus/8-213/decus-8-213.pdf> correctly. Here is a transcription of a session that exhibits the problem: .R EDIT INPUT: OUTPUT:ATEST A 'BEGIN' 'INTEGER' I; I := 1; WRITE(1, I); SKIP 'END' $ E ^BS .R ALGOL INPUT:ATEST OUTPUT: *TOO MANY UNDEFINED [UEXPRESSION* ^BS . The compiler seems to be complaining that the simple assignment statement on line 3 of the program is somehow incorrect. If we change the statement to "I := 1 + 0;", the error message goes away, and the program runs, but it prints "0" instead of the expected "1". Also, if we change the program to: 'BEGIN' 'INTEGER' I; 'FOR' I := 1 'STEP' 1 'UNTIL' 10 'DO' 'BEGIN' WRITE(1, I); SKIP 'END' 'END' $ it compiles successfully and it prints what is expected, the numbers 1 through 10. Does anyone have experience with the ALGOL/8 compiler? If so, does this behavior make sense, and can you let us know what we're doing wrong? Note that the same ALGOL60 program compiles and runs as expected on the CDC mainframes and the TOPS-20 system at the NCC. thanks! Kevin

5 years

3
3
0 0

Atari ST diskettes

by van.snyder＠sbcglobal.net

I found a box of 45 Atari ST diskettes in my basement, from my 1980's 520 ST (or maybe my brother's 1040 ST). I don't have a floppy drive, so I can't tell whether they're readable. Some are originals, for example for 1St Word, the word processor, and Regent Base, a relational database program. Others are copies. If you send a PDF of a USPS media rate shipping label, 4"x5"x6", 3lb, they're yours. Coordinate with me so you don't send a label after somebody else has already sent one. Van Snyder

5 years

6
11
0 0

WTB: CompuPro / Godbout RAM 17

by ethan＠757.org

Looking for a RAM 17 for my IMSAI 8080 to replace 6 x 8K boards. -- : Ethan O'Toole

5 years

1
0
0 0

Fire-Sale PDP-11 update (and request for parts)

by jfoust＠threedee.com

At 12:41 AM 12/5/2020, Josh Dersch via cctalk wrote: >Thought you folks might be interested in a quick update on my folly here. > >At the beginning of November I drove down to the bay area to pick up the >two fire-damaged PDP-11 systems -- a PDP-11/70 and a PDP-11/45. (I also >made a few other stops and got a few other items, but that's not what I'm >here to talk about...) Darn, I thought you'd tell some other tales of what Dale had in his warehouse. - John

5 years

2
1
0 0

[cctalk] WTD - Jupiter Ace plastic rivets

by w9gb＠icloud.com

Phil - Search for Push-In Rivets (plastic, nylon, etc.). Two of the largest mfg. of plastic Push Rivets are just east (Richco, River Forest, IL) and north (Fastex, Des Plaines, IL) of me. Both have been acquired by larger conglomerates. ? Richco (River Forest) was bought by Essentra Components (UK) in December 2011. https://www.essentracomponents.com/en-us/s/push-in-rivets Global HQ for Essentra is in your neighborhood (Ask for Samples). Langford Locks Kidlington, Oxon, OX5 1HX United Kingdom Tel: +44 (0) 1865 844572 Fax: +44 (0) 1865 844488 orders at essentracomponents.co.uk www.essentracomponents.com/en-gb ==== ITW/Fastex : Push Rivets (Des Plaines, IL) acquired by Illinois Tool Works (ITW). https://www.itw-fastex.com/rivets.html == greg, Chicago === Date: Fri, 4 Dec 2020 02:20:55 +0000 From: Philip Pemberton <classiccmp at philpem.me.uk> To: cctalk at classiccmp.org Subject: WTD - Jupiter Ace plastic rivets Has anyone got a couple of the white plastic rivets which are used to hold the Jupiter Ace case together? They consist of a 4-point clawed rivet of about 5mm long, and a pin which pushes down the centre to open it out. I need five of them ideally - but even two or three would get the case buttoned up, if not perfectly. I've checked the local plastic supplier catalogues and haven't found anything which quite matches up. Cheers, -- Phil. philpem at philpem.me.uk https://www.philpem.me.uk/ Sent from iPad Pro

5 years

1
0
0 0

Taking apart a Perq

by cz＠alembic.crystel.com

So I'm getting into the "I can see the box" layers in the excavation project, and I have a question: I've got a box that may be a Perq, and a printer that may be a Perq printer. The printer looks like an old Laserjet I, and the box is metal, 3ish feet tall, and has what looks like a 10 inch hard disk inside. Problem is I won't be able to get it up the steps. (Where have I heard that before). So how much can one take a Perq box apart to make it as light as possible? Is it simple to get the drive out? Power supply in there somewhere? How about the card cage? Pics at: https://i.imgur.com/ohuohvC.jpg https://i.imgur.com/81him0F.jpg

5 years

1
0
0 0

Looking for Hazeltine 2000 keyboard

by dfnr2＠yahoo.com

Hello, I just picked up a Hazeltine 2000c? terminal without the keyboard.? If anybody might happen to have (or know of) a spare Hazeltine 2000 keyboard, I would be very interested.? I realize it's a long shot. The keyboard is a standard ASCII keyboard, with several extra function keys and lights, so I'm pretty sure I can whip up a replacement, but the whole point is to recapture the original look and feel.? Back in the '70s, Memphis State (Now U of M) had a few of these terminals, and a great many Hazeltine 1500 terminals.? I've been hunting for a Hazeltine 2000 for ages.? It would be awesome to have one up and running. Dave

5 years

2
1
0 0

Votrax Type N Talk or PSS, Intextalker, Microvox

by robert.stek＠gmail.com

If anyone knows of an available unit (at considerably less than the $500 one on eBay), please let me know. I actually have one SC-01-A and would even take a unit missing the Votrax chip - I understand some units were scavenged for the chip for several video arcade machines which used them.

5 years

7
8
0 0

Apple IIe case screws

by mokuba＠gmail.com

Does anyone know the size/threading of these? I've been searching high and low and haven't been able to find any approximate or otherwise specs (they use captive clips, so close is OK) - i've found the PSU mounting screw sizes and sourced those though. -- Gary G. Sparkes Jr. KB3HAG

5 years

2
1
0 0

Boot Roms for MRV11-C

by dj.taylor4＠comcast.net

The boot roms for the MXV11-B multifunction board can be used in the MRV11-D general purpose ROM q-bus board.? Neat if you want to put together a small system. I have a MRV11-C board and it differs from the MRV11-D board primarily in the ROM sockets, 24 pin on the MRV11-C and 28 pin on the MRV11-D so I can't use the MXV11-B ROM's directly. Can the MXV11-B ROM set be adapted for the MRV11-C board?? If not, what can you use as a bootstrap ROM set on the MRV11-C? Doug

5 years

1
0
0 0

Radio Shack 8MB hard disk for Model II

by spacewar＠gmail.com

I had occasion to look at the service manual for the Radio Shack 26-4150 8MB hard disk which was used with the Model II (and potentially could be used on 12, 16, 16B or 6000). Note that this drive is not compatible with the Model I, 3, or 4, and the cable wiring between the computer and the controller (inside the drive box) is entirely different than what was used on the later 5, 12, 15, 35, and 70 MB drives. The Model II host adapter for the 8MB drive thus is only useful with the 8MB drive, and vice versa. There were later Model II host adapters that could be used with the 12, 15, 35, and 70 MB drives, which were also useful on the Model I, 3, and 4. Anyhow, I discovered that according to the documentation, the 8 bit data bus between the host interface and controller uses 8T26 bidirectional buffers at each end, which are rated to sink up to 24 mA, but the schematics show that Radio Shack put 220/330 ohm terminators on the data bus lines at BOTH ends of the cable! That requires the 8T26 to sink as much as 55 mA, which means that its logic zero output voltage is likely to exceed its normal rating. At the very least, this will result in reduced noise immunity. I don't have an 8MB host interface or drive in hand to confirm, but the photos I've found online do show the resistor networks on both ends. The controller (inside the drive box) is a modified version of a WD1000, configured for use with the 8-inch SA1004 drive, which operates at 4.34 Mbps, NOT 5.00 Mbps like 5 1/4" drives. Aside from that, it has a different host pinout than a normal WD1000 (or than the later Tandy controllers), and has extra circuitry for dealing with write protection. Electrically, the host interface is otherwise the same as the WD1000. Normally the data bus for the WD1000 would only be single-terminated at the controller end. That is in fact what Radio Shack did on all of the later host adapters.

5 years

2
2
0 0

Anyone want some LMI Lisp Machine tapes?

by lproven＠gmail.com

https://www.ebay.de/itm/254795423667 ?1 ? LISP MACHINE INC 1/2" Reel Tapes Anyone who opens this auction will know what this is - and how unique these tapes are. The lot is consisting of 13 tapes, which are labeled as follows: LMI FORTRAN 77 #1352-0000 LMI Release 2.0 two tapes LMI Boot / SDU 3.14 #3143-0000 Rev A LMI REL 3.1 Patch Tape 1600BPI 30. SEP 1987 LMI CS Tape Experimental 6. AUG 1987 LMI UCODE 1599 11 FEB 1987 LMI RELEASE 2.0 Diagnostics #1022-0000 LMI LISP SOURCE LMI Release 3.0 LISP System 3.205 Microcode 1593 plus four unlabeled tapes plus two loose tape label, not assignable to the tapes unlabled The tapes were not tested for readability by me and will be sold as is. Shipment world wide, please ask for shipment costs - additional insurance cost might be apply. ? -- Liam Proven ? Profile: https://about.me/liamproven Email: lproven at cix.co.uk ? gMail/gTalk/gHangouts: lproven at gmail.com Twitter/Facebook/LinkedIn/Flickr: lproven ? Skype: liamproven UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053

5 years

5
5
0 0

Dec ultrix 32 reference books for sale

by lyokoboy0＠gmail.com

I have a bankers box worth of dec ultrix 32 reference manuals in grey dec binders. Im looking to sell the box of books for a few $ plus the cost of shipping. Hoping to find these books a good home. --Devin D.

5 years

13
29
0 0

Heathkit H89A (was accidentally circuit cellar...)

by shumaker＠att.net

Thanks!?? No clue which of us were first but if the museum is interested, I will pass. Steve Shumaker On 11/30/2020 12:42 PM, Tom Uban via cctech wrote: > Valparaiso, IN. > On 11/29/20 4:21 PM, s shumaker via cctalk wrote: >> where are you? >> >> Steve >> >> >> On 11/29/2020 9:37 AM, Tom Uban via cctalk wrote: >>> I'm sorting through my stuff and have Heathkit H89A computer. Last time I messed (20 years ago) it >>> showed signs of life, but was not fully functional. I do have a manual for it. >>> Pics upon request. >>> Any interest? >>> >>> --tom >>> >>>

5 years

1
0
0 0

VMS on x86-64/ARM/RISC-V? - was Re: Microvax 3100 VMS 7.3 password reset

by camiel.vanderhoeven＠vmssoftware.com

On 11/14/20, 1:49 AM, "cctech on behalf of Adam Thornton via cctech" <cctech-bounces at classiccmp.org on behalf of cctech at classiccmp.org> wrote: > I mean obviously the NEXT thing to do is start bugging VSI for ARM support?given that the OS runs on VAX, Alpha, Itanic, and x86_64, how much really crucial and hard-to-port assembly can be left in it??and given the way datacenters are trending, it might not even be a commercially stupid move. I want to run VMS on my phone (or my next Mac). Doesn?t everyone? Hi Adam, Possible architectures beyond x86 we're keeping an eye on are ARM and RISC-V, but they'll need to start doing a lot better in the datacenter before it'll be worth our while. So far, ARM in the datacenter hasn't taken off the way many predicted it would. One thing I'm better at than crystal ball gazing though, is I can give you an idea of how much hard-to-port assembly is left, since I wrote most of the x86 assembly code in it :-) With the port to x86, we made a conscious effort to minimize the amount of code written in assembly; so at this point, it's pretty much limited to code where (a) we can't use the stack, or we need to manipulate the stack pointer in a non-standard way; (b) we need to use a special instruction that we don't have a compiler builtin for (these are mostly cases where an instruction is only used in one place); and (c) code that needs to mix calling standards - i.e. the code shims necessary to interact with the UEFI firmeware. Category (a) is obviously the more interesting one, and that includes things like code that is responsible for switching between VMS' four modes (kernel, executive, supervisor, and user mode), and context switching for the schedulers (OS scheduler, kernel process scheduler, and POSIX threads scheduler). The OS scheduler is a good example of our effort to eliminate assembly code. On VAX, Alpha, and Itanium, the scheduler loop and the idle loop (which performs maintenance tasks such as dirty page zeroing) were written in assembly, and re-written with each port. For x86, I rewrote these in C, using small assembly helper routines only in the critical parts where it couldn't be avoided. In total, there are 30 modules that were written in x86-64 assembly. I'd classify 10 of those are trivial, 16 as average, and 4 as complicated and difficult. The complicated and difficult category contains code responsible for dispatching system services, handling interrupts and exceptions, delivering ASTs. As much design and work was involved in those assembly modules though, a whole lot of x86-specific work was done for the MACRO-32 compiler. MACRO-32 originated as the VAX assembler, and while it is a compiler on other architectures, it is still much like an assembler, and specific translations from the VAX instruction set to the target architecture need to be made. The MACRO-32 compiler talks to the LLVM code generator backend at a lower, more instruction-centric level than the compilers for higher languages, and this work is very x86-64 specific. Given that about 1/3 of the OS is written in MACRO-32, we won't get rid of MACRO-32 code in the OS any time soon. (The other 2/3rds are written in BLISS and C) Also, in the C, Bliss, and MACRO-32 code, lots of conditionalizations are made on architecture. Certain things are done differently on Alpha than they are on Itanium, and on x86 we sometimes do things the way we did them on Alpha, sometimes the way we did them on Itanium, and sometimes we need to come up with an x86-specific way. So, the port to x86 has made a future port to ARM or RISC-V easier; particularly by moving to the LLVM code generator backend, and by figuring out how to run a four-mode OS on a two-mode architecture without sacrificing the benefits of running in four modes; but it has by no means made it trivial. Camiel

5 years

27
60
0 0

DEC PDP-8/E wanted - still looking

by ccth6600＠gmail.com

Tom Uban fully built "Spare Time Gizmos" SBC6120 based computer complete with front-panel and IO board is on its way to me. :-) I am still looking to buy one of the following PDP-8 models: PDP-8/F PDP-8/E PDP-8/L PDP-8/I PDP-8/M Dave, Chris, Paul and Robert I am looking forward to getting more details >from you. I am happy to pay a reasonable price for the right PDP-8, so a seller won't be disappointed. Thanks and best regards Tom Hunter

5 years

8
16
0 0

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone, issues

by keith＠saracom.com

Hi Liam, As stated in my OP, I was using Windows 10 and USB adapters. I used Rufus, Active Disk Image, and Macrium Reflect programs to copy it an image file and then back to the CF. They are supposed to create exact images of the drives but I think they do not. Of course it could be something with my CF to USB adapter. As far as errors, as stated in my OP, "Since the voicemail card is running headless, I can't see the error messages." The only way I know of a successful boot, is one LED turns green and then I can call in to the VoiceMail card. I am going to try a Linux machine and DD next. > ------------------------------ > > Message: 5 > Date: Fri, 27 Nov 2020 16:12:39 +0100 > From: Liam Proven <lproven at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone > issues > Message-ID: > <CAMTenCFACtaGvYBp3cowxhWjestSyBmeyUx=8RXjJ8er3O__-w at mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > On Fri, 27 Nov 2020 at 01:32, keith--- via cctalk <cctalk at classiccmp.org> wrote: > >> I have tried to copy it to an industrial CF >> card but no luck. I have used Rufus, Active Disk Image, and Macrium >> Reflect. > > First question: how did you try to copy it? > > You've not given us anywhere near enough info to try to troubleshoot the issue. > > ? What did you connect it to? > ? How did you connect it? > ? What did you try to copy it onto? > ? Partitioned how? > ? Formatted with what FS, using what tool? > ? What OSes did you try? > ? What errors did you get?

5 years

4
3
0 0

ISO earl TI DSP kits

by aek＠bitsavers.org

CHM doesn't seem to have much early DSP stuff in the collection Does anyone have any of the TMS32010/20/30 or C1x/2x/3x hw/sw kicking around? Other than the docs I've scanned there doesn't seem to be much on the web either.

5 years

6
12
0 0

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone, issues

by keith＠saracom.com

Hi Chris, I will give Linux and DD a try. I do have an USB to 2.5 inch IDE adapter. thanks Keith On 2020-11-28 13:00, cctech-request at classiccmp.org wrote: > The way I would do that is to use a Linux / unix machine and one of the > cheap ebay usb to ide adapters, then use dd to image the whole drive > to a file. That should copy block, including the boot block and > partition table. Use the reverse process to image the file back to > another drive... > > Chris

5 years

1
0
0 0

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone, issues

by syseng＠gfsys.co.uk

The way I would do that is to use a Linux / unix machine and one of the cheap ebay usb to ide adapters, then use dd to image the whole drive to a file. That should copy block, including the boot block and partition table. Use the reverse process to image the file back to another drive... Chris

5 years

2
1
0 0

OSM Zeus 4 Computer

by g-wright＠att.net

Over the years I have requested help on a Zues 4 I have here but only ran into a dead end street.It would error on boot. Today I booted it up and is came up? for some odd reason..? OSM Computer Corp.? Multi-User System.? 4.01/4.00? 01-19-1983? Muse 04.50 running I still can't find much on The OS. looks a little like MPM? Dir lists what looks like CPM/MPM type files. I do see PIP listed but would like to get a Back UP if possible.? Not sure how log the Drive will Keep working. Any manuals or the like out there on the OS? "muse" Or the computer Here is a Picture of one? http://computersheds.uk/fixed_pages/osm_zeus_4.html Thanks,? Jerry

5 years

2
1
0 0

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone issues

by keith＠saracom.com

Hi Everyone, Not a classic computer but has a 386 embedded in it for the voice mail. I rescued it from work. We had it rung for 20 years straight. The voice mail (AD-8) is basically a 386 running MS-DOS 6.22. So my concern is the hard drive. It is the original 2.5 inch IDE IBM Travelstar 6 GB drive. It has bee running for 20 years except for a handful of extended power outages. Hence while it is working now, I don't have too much hope for the future. The PBX had its on battery backup and also was always connected to a UPS. I have tried to copy it to an industrial CF card but no luck. I have used Rufus, Active Disk Image, and Macrium Reflect. I don't have my older PCs up and running at the moment, hence I have been trying with a Window's 10 machine and USB adapters to no avail. Since the voicemail card is running headless, I can't see the error messages. There is a serial port but but I have figured out the settings yet. Any suggestions? Do I need to get a DOS machine running to do this? And yes, I really don't need the voicemail working, nor do I need a PBX in my house but why not?

5 years

3
3
0 0

[TUHS] Seeking wisdom from Unix Greybeards

by erc＠pobox.com

You could write something in C using curses/ncurses (which will do the ANSI sequences for you automatically).

5 years

5
6
0 0

[TUHS] Seeking wisdom from Unix Greybeards

by steffen＠sdaoden.eu

Grant Taylor wrote in <9c1595cc-54a1-8af9-0c2d-083cb04dd97c at spamtrap.tnetconsulting.net>: |Hi, | |As I find myself starting yet another project that that wants to use |ANSI control sequences for colorization of text, I find myself -- yet |again -- wondering if there is a better way to generate the output from |the code in a way that respects TERMinal capabilites. | |Is there a better / different control sequence that I can ~> should use |for colorizing / stylizing output that will account for the differences |in capabilities between a VT100 and XTerm? | |Can I wrap things that I output so that I don't send color control |sequences to a TERMinal that doesn't support them? color_init() { [ -n "${NOCOLOUR}" ] && return [ -n "${MAILX_CC_TEST_NO_COLOUR}" ] && return # We do not want color for "make test > .LOG"! if (command -v stty && command -v tput) >/dev/null 2>&1 && (<&1 >/dev/null stty -a) 2>/dev/null; then { sgr0=`tput sgr0`; } 2>/dev/null [ $? -eq 0 ] || return { saf1=`tput setaf 1`; } 2>/dev/null [ $? -eq 0 ] || return { saf2=`tput setaf 2`; } 2>/dev/null [ $? -eq 0 ] || return { saf3=`tput setaf 3`; } 2>/dev/null [ $? -eq 0 ] || return { b=`tput bold`; } 2>/dev/null [ $? -eq 0 ] || return COLOR_ERR_ON=${saf1}${b} COLOR_ERR_OFF=${sgr0} COLOR_WARN_ON=${saf3}${b} COLOR_WARN_OFF=${sgr0} COLOR_OK_ON=${saf2} COLOR_OK_OFF=${sgr0} unset saf1 saf2 saf3 b fi } Is what i use for a make system. --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt)

5 years

5
7
0 0

[TUHS] Seeking wisdom from Unix Greybeards

by lm＠mcvoy.com

man 1 tput is what I use. On Wed, Nov 25, 2020 at 10:14:55AM -0700, Grant Taylor via TUHS wrote: > Hi, > > As I find myself starting yet another project that that wants to use ANSI > control sequences for colorization of text, I find myself -- yet again -- > wondering if there is a better way to generate the output from the code in a > way that respects TERMinal capabilites. > > Is there a better / different control sequence that I can ~> should use for > colorizing / stylizing output that will account for the differences in > capabilities between a VT100 and XTerm? > > Can I wrap things that I output so that I don't send color control sequences > to a TERMinal that doesn't support them? > > > > -- > Grant. . . . > unix || die > -- --- Larry McVoy lm at mcvoy.com http://www.mcvoy.com/lm

5 years

1
0
0 0

Fortran IV V2.5 for RT-11

by mattislind＠gmail.com

I found a three RX01 disk set for a Fortran IV system V2.5 for RT-11. I dumped the contents and it is available here: https://drive.google.com/file/d/12VXh4wk3Zo_fSGRtLPHwrJg6ui3pwVd-/view?usp=…

5 years

2
1
0 0

DEC PDP-8/E wanted

by ccth6600＠gmail.com

I know it is the year 2020 but nevertheless what are my chances of finding a complete and repairable DEC PDP-8/E or as a second choice a PDP-8/I ? Is there any hope or should I be just content with my SIMH based PiDP-8/I? Thanks Tom Hunter

5 years

6
7
0 0

LCD screen repair

by trash80＠internode.on.net

Hi folks - be grateful for a little advice please. Some time I rescued an Apple Power Mac G4 (it's a beautiful machine, not that I'm a big Mac person, and I can't believe someone was going to toss it) - powers up OK but looks like it just needs a new battery as its not holding date and time. Anyway the other day I was cleaning up in my collection facility and dropped the monitor - I wasn't quick enough to save it from hitting a metal object just under the bench and as chance would have it of course this happened screen side. Its put a gouge in the surface of the screen - link to photos below. http://koken.advancedimaging.com.au/index.php?/albums/apple-screen/ Now I believe it is possibly repairable but the are many kits and methods out the all claiming some success. I figure I'm only going to get one shot at this so would appreciate any advice from anyone who may have effected such a repair before. Thank you. Kevin Parker <https://t.sidekickopen76.com/s1t/o/5/f18dQhb0S7n28cFFdQW752kH81jkhdLW1_k-L- 1qZM43W3s0v_y2M0f8BF4c2NfHml5Hf6Bq4h603?si=8000000004908274&pi=2139d449-dcd9 -4daf-91a4-c2defc817fd5>

5 years

4
5
0 0

FS: Tek scope, HP LA, and Electronic components!

by mechanic_2＠charter.net

Hello all, I have probably developed cancer. I can't get in for treatment. I have enough lumps in my body that it probably wouldn't make a difference. So more than likely I am dying. I am asking for everyone's help. I am selling off all of my processions and simplifying my life before I die. I don't want to see this stuff end up in the landfill. Please help out a dying old man? I have a Tektronix 465B Scope with four probes for sale. A HP 16700A LA with 5 16555D LA cards and all of the cables. There is a 16701B Expansion box and the interconnect cable. There is an external SCSI drive box with a CD rom and a ST318417N drive in it. There are a bunch of micro probes for the LA. A monitor, keyboard, mouse, manuals, and CDs. I also have a very large collection of electronic components in over 40 storage cabinets. There are also a lot of books on electronics. I am asking $250 plus the shipping on the scope. This shipping won't be cheap. $500 plus shipping for the LA. Again shipping will be very expensive. It will take five boxes to ship the LA. I will deliver the scope and/or LA to any where in the lower 48 for the cost of shipping. $500 for the components, cabinets, and books. Shipping is not possible. So it it have to be local pick up. Bring a truck and trailer. PP F&F, Cashiers Check, or Postal Money Order. Please contact me off list. GOD Bless and Thanks, rich! Happy Thanksgiving!

5 years

3
6
0 0

DEC PDP-8/E wanted

by couryhouse＠aol.com

Go for a 8m or f? same omnibus and easer to lift as only onevnibuss panel!? - On Friday, November 20, 2020 John H. Reinhardt via cctalk <johnhreinhardt at thereinhardts.org; cctalk at classiccmp.org> wrote: On 11/20/2020 8:01 AM, Tom Hunter via cctalk wrote: > I know it is the year 2020 but nevertheless what are my chances of finding > a complete and repairable DEC PDP-8/E or as a second choice a PDP-8/I ? > > Is there any hope or should I be just content with my SIMH based PiDP-8/I? > > Thanks > Tom Hunter Funny you should mention... There is a guy in Endicott, NY with a PDP-8/E possibly looking for a new home.? Posted a couple days ago on the VCF DEC Forum <http://www.vcfed.org/forum/showthread.php?77602-DEC-de-accession-value-esti…> > Circumstances require selling off some or all the DECs [ will still have some DGs to play with ]. > One can often get a general idea of value based on prior open market (like eBay) sales but not > enough comparables out there, so would like to get a ball-park idea. > > Prefer to see them stay within VCF but because of the amount previously invested I'm not able to "give it away" > at hobby prices as I would like in an ideal world. Everything is good shape and complete, but not booted up since dry long term storage. May sell some or all of it but will try here before eBay. Here's a quick overview, informed and straightforward feedback much appreciated. > > > Complete PDP-8/E, 8k core, full flip chip/board set (have list), good condition, long dry storage. > > Complete PDP-11/05, 8k core, full flip chip/board set (have list) good condition, long dry storage. > > DECScope VT-52, good condition nothing missing or damaged from long term storage. > > RX-01 dual floppy drive, good condition nothing missing or damaged, from long storage. > > thanks for your help. > Roger in NY Be aware people are telling him his system is probably worth about $1000.? I have seen other 8's go for more on Ebay but I don't recall which model. -- John H. Reinhardt

5 years

6
6
0 0

DEC PDP-8/E wanted

by mosst＠SDF.ORG

On Nov 22, 2020, at 04:01 PM, Chris Hanson via cctalk <cctalk at classiccmp.org> wrote: > >Does anyone know of anyone building them for sale? I dont need a real >PDP-8 in my life with all my other hardware (more Q-bus PDP-11, on the >other hand) but Id love having *a* PDP-8, especially one that doesnt >require enormous amounts of power. Hi Chris, There's a few options in this regard, in increasing degrees of "realness" (and cost!) depending on how you define it. 1) The PiDP-8 by Oscar Vermeulen - Raspberry Pi based 8/i replica running SIMH in a miniaturised case. https://obsolescence.wixsite.com/obsolescence/pidp-8 2) The SBC6120 - Originally by Spare Time Gizmos, but now re-released by the RetroBrew Computers community. This is a 6120 based PDP-8/e replica, with optional front panel. (the panel doesn't appear to be made "officially" anymore, as the design files are missing, but a Russian company appears to have copied it. (I have the Russian version but have yet to assemble it.) https://www.retrobrewcomputers.org/doku.php?id=boards:sbc:sbc6120-rbc-editi… http://www.sparetimegizmos.com/Hardware/SBC6120-2.htm https://chipkin.ru/product/pechatnye-platy-dec-pdp-8-e/ 3) The LD12 / LD20 by Franklin Prosser and David E. Winkel - This is a TTL based clone of a PDP-8/i, originally devised as part of an exercise in the book "The Art of Digital Design An Introduction to Top Down Design" in the early 80s. A few people on vcfed.org have built their own based on these designs, and daver2 has made a run of PCBs (wirewrapped!) http://www.vcfed.org/forum/showthread.php?74125 4) Vince Slyngstad of so-much-stuff.com has scanned many PDP-8 boards and re-created them in Eagle CAD software. I know he's been working on re-creating the 8/e CPU recently but AFAIK it's not finished yet. There are however many OMNIBUS peripheral cards, and a board that combines 32KW of battery backed RAM with a boot ROM. Roland Huisman has also re-created the RX8E floppy controller, and has made an RX02 emulator to go with it, so if you lack an RX01/2 drive you can still have something to boot off. Kyle Owen has also created a neat bit of software that allows you to use a spare serial port and a *NIX system to simulate an RK05. So with all this, it should in theory be possible to build your own 8/e class system soon enough if you can find all the parts for it. http://so-much-stuff.com/pdp8/cad/boards.php https://github.com/Roland-Huisman https://github.com/drovak/os8diskserver Regards, -Tom mosst at sdf.org SDF Public Access UNIX System - https://sdf.org

5 years

1
1
0 0

WIN 1.0

by c.murray.mccullough＠gmail.com

A milestone in 'classic' computing happened Nov. 20, 1985 with the release of Windows 1.0: A GUI sitting on MS-DOS. Text-based input on it's way out! Happy computing all. Murray ? <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

5 years

1
0
0 0

[TekScopes] FS: Tek scope, HP LA, and Electronic components!

by mechanic_2＠charter.net

Hello all, I forgot to put in that I live in Reedsburg, WI 53959 which is near the WI Dells. Sorry about that! GOD Bless and Thanks, rich! On 11/21/2020 4:29 AM, Richard R. Pope wrote: > Hello all, > I have probably developed cancer. I can't get in for treatment. I > have enough lumps in my body that it probably wouldn't make a > difference. So more than likely I am dying. I am asking for everyone's > help. I am selling off all of my processions and simplifying my life > before I die. I don't want to see this stuff end up in the landfill. > Please help out a dying old man? > I have a Tektronix 465B Scope with four probes for sale. A HP > 16700A LA with 5 16555D LA cards and all of the cables. There is a > 16701B Expansion box and the interconnect cable. There is an external > SCSI drive box with a CD rom and a ST318417N drive in it. There are a > bunch of micro probes for the LA. A monitor, keyboard, mouse, manuals, > and CDs. I also have a very large collection of electronic components > in over 40 storage cabinets. There are also a lot of books on > electronics. > I am asking $250 plus the shipping on the scope. This shipping > won't be cheap. $500 plus shipping for the LA. Again shipping will be > very expensive. It will take five boxes to ship the LA. I will deliver > the scope and/or LA to any where in the lower 48 for the cost of > shipping. $500 for the components, cabinets, and books. Shipping is > not possible. So it it have to be local pick up. Bring a truck and > trailer. > PP F&F, Cashiers Check, or Postal Money Order. Please contact me > off list. > GOD Bless and Thanks, > rich! > Happy Thanksgiving! > > > -=-=-=-=-=-=-=-=-=-=-=- > Groups.io Links: You receive all messages sent to this group. > You automatically follow any topics you start or reply to. > View/Reply Online (#173490): https://groups.io/g/TekScopes/message/173490 > Unfollow This Topic: https://groups.io/unft/78408890/89555 > Group Owner: TekScopes+owner at groups.io > Unsubscribe: > https://groups.io/g/TekScopes/leave/1125693/1414938750/xyzzy > [mechanic_2 at charter.net] > -=-=-=-=-=-=-=-=-=-=-=- > > >

5 years

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Osborne 1 keyboard repair - success!

by ccth6600＠gmail.com

I have managed to completely disassemble the bad Osborne 1 keyboard - remove all key mechanisms (body, plunger, main spring and actuator spring), remove the 3 layer membrane from the aluminium backing board and separate all three membrane layers (bottom, spacer and top) - all without damaging or losing any bits. I then carefully cleaned off all adhesive and other sticky gunk from all layers using various solvents including water, isopropyl alcohol and white spirit. The silver tracks remained undamaged as confirmed with a multimeter. I then carefully reassembled the 3 layers, inserted and super-glued the keyboard mechanisms in batches, testing after each batch. I did not use any glue to reattach the 3 membrane layers so they are held together only by the keyboard mechanisms with their prongs protruding through the layers into the aluminium backing plate to which the prongs are super-glued. I sealed the edges around the membrane using Kapton tape to provide protection from dust etc. The tape also attaches the membrane edges to the aluminium backing plate. All keys except the "Alpha Lock" key work perfectly. It appears that I have damaged the address line 7 on the bottom membrane. I can live without "Alpha Lock" so I did not pull everything apart again to fix this un-important key. The conclusion is that membrane keyboards can be fixed if your life depends on it. It is absolutely uneconomic though. I worked about 30 - 40 hours on the keyboard alone. Working Osborne 1s sell for between US$100 and US$300 on Ebay. Regards Tom Hunter

5 years

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ISO: Keronix Omnibus 8K "E1" memory schematics / technical docs

by derschjo＠gmail.com

Hey all -- Got a nice 8KW omnibus core memory board here, designated the "E1" from Keronix, that almost works except that bit 1 is off in the weeds somewhere. Not a lot of information out there on Keronix hardware, anyone have any docs? The board came with a sheet describing the addressing configuration, but that's it. Thanks as always, Josh

5 years

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DEC PDP-8/E wanted

by couryhouse＠aol.com

All the 8 m and f I had when in comp. Biz in the 80s had the full front panel...?? guess I lucked out... Now,8a. Could cone either way into my shop though.... On Friday, November 20, 2020 Pete Turnbull via cctalk <pete at dunnington.plus.com; cctalk at classiccmp.org> wrote: On 20/11/2020 16:55, ED SHARPE via cctalk wrote: > > Go for a 8m or f? same omnibus and easer to lift as only onevnibuss panel!? - Also a switchmode PSU which is much lighter than the -8/E linear supply. But the -8/M normally has the minimal panel with the power key and minimal toggle switches. -- Pete Pete Turnbull

5 years

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Crypto Ancienne: TLS for the Internet of Old Things

by spectre＠floodgap.com

If you have an older pre-C99 system, I've backported a TLS 1.2 library to gcc versions as early as 2.5 as long as it has 64-bit ints (long long, usually) and stdarg.h. https://github.com/classilla/cryanc As a test, with a suitably agreeable (or confusable) browser, here are various period browsers visiting modern HTTPS sites through carl, the included demonstration application which can also act as a TLS proxy. The proxy is running on the same machine, no tricks! OmniWeb, at least two flavours of NCSA Mosaic and MacLynx are all demonstrated. https://oldvcr.blogspot.com/2020/11/fun-with-crypto-ancienne-tls-for.html -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Good software lets me sleep. -- Michael W. Lucas ---------------------------

5 years

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Systems Engineering Laboratories - SEL History

by mooreericnyc＠gmail.com

Hello, I have pulled together a website with links to resources and information on SEL, or Systems Engineering Laboratories. http://mnembler.com SEL was a computer manufacturer in the 60s and 70s which later was acquired by Gould and then Encore. They made many major innovations and were instrumental in the success of the Apollo program. The website is still a work in progress, but I did want to share it with yall. -Eric

5 years

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evil thing to ask but I need keystroke logger

by boris＠summitclinic.com

If it's a windoze system, modified a bare-bones keylogger about 10 years ago which records all keystrokes (can get time of key_press, key_release) and also monitors all mouse clicks as well as title of window clicked on. Can also record every mouse event which takes up a LOT of disk space. Just hooks keyboard and mouse events and works even on hospital systems which are fairly locked down. Written in VB6 and also wrote a program to either look at keyboard/mouse events over time or to dump text typed in. Has saved lots of work for me as windoze has a bad habit of crashing when I'm 20 minutes into writing a note and can get all keystrokes that were saved to disk during this time. Initially written to find out how much time I spent IFOK. Also has a stealth mode where keylogger window hidden and can be brought up with a key sequence and then need a password to stop it. Not very stealthy as can be easily terminated through ProcessExplorer. Could always use Wireshark to capture all packets exchanged while they're on computer. >I have kids that after corona are in lockdown, so they are on >computers all the time. >Supposed to be doing schoolwork, but no, feedback from the school is negative. > >Can I trap some traffic from these PC's and what software would you recommend? > >Randy

5 years

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evil thing to ask but I need keystroke logger

by rdawson16＠hotmail.com

I have kids that after corona are in lockdown, so they are on computers all the time. Supposed to be doing schoolwork, but no, feedback from the school is negative. Can I trap some traffic from these PC's and what software would you recommend? Randy

5 years

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Emails not appearing

by cctalk＠gtaylor.tnetconsulting.net

Hi, On 11/19/20 11:25 AM, Richard Milward wrote: > Yes, my latest message did show up today, I just saw it. > But I don't understand your "-cctalk / +direct" comment. I removed cctalk the mailing list that I received the email from. I then added you as a direct recipient. > I don't subscribe to the list, I get enough emails as it is! Did you send an email to the cctalk mailing list? If you sent to it and you aren't subscribed, perhaps your messages have been held for moderation. That would account for delay. > Thanks. You're welcome. -- Grant. . . . unix || die

5 years

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XpressWare v8.1 or above (software for Tektronix X11 terminals)

by francis.massen＠gmail.com

Hello, I have the NCDbridge v. 4.0 software, and could send you a copy. I am still looking for XpressWare, unable to find. I use for host a Raspberry Pi with TFTP (can not get NSF to connect..), the Tektronix kernel (os.350) and other stuff is in /opt/tekxp/boot on the host. Best regards, Francis Massen https.//computarium.lcd.lu

5 years

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Emails not appearing

by rsmilward＠frontier.com

I've sent a few things to this address, but they haven't shown up in the regular digests I get. How do I get something into the digest so other folks can see it? (Or does it have to be about DEC machines? Ha-ha!) Thanks! -- **Richard

5 years

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WTB: AUI cables

by cctalk＠gtaylor.tnetconsulting.net

Hi, Does anyone have any AUI cables for 10Base5 that they would be willing to sell? I'm looking for a couple of them 1-2 meters long. I will eventually* need them for my 10Base5 / Thicknet / Hosepipe network segment. In ham radio net style, chat on list, and conduct business directly / off list. *I still haven't found sufficient Round-to-Its to get off my posterior. -- Grant. . . . unix || die

5 years

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neat VGA tester

by w2hx＠w2hx.com

For you folks that work on machines with VGA monitors. https://www.mpja.com/11-16-20.asp?r=344017&s=2 I don't own one but it seemed interesting enough to pass on. 73 Eugene W2HX

5 years

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WTB: Amiga 8375 Agnus IC (NTSC or PAL) or Amiga 600 motherboard

by ethan＠757.org

Looking for an Amiga 8375 Agnus IC (Amiga 600, Amiga 500 Plus.) NTSC is what I have now but the PAL version might work. Also interested in an Amiga 600 motherboard, can deal with it if bad caps and cap damage. Thanks -- : Ethan O'Toole

5 years

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Seagate Elite "reverse surging" noise

by jules.richardson99＠gmail.com

I picked up a couple of 9GB Seagate Elite SCSI disks the other day (model 410800N, 1995-vintage but 5.25" FH units). Both drives spin up, both pass r/w tests successfully. On one unit, the spindle motor sound is constant. On the other, however, it makes a sound that I can best describe as "reverse surging", where every 5 seconds or thereabouts there's a very brief lowering in tone before the "normal" sound resumes. Anyone familiar with the Elite range know if "some of them just do that", or if it's likely to be some form of fault (which may only get worse)? I've never encountered a disk which does this before; my ear's not detecting any kind of speed increase prior to the decrease (and I don't know if that's what's really going on or not), but that's what my brain wants to think is happening. However, if the speed really was fluctuating to the point that I could hear it then I'm surprised that I'm not getting read/write problems. cheers Jules

5 years

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TU58 dumps. Mostly VAX 11/750 AND 11/730 diags and console tapes.

by mattislind＠gmail.com

I dumped almost 50 TU58 tapes. They were given to me by an ex DEC FS engineer. Most of them are various 11/750 diagnostics. The tapes or not the official DEC TU58 tapes but home brewed tapes used in FS so there might not be an exact match to existing lists of official tapes. But they might be useful anyhow. I have seen diags for CI 750, DW750, RH750, DT07, Various Ethernet, UDA50, TK50, DZ32, DMF32, DH11 and some more standard 11/750 MIC, DPM tests and instruction tests. Then there were some 11/730 tapes. Console and two diag tapes. I collected everything in a google-drive-folder https://drive.google.com/drive/folders/1CkcXVJS9aJDwD4ihdj27QYcgkm7gEdrQ?us… This folder also contains some older dumps I have done. Both DECtape and DECtape II. All dumps are aggregated into a document trying to give a hint on what the dump contains. Beware that some dumps failed to read correctly and are just partial. But it should hopefully be clear from the file size. https://docs.google.com/document/d/1vD8erJM-HitSd4kRXt6_Rzl403HDoprr08EY69u… /Mattis

5 years

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Floppy pressure pad replacement?

by deramp5113＠yahoo.com

I?ve got some adhesive backed industrial felt that I punch with a leather punch. I?ve replaced many of those pads on 8? and 5.25? drives and the felt pad works well. Shoot me an email and I can send you a few pads if you need. Mike

5 years

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Looking for Console MUX cable for HP E45

by rp＠servium.ch

I recently acquired a HP 9000 E45. Unfortunately, it came without the console MUX panel and cable. I was lucky to find an ADP II (5062-3054) in my "pile of useful stuff", but sadly, the 78pin to DB9 cable is missing. The part number of the cable is 5060-3074 though there might be others that work (5062-3074 is mentioned a few times in the HP forums, but not in the manual so I'm not 100% certain it's the right cable). Does anyone have a spare cable or an ADP or DDP with the cable they would let go for a reasonable price? Or have one and could tell me which 9 out of those 78 pins go where on the DB9 connector? thanks Rico

5 years

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Wanted: listing RIPL ROS IBM3705 or Amdahl4705

by h.j.stegeman＠hccnet.nl

Hi all, I searching for a scan or copy of the ROS listing of a IBM 3705 or Amdahl 4705 REMOTE. I all ready have the local single- and multi-channel attached versions, but still missing the remote one. Anyone who can? help me ? Thanks Regards Henk www.ibmsystem3.nl

5 years, 1 month

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Microvax 3100 VMS 7.3 password reset

by athornton＠gmail.com

I for one was thrilled to see that there will be x86_64 hobbyist licenses for VMS. I have an emulated VAX on a Raspberry Pi (I don?t know if my 11/730 works, but I doubt it?it?s nowhere near a 220V power supply and it?s not been much of a priority, and I have a VAXStation 3100 that doesn?t pass POST even with a freshly-burned ROM) running OpenVMS 7.3, and a real AlphaServer 800 running 8.4. I mean obviously the NEXT thing to do is start bugging VSI for ARM support?given that the OS runs on VAX, Alpha, Itanic, and x86_64, how much really crucial and hard-to-port assembly can be left in it??and given the way datacenters are trending, it might not even be a commercially stupid move. I want to run VMS on my phone (or my next Mac). Doesn?t everyone? Adam

5 years, 1 month

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Next project: 11/24. Does it need memory?

by jnc＠mercury.lcs.mit.edu

> From: Jay Jaeger >> 2--M7134 KT24 Memory map > M7891 UNIBUS Memory (256K, I think, presumably addressed for 0). If that's all the memory you have, the KT24 isn't really doing anything (well, monitoring power; holding boot PROM's; etc). Is your MS11-L configured to be EUB memory, then? If no KT24 is plugged in, the CPU detects that there isn't one there, and permanently, statically maps the UNIBUS straight across to the bottom 256KB of EUB space. (Presumably a low-cost option for the /24.) Although the 'straight across' mapping only applies to UNIBUS->EUB cycles, not EUB->UNIBUS cycles, such as those from the CPU; but the TM says [pg 2-31 in the 003 version] that if E124-S6 is OFF, "the lower 18 bits of every address go to the UNIBUS", which implies that when OFF, UNIBUS memory appears at 0 in the CPU's address space. So it should work as UNIBUS memory, with E124-S6 OFF; it would be interesting to verify that. The TM also says (pg. 2-40) "systems with UNIBUS memory ... require changes to be made to the mapping jumpers [on the KT24]". > Let me know if you want me to go thru the process of > .. > 2) Pull the boards and document What kind of box is your -11/24 in, a BA11-A, or BA11-L? If the latter, I'd be really grateful for some closeups of the interior, so I can put mine back together, and do some of these experiments. (Yes, yes, I know I should have taken pictures before I took it apart; I was just starting, and was going by how we used to do things, back before there were digital cameras.) I could probably work it out by staring hard, and thinking harder, along with the prints, but photos would be a lot easier! :-) If it's a BA11-A, I'm still trying to get an image of the special power adapter used to turn the bus bar of the BA11-A into the 6/15 pin Mate-N-Lok connectors used by the -11/24 backplane. Noel

5 years, 1 month

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