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

Talking to DEC disks controllers with non-DEC hardware(was

by pete＠dunnington.u-net.com

On Jun 6, 0:40, Tony Duell wrote: > > Last time I saw a DX11, it was a whole rack, not just one card. I > > Yes. 8 rows of flip-chip cards (almost all slots used) + a PSU, a lights > panel, and a power interlock IIRC. > > > think I know where to find something to connect it to, though :-) > > Which, presumably, is even bigger than my 11/45 system :-) A bit :-) The pile of cables is probably bigger than your 11/45. It's an IBM belonging to Jim Austin, who lives not far from me: http://www.austinfs.fsnet.co.uk/ -- Pete Peter Turnbull Network Manager University of York

23 years

1
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AMP connector for DLV-11J

by ssj152＠charter.net

Does anyone have a couple (2) of the AMP 10 pin connectors (with unused pins) used with the DLV-11J 4 port serial I/O boards or know where I could purchase them? What I actually need is a RS232 cable DB25 to AMP 10 ?, but I am willing to make the DB25 part myself, something I've done zillions of times. I am currently working on bringing up my "new" PDP-11/23 that I recently picked up. This chassis, once verified OK, will be used as a test bed to check out the bunch of QBUS boards I have, including CPU's, memory, and some I/O, mostly serial. Eventually I hope to bring up a 11/53 like the one Jonathan Engdhal built. Thanks in advance! Stuart Johnson

23 years

5
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Talking to DEC disks controllers with non-DEC hardware(was

by pete＠dunnington.u-net.com

On Jun 5, 21:45, Tony Duell wrote: > I got a boatload of comms cards in a clearout. DUP11s, DMC11s, DMR11s, a > KMC11, etc. Even a couple of DX11s (not, that's not a typo for RX11). > Pity I've not nothing to connect the latter to. Last time I saw a DX11, it was a whole rack, not just one card. I think I know where to find something to connect it to, though :-) -- Pete Peter Turnbull Network Manager University of York

23 years

2
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[Fwd: [swap] WTB: Technical/Scientific Mac Hardware + Software]

by jrasite＠eoni.com

This might be of interest to someone here... Jim -------- Original Message -------- Subject: [swap] WTB: Technical/Scientific Mac Hardware + Software Date: Thu, 5 Jun 2003 17:39:44 -0400 From: "Tom Bannon" <bannonth(a)egr.msu.edu> To: "LEM Swap List" <lem-swap(a)mail.maclaunch.com> LEM-Swap is for buying & selling Mac stuff. It is not a discussion list. See the FAQ for guidelines on postings, feedback, and dispute resolution. -------------------- To those of you that come across box lots of software or unusual hardware: I'm for older versions of scientific analysis, data logging, image analysis software that runs on biege Powermacs or even 68ks. Hardware interfaces that control scientific instruments are also of interest. Things that are biotech related would me most useful, but if you've bought box lots of software or hardware and think something might be laboratory related drop me a line. Its great to put older Macs to work in the lab even if the software/instrument isn't state of the art. Tom Bannon 48917

23 years

1
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Qbus Backplanes

by pete＠dunnington.u-net.com

On Jun 5, 22:41, Peter Turnbull wrote: > On Jun 5, 17:31, vance(a)neurotica.com wrote: > > > > And what do you do if you want to use a QQQQ-only processor in a QQCD > > backplane? Put it in the QQQQ-end? > > I've never heard of a QQQQ-only processor. Do you have one in mind? OK, so I've just thought of one that might be. An early 11/03 quad-height M7264 was meant for a Q-Q H9270 backplane and presumably that's what Sridhar is thinking of. However, I don't think it's what he calls a QQQQ-only processor. I'd have to look at the print set or a board to be sure, but IIRC the M7264 actually has Q-Bus on its A&B slots, so it would be OK in a Q-CD backplane, so long as the module underneath it didn't use the upper contacts on its own C&D slots (C and D aren't bussed; the lower contacts on C&D are only connected to the upper contacts of the slot below). However, just before I hit "send", Sridhar told me what he *was* thinking of: > Yeah. DECsystem 5500. (MIPSFAIR-2) Chuch McManis told me it's > QQQQ-only. It normally fits into a BA430 which is a BA440 with no > PELE stuff in it. It uses out-of-band signaling (on ribbon cables) > for RAM. The short answer is "I don't know". FWIW, here are my thoughts. I would be amazed if it put any signal(s) on the relevant pin(s) on *both* the A&B and C&D slots (because that would lead to multiple signal paths). I'd be rather surprised if it put some on A&B and some on C&D, but if it did, or if it put QBus signals on C&D, it would definitely have to go in the first Q-Q row. Or maybe the second, something I saw about it suggests an I/O module is supposed to go in front of it, and then the argument applies to the I/O module, really. However, the logical way to build such a board would be with the QBus signals on A&B, like I believe the M7264 does -- unless the bus length is critical, and it needs the shortest path between the first and second rows, which is the C&D slots. But would it physically fit any other backplane than its own? Don't those new-fangled things have different handles to anything that fits a Q-CD backplane? Chuck? -- Pete Peter Turnbull Network Manager University of York

23 years

1
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Teletype

by dwightk.elvey＠amd.com

Hi Bryan That is OK, as it turns out, he had a 50Hz motor anyway to match his line. He seems to have moved on to other more serious problems. Dwight >From: "Bryan Blackburn" <oldcomp(a)cox.net> > >Okay... That's what I get for not reading the original post! > >-Bryan > >Dwight K. Elvey wrote: > >>Hi >> The right idea, wrong direction. I would think that a >>60Hz inverter would work fine. You could get one of those >>automatic leveling battery chargers, a small gelcel and >>a 60Hz inverter. >>Dwight >> >> >> >> >>>From: "Bryan Blackburn" <oldcomp(a)cox.net> >>> >>>Wouldn't it be so much easier to make a power inverter to run at 50 Hz >>>and save all the time and expense of finding gears & etc. & etc.?? I >>>have a power inverter that would be a simple cap change (two of them) to >>>run 50 Hz. Output power is about 250 Watts now, maybe 175-200 at 50 Hz >>>(or would it be more?)? How much power does a 33 take? Discuss... >>> >>>-Bryan

23 years

1
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GP-10

by dwightk.elvey＠amd.com

Hi Matt I don't have a GP-6 or GP-10. I do have a EC-1. I would suspect that you could do the bouncing ball simulation with the GP-10 ( I assume that means it has 10 op-amps ). The things you need besides capacitors and resistors is a couple of diodes for the nonlinear things ( like the ball bounce on the ground ) and sine/cosine source. The computer needs reset relays to set initial values for the integrators and pots to generate the constants. The HeathKit has you make an external sine/cosine source, using 60Hz from the wall. This typically doesn't do vary good with the noise that most modern equipment has, since they make the 90 shift with a highpass. The original Heathkit example used 9 op-amps but I came up with a way to do it with only 8. This leaves two to make a sine/cosine oscillator. I'll have to dig up the schematic that I put someplace. You can live without the sine/cosine, since it is just to make the ball round. To display, you need an oscilloscope or a X-Y plotter. As for setting the unit up, I suspect there is a balance adjustment for each op-amp. For my tube machine, I found that I had to balance the integrators for zero drift instead of zero voltage offset. I suspect that this is because input current offset and input voltage offset are not the same thing. Dwight >From: "Matthew Wadham-Gagnon" <mwadha(a)po-box.mcgill.ca> > >Hi Dwight, > >I've been looking for examples/labs that would take me through the correct >procedure to setup/operate a GP-10 analog computer. I found your email in a >discussion about the GP-6 along with links to two labs on how to use it. They >seem pretty good except for a few details that probably apply specifically to >the GP-6. > >Thanks, > >Matt > >Matthew Wadham-Gagnon >McGill University, Montreal >Mechanical Engineering, Honours

23 years

1
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Teletype

by dwightk.elvey＠amd.com

Hi The right idea, wrong direction. I would think that a 60Hz inverter would work fine. You could get one of those automatic leveling battery chargers, a small gelcel and a 60Hz inverter. Dwight >From: "Bryan Blackburn" <oldcomp(a)cox.net> > >Wouldn't it be so much easier to make a power inverter to run at 50 Hz >and save all the time and expense of finding gears & etc. & etc.?? I >have a power inverter that would be a simple cap change (two of them) to >run 50 Hz. Output power is about 250 Watts now, maybe 175-200 at 50 Hz >(or would it be more?)? How much power does a 33 take? Discuss... > >-Bryan > >Tony Duell wrote: > >>>Hi >>> One could buy a new pulley and add some additional capacitance >>> >>> >> >>IIRC, the coupling between the motor and the rest of the mechnism >>consists of a pair of helically-cut gears on the end of the motor (one on >>the motor spindle, the other on a separate spindle). The driven gear is >>moulded integrally with a sprocket for a toothed belt that goes to a >>larger sprovket on the transmitter shaft. >> >>The gears are almost certainly custom parts and would not be easy to get >>now (unless you know of a souce of Model 33 parts...). Making them would >>also be non-trivial, I think, at least in most home workshops. >> >> ><snip>

23 years

2
1
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Sig-Net disk reading

by gareth.knight＠ahds.ac.uk

Hi folks, I'm having trouble converting some Sig-Net (http://www.old-computers.com/museum/computer.asp?st=1&c=810) SD/DS 5.25 disks to a DOS format. I've tested some of the instructions on http://www.seasip.demon.co.uk/Cpm/oldflop.html (22Disk, PCW Explorer, etc.) with little success. Can anyone provide other suggestions for likely DOS apps to try? Cheers, Gareth Amiga History Guide http://amiga.emugaming.com

23 years

2
1
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Qbus Backplanes

by pete＠dunnington.u-net.com

On Jun 5, 17:31, vance(a)neurotica.com wrote: > > And what do you do if you want to use a QQQQ-only processor in a QQCD > backplane? Put it in the QQQQ-end? I've never heard of a QQQQ-only processor. Do you have one in mind? -- Pete Peter Turnbull Network Manager University of York

23 years

1
0
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Qbus Backplanes

by vance＠neurotica.com

Hello people. Is there any way to tell if a backplane is QQQQ or QQCD by looking at it, and without having to pull the backplane out of the chassis? What if I can find the model number of the chassis? Peace... Sridhar

23 years

6
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Unknown Apple 2 cards

by julesrichardsonuk＠yahoo.co.uk

>> I came across a whole boxful of Apple II cards at the weekend that I'd >> forgotten I actually owned. > > Things get buried way to easily in this "Hobby", yes they do - I've been moving around too much the last few years so pretty much everything's been in storage. Hopefully all of my Sinclair and Acorn stuff should be going on loan to a local technology museum at some point for display - I hate the way everything's shut away in a room at the moment (er, actually rooms, loft and with the bigger stuff in the garage :-) > I was never really much of an apple user, came by my collection by > fluike and just kept adding to it. nor me. I was given an Apple /// with a couple of ProFile hard drives a few years back and it started from there - I'm not sure what strange cards are lurking in the machines themselves at present. If anyone comes up with anything interesting on these boards I'll let you know; I've posted the same questions to comp.sys.apple2 but I'm not sure how active the group is these days. As far as the Z80 card goes a quick search of the 'net revealed a lot of 'Z80 card' boards but not 'Z80 card II' boards. I have no idea if the different name is significant or not yet :) cheers Jules

23 years

1
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Unknown Apple 2 cards

by julesrichardsonuk＠yahoo.co.uk

> Is that Mitac computer an Apple II clone? I hope to find out in the next few days :-} I believe I was given it about 6-7 years ago and it's been on the list of things to look at someday ever since!! It was next to the box of cards in the room where most of my comps are stored, so I fished it out with the hope of trying to see if it works sometime over the next few days. It almost certainly appears to be a Japanese Apple 2 clone though, with built-in disk interface, 80-column output, RF output (unsure whether that's NTSC or PAL or even something else yet), joystick interfaces etc. all on two boards within the machine - there's even a Z80 CPU in there but I'm not sure if it behaves like a 'proper' CP/M card or if it's just there to control some of the machine's hardware. Pretty loaded-up little beast anyway. I've got both 120V and 220V power supplies for it; why someone would have had both I'm not sure but there you go. I've also got two of the units that connect to the expansion socket at the back of the machine and provide standard (assuming it is a clone!) A2 bus connectors - again I have no idea why I have two, not like I can use more than one at once anyway! My Apple 2 disk drives and any kind of suitable monitor are all too far buried at the moment for me to get at them, but I'll check the machine over for obvious probs before trying to hook it up to my TV sometime in the next few days. I couldn't find any information on the machine on the 'net, but then I suppose in the Apple 2's heyday there were an awful lot of clone machines around. cheers Jules

23 years

1
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Systems Enhancement Corporation Power Administrator 800

by Robert_Feldman＠jdedwards.com

It might be that the DE-9's don't have a standard PC serial pinout. At work, we have a UPS that uses a DE-9 for programming, but the pinout on the cable (a 940-0024C; Googling produces a number of hits) is Female Male 1-4 2------------2 3------------1 5------------6 6 NC 7-8 9 NC -----Original Message----- From: Dave Brown [mailto:tractorb@ihug.co.nz] Sent: Thursday, June 05, 2003 1:15 AM To: cctalk(a)classiccmp.org Subject: Re: Systems Enhancement Corporation Power Administrator 800 Maybe you drive it over the Ethernet port- I saw one of those devices a couple of days back that had 8 or 10 power outlets, the DIP switch and a single Ethernet port. Nothing else. Going to try and score it too, but 'he-who-has-it' is still considering if he really wants it! DaveB ----- Original Message ----- From: "Geoff" <geoff(a)hasker.net> To: <cctech(a)classiccmp.org> Sent: Thursday, June 05, 2003 9:38 AM Subject: Systems Enhancement Corporation Power Administrator 800 > I have come across what seems to be a remote outlet/power sequencer device > from the Systems Enhancement Corporation called the Power Administrator 800. > On the rear it has two DB-9 male ports, which I assume can be used to program > this device. <snip>

23 years

2
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OT: FW: THIS IS GREAT!!!!!!!!!!!!!!!!!

by rigdonj＠cfl.rr.com

This is OT but it's too good not to pass on. I'm sure that everyone on the list can appreciate it. Joe > >Subject: THIS IS GREAT!!!!!!!!!!!!!!!!! > > > > >Let's see if I understand how the world works lately... > If a man cuts his finger off while slicing salami at work, > he blames the restaurant. > If you smoke three packs a day for 40 years and die of > lung cancer, your family blames the tobacco company. > > If your neighbor crashes into a tree while driving home > drunk, he blames the bartender. > > If your grandchildren are brats without manners, > > you blame television. > > > If your friend is shot by a deranged madman, you blame > the gun manufacturer. > > > > And if a crazed person breaks into the cockpit and tries > to kill the pilot at 35,000 feet, and the passengers > kill him instead, the mother of the deceased > blames the airline. > I must have lived too long to understand the world as it >is anymore. So, if I die while my old, wrinkled butt is >parked in front of this computer, I want you to blame >Bill Gates...okay? > > > > > > > >Bye! >Have a Great Day! > > > > > > > > > > > > > > > >____________________________________________________ > <http://www.incredimail.com/redir.asp?ad_id=309&lang=9> IncrediMail - Email has finally evolved - <http://www.incredimail.com/redir.asp?ad_id=309&lang=9> Click Here > >Attachment Converted: "C:\EUDORA\Attach\FWTHISIS.htm" >Content-Type: image/gif; > name="FwTHISIS1.gif" >Content-ID: <710815C8-121F-4139-94FE-6336349A8D6F> >Content-Description: FwTHISIS1.gif >Content-Location: FwTHISIS1.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISIS.gif" >Content-Type: image/gif; > name="FwTHISIS2.gif" >Content-ID: <FCB9C175-2BC1-401A-A515-8DAA900E612E> >Content-Description: FwTHISIS2.gif >Content-Location: FwTHISIS2.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI1.gif" >Content-Type: image/gif; > name="FwTHISIS3.gif" >Content-ID: <D8C2032E-045D-40F8-98CD-7A89E641F4B5> >Content-Description: FwTHISIS3.gif >Content-Location: FwTHISIS3.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI2.gif" >Content-Type: image/gif; > name="FwTHISIS4.gif" >Content-ID: <8E209AD2-FCAA-44FF-8769-46BE8AAD29B2> >Content-Description: FwTHISIS4.gif >Content-Location: FwTHISIS4.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI3.gif" >Content-Type: image/gif; > name="FwTHISIS5.gif" >Content-ID: <87ED2775-2554-4B7D-8C29-191C2D02F7C2> >Content-Description: FwTHISIS5.gif >Content-Location: FwTHISIS5.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI4.gif" >Content-Type: image/gif; > name="FwTHISIS6.gif" >Content-ID: <0589F5D4-900C-4878-AF7F-9B3BE3BA6D2B> >Content-Description: FwTHISIS6.gif >Content-Location: FwTHISIS6.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI5.gif" >Content-Type: image/gif; > name="FwTHISIS7.gif" >Content-ID: <0D1B9DEF-5218-452D-9D13-B9B0881FB148> >Content-Description: FwTHISIS7.gif >Content-Location: FwTHISIS7.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI6.gif" >Content-Type: image/gif; > name="FwTHISIS8.gif" >Content-ID: <8C1048EF-1066-4862-B1ED-3F5618D8F126> >Content-Description: FwTHISIS8.gif >Content-Location: FwTHISIS8.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI7.gif" >Content-Type: image/gif; > name="FwTHISIS9.gif" >Content-ID: <52DD19BB-8145-415C-B368-5609A0381025> >Content-Description: FwTHISIS9.gif >Content-Location: FwTHISIS9.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI8.gif" >Content-Type: image/gif; > name="FwTHISIS10.gif" >Content-ID: <DC050A7C-43B1-4576-977B-FFF8CE02C708> >Content-Description: FwTHISIS10.gif >Content-Location: FwTHISIS10.gif > >Attachment Converted: "C:\EUDORA\Attach\FwTHISI9.gif" >Content-Type: image/gif; > name="IMSTP.gif" >Content-ID: <BE513365-038F-4C72-845B-8811A6E46C10> >Content-Description: IMSTP.gif >Content-Location: IMSTP.gif > >Attachment Converted: "C:\EUDORA\Attach\IMSTP.gif"

23 years

2
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Cool little modulator

by cb＠mythtech.net

>> Sellam indicated that he thinks the modulator came with all IIc's, but I >> have to question... Why? The IIc already has a composite video out, so >> why also ship with the modulator. > >To make it easier to hook into a television. Trust me on this one. Never mind... I think I just realized it. I took another look at the units and realized I was mistaken as to which one had the Channel 3/4 selector switch. I thought Apple included it into the "Switch Box", leaving the "Modulator" to be completely redundant with the composite output that the IIc already has built in. In fact, I was mistaken, the 3/4 switch is on the "Modulator", which means it isn't a composite output but rather a RF output using an RCA connector (as might be expected to plug into the Switch Box). Realizing my mistake on which carried that ability, I now fully understand why Apple included it since it in fact is NOT the same output as already on the IIc. -chris <http://www.mythtech.net>

23 years

1
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someone should rescue these

by uban＠ubanproductions.com

There is a nice set of H960 racks up on eBay, about to close in the next hour or so: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3417760448&category=11831 No, I don't have anything to do with this except that I hate to think what will happen to them if no one picks them up. I would love to have them, but NJ isn't in my neck of the woods. If someone was willing to pick them up for me and store them until I could drive out, that would be great! These cabinets don't become available very often and this set appears to have the side panels, which can be hard to find all by themselves. --tom

23 years

2
2
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PDP-7 - Problems (Tore Sinding Bekkedal)

by grg2＠attbi.com

If nobody's mentioned these: #1: Check the power supply voltages. Filter capacitors tend to dry out and voltage regulator transistors tend to fail. If the voltages are more than 5% off I'd do some serious power supply investigation. If the output voltages are low, don't try boosting them up by turning up the adjustment knob! There's probably something more seriously wrong. Turning up the knob is going to just pass thru more ripple or unregulated voltage.

23 years

1
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someone should rescue these

by cb＠mythtech.net

>No, I don't have anything to do with this except that I hate to think what >will happen to them if no one picks them up. I would love to have them, but >NJ isn't in my neck of the woods. If someone was willing to pick them up >for me and store them until I could drive out, that would be great! These are actually just about next door to me. However, I don't have much in the way of storage space left. When would you be looking at picking them up? I'm also curious if I know the seller. I have a friend who's company (in Mahwah) just merged with another and has been unloading a ton of PC equipment (mostly free). Of course, that doesn't mean much, as Mahwah where these are, is home to a number of large industrial campuses and they could be from any one of them. -chris <http://www.mythtech.net>

23 years

3
2
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Texas Instruments TI-99/4A in box available

by vcf＠siconic.com

Marlene MacCorkle has a TI-99/4a in the box that she'd like to sell. She's not asking much. Send your offer to her directly. Reply-to: <marlene_f_maccorkle(a)yahoo.com> Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years

1
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HP R332 Touch screen

by peterbrown10＠hotmail.com

>Hi Peter, Hi Joe, {sorry if this is a little muddled - I just got off a 10 hour flight...} > I picked up a pile (8 of them IIRC) of these things recently. I've acquired two of them too. One without keyboard or any other accessories, the other with keybaord and three rather inportant cables... The first cable is phono to phono, about 6 inches long and connects the rear panel HP 9000 audio connector to the audio input on the HP 332 chassis. The second is a 6 inch HPIL to HPIL connector that jumpers the HP 9000 card keybaord input to an HPIL socket in the rear panel that just connects through to a front panel HPIL for the front panel hinged keybaord. The third cable connects the phono video out from the HP 9000 card to the 'VGA' connector on the rear panel (3 row connector 15 pins). Only four of the pins in the 'VGA' connector are used. I haven't buzzed it through but the pins used are 1, 5, 11 and 15 only. HP part number is A1300-60036 Without the video jumper cable in place then the display will only show retrace lines when the brightness is turned right up - so it can be mistaken for not working. >They had >been surplused by a large company and the integrated keyboards were >missing. So the surplus company that got them threw them out. BUT the KB >cable runs through the machine then out the back and then plugs back into a >standard HP-HIL keyboard port. So I'm thinking that I can use a standard >HP-HIL keyboard. Absolutely - I have done htis and it works fine. With the correct cable you can also drive the monochrome display from another computer system >I've tried one of the machines and I can't get a display >on it. I haven't had time to check further and I haven't checke dhte >others. See my comments above - if you see retrace lines whenq the brightmess is turned up then it is probably working OK. >I'm pretty certain that these have an internal hard drive. sorry no >advice on how to use the touch screen. If you had a spare hard drive thenI'd be interested. I'm currently booting my systems off an external harddrive. >Do you know if an external display can be connected to these? This one >appears to be running but nothing is displayed on the screen. I think it >may have a bad screen. See my previous comments I'll have a play with the touch screenand see if I can come up with something. Cheers Peter Brown _________________________________________________________________ Use MSN Messenger to send music and pics to your friends http://www.msn.co.uk/messenger

23 years

1
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PDP-7 - Problems

by toresbe＠ifi.uio.no

Hey! We have two main problems: 1) The RUN button The RUN button crashes the CPU. So does a RUN invoked by the end of Paper-Tape End-Of-Tape. When I stop the CP and CONTINUE, the processor just goes between FETCH and EXECUTE states on one single instruction. I made a 9-step JMP program, which I toggled in. I EXAMINEd 0 and CONTINUEd from 1 which contained a JMP to 0 which jumped to 7, and from there it went to 70, 700, 707, 770, 777, to 0. By holding the CONTINUE button, it ran at least 1000 cycles at max speed. 2) IOT Instructions (Input-Output Transfer) Just plain don't work. When I READ-IN a Paper-Tape, The Memory Address increments, starting when the data does. During this process, Memory Buffer = MA. When the EOT is reached on the Paper-Tape Reader, RUN is invoked (Which crashes the CP, see section 1) These are sure signs of communication going on between the CP and the PTR. Unless, the EOT has some sort of more direct connection. Not even the Status lights illuminate. They seem to be wired into the IO rack (which makes sense as most of what it monitors is I/O equipment.. TTY, PTR, PT-Punch etc. Any help from any DECies greatly appreciated! I have many spares, and if I don't have the spare in question, I know many who do. Regards Tore S Bekkedal toresbe(a)ifi.uio.no +47 91 85 95 08 <GMT+1!

23 years

1
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Teletype

by toresbe＠ifi.uio.no

The motor is 50Hz. Yes, you'd think the motor would be 235v, but it seems not. The 235-115v converter makes the stand go "DONG" when you plug it in and makes a loud 50Hz hum. Who needs a beatbox? Plug the TTY in, put scotch tape on the BREAK key and you have a 600 BPM drummer ;)

23 years

1
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GP-10

by mwadha＠po-box.mcgill.ca

Hi Dwight, I've been looking for examples/labs that would take me through the correct procedure to setup/operate a GP-10 analog computer. I found your email in a discussion about the GP-6 along with links to two labs on how to use it. They seem pretty good except for a few details that probably apply specifically to the GP-6. Thanks, Matt Matthew Wadham-Gagnon McGill University, Montreal Mechanical Engineering, Honours

23 years

1
0
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Xerox 630 System Disks

by wjmwjm＠mail.asisna.com

I saw that in December of 2002 you had all four Xerox System Disks for the 630 Memorywriter. Do you still have same? How much? Bill Morton 5412 South Glendora Spokane, WA 99223

23 years

1
0
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GP-10

by mwadha＠po-box.mcgill.ca

Hi Dwight, I've been looking for examples/labs that would take me through the correct procedure to setup/operate a GP-10 analog computer. I found your email in a discussion about the GP-6 along with links to two labs on how to use it. They seem pretty good except for a few details that probably apply specifically to the GP-6. Thanks, Matt Matthew Wadham-Gagnon McGill University, Montreal Mechanical Engineering, Honours

23 years

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New to list...

by healyzh＠aracnet.com

> --- jamesd <jdickens(a)ameritech.net> wrote: > > Hi new to list... just won a SUN 4/690mp... > > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3027472460&category=1121… > > Wahoo! Not quite my reaction after looking at what he got, mine is OUCH! My advice, ask the seller how much he'll charge you to keep it. Do you realize how big and HEAVY that stuff is?!?! OTOH, if you did realize what you were bidding on, congrantulations, you got it for a killer price :^) What can I say, big Unix boxes for hobbyist use scare me, I'd much rather have a nice small modernish 2-4 processor Unix workstation. Zane

23 years

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Apple IIgs question..

by dholland＠woh.rr.com

Hi, all.. ( Gee, I get to ask a legitimate classic comp question.. ) Anyways, I've a A2GS sitting here, that I've been beating myself over the head with for about two days now.. (Yes, I'm stubborn) I've been trying to get ADT (serial) working between the GS, and my PC. I've gotten it to work just fine PC -> GS. (I even had my PC type a copy of Dos3.3/ADT/ADTgs in via the serial port at 300baud.) Anyways the stumper is in the GS -> PC direction. Nothing works. I've tried the modem port on the GS, as well as 2 different super serial cards. I finally got desperate enough to pull out a RS-232 break out box, and a scope. (Plus a couple of dweebie basic programs) What I find is the Apple serial communications looks like its running at about +/- 4v. (This is on the builtin modem port. I can't get a SSC to work either.) (The waveform also appears to have a fair amount of ring on the voltage swings, but that may be normal) I'm guessing that the +/-4volts isn't enough for my PC to recognize it. Question #1: Does anyone have any thoughts about my theory that the PSU is weak, or suggestions where else to look? Question #2: Presuming question #1 is reasonable, schematics for a GS PSU? Thanks, David

23 years

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Unknown Apple 2 cards

by Lee.Davison＠merlincommunications.com

Hello Jules, > ZIF-socketed card ("unknown_04.jpg" on the website): The ZIF socket > is a 28-pin unit. I'd say it was a programmer, but wouldn't it need > an external 24V (??) supply if that were true? Looks like the Vpp generator is on the far right below the multiturn pot. It will be something like TL497. > The 40-pin chip is marked as "S6821P", whatever one of those is. 68xx series paralell I/O chip. > The first 3 of the switches are labelled as '16', the next 3 > as '32' and the last 4 (overlapping by 1 with the previous 3) as '64'. First three on for 2716, next 3 on for 2732 and the last 4 on for 2764. > Card with 8 LEDs and 4 empty 16-pin DIL sockets ("unknown_02.jpg" on the > website): Any ideas? Looks like a digital I/O card. The 6522s are also paralell I/O chips. Leads to the outside world would plug into the DIL sockets. Cheers, Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years

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Cool little modulator

by cb＠mythtech.net

I just aquired (won on ebay, totally forgot I bid on it), a pretty neat little Apple item I never knew existed. Its an RGB -> NTSC modulator for the Apple IIc. It also came with a game/TV switch box, but I don't know if that was originally part of the package, or just a seperate item that was included in the auction. I've never seen this little device before, and had no idea it existed. There doesn't seem to be too much about it online. Has anyone else ever seen or used one of these? I'm just curous really as there isn't much to know or learn about it. It looks like it will only fit the IIc (it has a big lump on it that prevents it from installing on anything else without a cable). And the device is pretty self explanitory in how it works. I was able to figure out from the part numbers and a little searching that I believe this is the NTSC version. There is also a PAL version (any others?). This one appears to be almost brand new. There is zero discoloration and other than slight scratches from screws on the leads to the TV/Game switch box, there is no marring at all. -chris <http://www.mythtech.net>

23 years

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Systems Enhancement Corporation Power Administrator 800

by geoff＠hasker.net

I have come across what seems to be a remote outlet/power sequencer device >from the Systems Enhancement Corporation called the Power Administrator 800. On the rear it has two DB-9 male ports, which I assume can be used to program this device. It also has an Ethernet port and a few RJ-11 ports labeled "IN", "R1," and "R2." Additionally, a DB-15f port with the label "out" exists. I have tried to connect to the device using 9600/8/N/1 over the two serial ports (DB-9) using both a straight and null-modem cable, but my terminal emulator senses nothing. A bank of 8 dip switches exists with the label "config." I contacted the manufacturer, but they claim all of this information is archived and they do not have access to it. Does anyone have any ideas on how to communicate with this device? It powers on and supplies electricity to its six receptacles. Thanks, Geoff

23 years

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Slightly OT

by dwightk.elvey＠amd.com

Hi I find it hard to believe that he'll come up with 1/2 mil to pay for this if he is willing to write poetry for $1. Other than the fact that the seller has a reasonable record, the sale sure seems funny. Most other auctions that sell high value items require the buyers to post a bond. It doesn't sound like this guy could post a parking ticket bond. Still, if this was truly one of the original prototypes, it is in some sense priceless. I don't know if the reason given for removing the transmitter is valid. My undestanding was that the circuit was quite simple and didn't require significant secret circuits. It would be more likely that, like our own NASA, even prototype items were often used in real missions to save cost. Dwight >From: "Frank McConnell" <fmc(a)reanimators.org> > >Ethan Dicks <erd_6502(a)yahoo.com> wrote: >> --- Kevin Handy <kth(a)srv.net> wrote: >> > Ethan Dicks wrote: >> >> > The current bid is $500,700 (way above the buy-it-now price it >> > originally had), so your bid of 25K is far short of the goal. >> >> Holy Sh*t, Batman! It was $25K the last time I looked (4 bids or >> so). >> >> That is beyond absurd. > >The current high bidder, urban-motion, has another auction up with >this in the description: > > I am a 27 year old father with a newborn daughter and bills to > pay. I work one full time and one part time job totalling 40-60 > hours a week and I love to write in my spare time. To help > supplement our income I sell a variety of things on Ebay and look > for creative ways to honestly make a buck. So, I thought that I > could write original poetry for you and also increase your > feedback rating at the same time. By purchasing this auction, I > will write you an original poem and leave you wonderful positive > feedback. > > The poem will be completely 100% original and will be emailed to > you within 24 hours of payment. Feedback will be left as soon as I > receive payment. > > Payment is accepted through paypal only using any major credit > card. > > Thanks for looking and god bless!!!!! > >I am not making this up, you can see it yourself at: > ><http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2932949148> > >-Frank McConnell

23 years

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DEC RL02 anyone need one?

by aek＠spies.com

I already have copies of those, and IIRC, they don't have any specs on the control 'messages' passed between things, a PROM dump, or anything else that is helpful for figuring out how to send commands to the drive. --- Sounds like Tony has figured this out already to build the test box. Would you be willing to publish the info that you've figured out, Tony? ---

23 years

2
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Slightly OT

by fmc＠reanimators.org

Ethan Dicks <erd_6502(a)yahoo.com> wrote: > --- Kevin Handy <kth(a)srv.net> wrote: > > Ethan Dicks wrote: > > > The current bid is $500,700 (way above the buy-it-now price it > > originally had), so your bid of 25K is far short of the goal. > > Holy Sh*t, Batman! It was $25K the last time I looked (4 bids or > so). > > That is beyond absurd. The current high bidder, urban-motion, has another auction up with this in the description: I am a 27 year old father with a newborn daughter and bills to pay. I work one full time and one part time job totalling 40-60 hours a week and I love to write in my spare time. To help supplement our income I sell a variety of things on Ebay and look for creative ways to honestly make a buck. So, I thought that I could write original poetry for you and also increase your feedback rating at the same time. By purchasing this auction, I will write you an original poem and leave you wonderful positive feedback. The poem will be completely 100% original and will be emailed to you within 24 hours of payment. Feedback will be left as soon as I receive payment. Payment is accepted through paypal only using any major credit card. Thanks for looking and god bless!!!!! I am not making this up, you can see it yourself at: <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2932949148> -Frank McConnell

23 years

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AMP connector for DLV-11J

by pete＠dunnington.u-net.com

On Jun 4, 11:43, Ethan Dicks wrote: > According to the specs I read, there's different insertion forces > for different models of pins - spring tension in the pin body itself. So there are -- three different ones in fact, though only on one series, mainly to accomodate large differences in the number of contacts per housing, as you said. Despite using the catalogue from time to time, I'd not appreciated that before. -- Pete Peter Turnbull Network Manager University of York

23 years

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AMP connector for DLV-11J

by pete＠dunnington.u-net.com

On Jun 4, 6:23, Ethan Dicks wrote: > --- Peter Turnbull <pete(a)dunnington.u-net.com> wrote: > > Most of the cables I've seen on these were made up using 2x5-way Berg > > connectors and individual Bergcon crimp pins. > > AFAIK, the connectors for a DLV11-J are 2x7-way... There are only nine > pins (one is missing for keying), but the extra bits help you center > the connector. 2x5 will work, if you don't miss. No, the DEC spec says 2x5. The connectors are AMP connectors; the ones on the DLV11-J itself are 87272-8 and the ones on a BC21B cable (for example) are 87133-5. You can fit a Bergcon 2x7 if you push hard, but it distorts the shroud slightly. All the cables I've ever seen, including original DEC, are 2x5 housings. If the key is in place, you can't really miss. > > You can still get them, but the pins are horrendously expensive in small > > quantities. > > No kidding. One other "problem" is that you need to stock one set of > pins for small connectors (like the DLV11-J) and another set of pins > for large connectors (like an RL8A - 40 pins) because there are different > mating forces. Yes, you can use the "wrong" pins, but they were spec'ed > different for a reason. "Weak" pins in a small connector might not > grab enough to stay in well enough, and "strong" pins in a large connector > might be too difficult to insert. Well, that's not "weak" and "strong" by design, it's for different sizes of square pins, or for round pins. Yes, I agree, don't use the wrong ones! -- Pete Peter Turnbull Network Manager University of York

23 years

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AMP connector for DLV-11J

by pete＠dunnington.u-net.com

On Jun 3, 10:56, John A. Dundas III wrote: > Stuart, > > At 11:53 PM -0700 6/2/03, Jochen Kunz wrote: > >On 2003.06.03 02:16 Stuart Johnson wrote: > > > >> Does anyone have a couple (2) of the AMP 10 pin connectors (with > >> unused pins) used with the DLV-11J 4 port serial I/O boards or > >> know where I could purchase them? > >Aren't this very common 10 pin IDC connectors? At least on my DLV-11J > >clone from Sigma Systems. I used the usual 10 pin crimp connectors for > >ribbon cable to make the cables. > > I have a -J that I'd like to make work and I don't have cables either. I > might get a chance to try Jochen's suggestion this weekend, but not before. > If you find a solution, please post. Most of the cables I've seen on these were made up using 2x5-way Berg connectors and individual Bergcon crimp pins. You can still get them, but the pins are horrendously expensive in small quantities. However, lots of other manufacturers now make similar conectors (two rows, on a 0.1" pitch (2.54mm not 2.5mm)). I've used ones made by Molex (C-Grid III 90142 series, cut off the polarising lug) and Harwin (M20-1071000). Those numbers are from a quick glance at a catalogue so check them before you buy a whole lot! Tyco/Amp make something similar, 87456-6 is a 2x5 way housing with various gold-plated or tinned crimp pins to fit. I get mine from Farnell in the UK, but I'm sure you'd be able to get something from any of the usual US suppliers. BTW, if you make up your own DLV11-J cables, don't forget the shorting link or it won't work reliably (if at all)! -- Pete Peter Turnbull Network Manager University of York

23 years

2
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Teletype

by swtpc6800＠attbi.com

Tony Duell wrote: >That was one of the 'problems in the Teletype' that I was thinking of. I >suspsect the easiest kludge for this these days is to fiddle with the >clock at the computer interface end, and run the whole thing at 91.667 baud > >-tony 91 baud! That is way too slow. I could live with 110 baud, but not 91 baud. My Selectric terminal used a speedy 134.5 baud. Michael Holley www.swtpc.com/mholley

23 years

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Display of first networked personal computer game returning

by mbg＠TheWorld.com

As I said... little time... and even less now that I have a full-time job *AND* getting my clinical training in the OR... Megan

23 years

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Retro printer ribbons up for grabs

by elec37＠york.ac.uk

Hi all, I'm new here - so I hope I'm not breaching any etiquette by posting this. I have a couple of new boxed ribbons for the following printer list... Binder 1550, 8510, 8510A C.Itoh 1550, 8510, 8510A, Prowriter 7500 DEC CLA 45-14602, LA50 HP 85 Leading Edge Prowriter 2-1550 8150AP NCR 6411 NEC PC 8023A/B/C Toshiba P1150, PA7251, PA7252 These are FREE (via an SAE to the UK). If you have any of the above equipment and are interested, please email me directly at elec37(a)york.ac.uk. Cheers now, Ben ~~~ Computer Recycling Project University of York, UK www.comprec.org.uk

23 years

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HP R332 touch screen

by peterbrown10＠hotmail.com

Hi All, I have an old 9000 R332 (rackmount 300 series machine with built in monitor). It looks as though the display has an array of LED's and photo diodes for a touch screen setup. How do I get the touch screen to work? Do I need some additional sofware to do this? Cheers Peter _________________________________________________________________ Sign-up for a FREE BT Broadband connection today! http://www.msn.co.uk/specials/btbroadband

23 years

3
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New find - Pro-Log M824, Z80 analyzer

by r.stek＠snet.net

Long time readers may recall that about once a year I beg other list members to see if they have the manual for the Pro-Log M822 8080 analyzer - that quest continues. But I am now the proud owner of a Pro-Log M824 Z80 analyzer that I snatched up for $15 off ebay. Of course there was no manual. But now - theoretically - I can add blinken-lights to both my Sol-20 and my NorthStar Horizon and single-step to my heart's delight. So...... are there any list members with the manual / schematic for EITHER the M822 OR the M824 ???? Bob Stek Saver of Lost Sols

23 years

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reforming PS caps w/primary-side components

by yakowenk＠yahoo.com

Anybody want to offer advice on reforming filter caps? I'm planning to power up some stuff that hasn't seen voltage in a long time. My plan is to put several low-wattage light-bulbs in series with the thing, to limit the amount of current it will get, and hopefully allow those old caps to reform instead of, say, exploding in my face. It would be better to put the light bulbs (or whatever kind of resistor) in series with the caps themselves on the secondary side of the transformer, right? But if I start digging into the thing's innards like that, there is a real risk that I'll damage it more than an exploding cap would. (In one item, there is a picture tube nearby, and I'm sometimes clumsy...) Now the questions: Could putting the light-bulbs (or whatever) in series on the primary side of the transformer actually produce the desired effect? IIRC, a step-down transformer divides the voltage but multiplies the current. So I'd have to limit the current on the primary side that much more to keep the secondary current down, right? Also, what kinds of things could be damaged by getting less voltage than they were designed for? I could imagine hard disks spinning too little to lift the heads from the surface, for instance. (This is moot, because there are no hard disks in any of the equipment I'm looking at.) How about CRT's? Could too little deflection make the beam hit something it shouldn't? Anything else? Thanks, Bill.

23 years

5
4
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list squirrelyness

by jwest＠classiccmp.org

In an effort to track something down, both cctech and cctalk have temporarily been put into "all posts must be approved". The net effect is that traffic on the list will be more "bursty" for a while, as I periodically check posts and manually approve them all. This change is temporarily, hopefully no more than a few hours. Everything should be back to automatic approval by late tonight. Sorry for the inconvenience! (The approval change for the next few hours, only applies to posts that normally would NOT need to be approved). Regards, Jay West

23 years

2
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HP64000 System

by luc＠e2t.be

Hi Folks, I have to do some reverse-engineering work on an old Z80 based system. Does anyone know where to find A 64650A GP Preprocessor pod and a 64853A Z80 personality module gr. Luc

23 years

2
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ASR33 resistors

by charlesmorris＠direcway.com

Go to David Gesswein's site http://www.pdp8.net/query_docs/query_all.html and look under "Teletype", download the "Print Sets which have full schematics of your 33, and all will be revealed! As you have discovered, parts of the TTY power supply are on all the time even if the line/local switch is off... Mine runs quite hot too, and over the years has discolored the board beneath it to a well-done dark brown. -Charles On Tue, 03 Jun 2003 12:00:01 -0500, you wrote: >This res. gets hot even when switched off, but just in the socket. > ____________ > | | > | (14 O ) | <- large resistor > | | > | (220ko)| <\ > | (300ko)| | > | | |- not sure > | etc (vr) | | > | | </ > | _ | > |||||| ||||||

23 years

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HELP!!! I am looking for ADQ32-SF

by vharris＠usce.org

I am searching for a reasonably priced DEC ADQ32-SF. I have only been able to find one but the company that has it wants way too much for it. If you have any resources for this I would greatly appreciate any links, phone numbers, fax numbers or anything else that you feel may help in my search. Thank you for your time Vince Harris Account Manager US Computer Exchange Inc. 386 East Maple Road Troy, MI 48083 248-583-9000 Phone 248-583-9009 Fax vharris(a)usce.org

23 years

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Hi!/ Sharing the technology/ LK401/ Thanks!

by mk＠mkd-gmbh.de

Justin, I came about your mail on an archive-server. Did you resolve your problem with the keyboard ? I think you do have a LK401, but not a Digital/Compaq one but one from Tektronix. Today I got a request from a customer looking for that Tektronics keyboard. But I only have DEC Keyboards. DEC LK401 has alway a 4pin RJ11 connector. I never came across that Tektronics keyboard before and your Mail was the only one stating the Tektronics pratnumber, which is different fron the DEC one. BTW, the serial# is different, too. The DEC ser# is longer. The TEK ser# has only 5 digits while DEC ser# have 10 digits. Sincerely, Michael

23 years

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Weird cable

by Michael.Bauza＠rivhs.com

I'm interested in obtaining one of those "Weird" cables you have. Can you please either contact me at 757-534-7108 or give me your number so that we can discuss it further to make sure we are talking about the same weird cable. Thanks, Michael Bauza CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

23 years

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(no subject)

by davemaho＠rcn.com

Hello fellow PDP-8 enthusiasts: Due to financial considerations, I am forced to sell my PDP-8 collection. I will be putting individual items up on eBay over the next few weeks. My current collection includes a straight-8 in the original DEC rack cabinet, an 8/I, two 8/e's (one 'basic' and one a fully loaded 40-slot box), a TU-56 dual tape drive, high speed paper tape punch and reader, 80-column drum-style Dataproducts line printer with spare ribbons, documentation, boards, and paper; RX-01 and RX-02 disk drives, two PDP-8/a's, and two VT-278's on wheeled pedestals, extra VT-100's and VT-52's, and more that I have probably forgotten about. Software, maindecs, documentation, etc. will also be offered. I plan to hold on the straight-8 until the last possible moment, maybe forever, and I am negotiating the sale of the 8/I processor, its spare board set, and documentation, to a private party. I even have a couple of OLD 11's (an 11/05 is one of them). I have had this collection for close to 20 years. All my kids learned to use computers on it, and it has been lots of fun restoring them, writing software, and building custom hardware for them. I'll miss them, but I do want to see them go to good homes! If there is anything you want, let me know and I will put it up first. I have a LOT of stuff related to these machines, so ask, as I may have what you are looking for! Best Regards, Dave Mahoney

23 years

1
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