test-drb

test-drb@ccmp.vtda.org

101090 discussions

by grant＠millhouseindustries.com

Working to restore a series 30 , looking for any spare boards ,cpu ,bic boards from a series 30/33Just putting it out there ,long shot i knowCheers,Grant?Sent from my Galaxy

5 years, 3 months

DEC Pro hard drive formatter

by paulkoning＠comcast.net

I'm wondering how to do hard drive formatting, which is likely to be needed when working with emulated disks in David Gesswein's MFM emulator. As far as I can tell, RT-11 can do this. At least I have a source code printout for such a formatter. But while I can find a hard drive image of RT V5 for Pro, I haven't found any floppy-bootable images. And I think it's a bit tricky to create one. I knew, long ago for V2... Any suggestions? Any alternative sources for a formatter? I guess I really should consider typing in the core of that formatter and adding it to RSTS. paul

5 years, 3 months

Books I offered

by van.snyder＠sbcglobal.net

The books I offered last week have all been spoken for. Van Snyder van.snyder at sbcglobal.net

5 years, 3 months

ICL PERQ 2 T2 Micropolis 1303 spinning down.

by mattislind＠gmail.com

I have a nice ICL PERQ 2 T2 that I am going to start working with now. First thing was to try to image the hard drive. It is a Micropolis 1303. It spins up but when it reaches what I think the correct speed it immediately spins down. Usually I think there would be a click and then the heads would recalibrate. But there is no click and no head movement. I really would like to make an image of the drive. What are your thoughts? Are the heads sticking? Some kind of solenoid that is not releasing the heads? Not properly up to speed? (but it sounds like the speed is right) /Mattis

5 years, 3 months

Compuserve

by tomas＠basun.net

Hi all, Does anybody know if the old Compuserve discussion forums are available anywhere now? I'm specifically interested in the ones about HP Palmtops and cc:Mail. /Tomas

5 years, 3 months

cc:Mail error code

by tomas＠basun.net

Hi all, Does anybody here know what cc:Mail error code 3075 means? (Haha, I thought not) /Tomas

5 years, 3 months

interesting manual find - usermanual.wiki

by rdawson16＠hotmail.com

Ran across this, give it a try. There are tons of old (and new) manuals in there. Randy

5 years, 3 months

ISO Technico info, pics, doc scans, etc.

by jbdigriz＠dragonsweb.org

Models SS-16, TEC-9900-SS, TR-9000-SS aka Technico/Rosse TR-9000-SS "Super Star", or any other. I think a couple of list members have indicated here or elsewhere in the past that they had SS-16's at least. Thanks for any help, jbdigriz

5 years, 3 months

Probably the wrong list to ask

by van.snyder＠sbcglobal.net

This is probably the wrong list to ask, but maybe somebody could forward it to a more appropriate list. I have several of my father's books on electrical engineering. If anybody wants any of them, let me know. Van Snyder van.snyder at sbcglobal.net --------------------------------------------------------------------- ---- Reference Data for Radio Engineers Federal Telephone and Radio Corporation, 1946 Matrix Analysis of Electric Networks, Le Corbulier, 1946 Radiotron Designers Handbook, Smith, 1941 Digital Computer and Control Engineering, Robert S. Ledley, 1960 Control System Synthesis, John G. Truxal, 1955 Communication Engineering, Everitt, 1937 Dyadic Circuit Analysis, Sah, 1939 Electrical Engineers' Handbook, Third Edition, Communications Electronics, Pender & McIlwain, 1936 Electrical Engineers' Handbook, Third Edition, Electric Power, Pender & Del Mar, 1936 Theory and Application of Microwaves, Bronwell & Beam, 1947 Electrical Catechism, C. S. Dearborn (signed) 1902 Electric Circuits, E.E. Staff, MIT, 1942 Transients in Linear Systems, Vol. 1, Lumped Constant Systems Gardner & Barnes, 1942 Tensor Analysis of Networks, Gabriel Kron, 1939 Analog Methods, Karplus & Soroka, 1959 Electrical Engineering Leaflets, Houston and Kennelley, 1898 Silent Sentinels: Protective Relays for AC & DC Systems Westinghouse Electic, undated, paperback

5 years, 3 months

cc:Mail 2/3/4/5

by tomas＠basun.net

Hello everybody, Does anybody have any early versions of cc:Mail that they can share? I have v. 6 (1996) and 8 (1997). Am looking for versions from 1994/5. /Tomas

5 years, 3 months

Nine track file marks, Burroughs

by drb＠msu.edu

Folks, I've now seen two Burroughs tapes where some of the expected file marks between labels and file data were apparently missing. I think a reasonable description of these is "Burroughs/Unisys B6x00 'Library/Maintenance' tapes with ANSI-69 labels" Reading drive is a Cipher GCR Cachetape with SCSI interface The one I read yesterday read in streaming mode and reported no read errors. I tried re-reading it today, and it read in start-stop mode, but still didn't have the missing file marks. (It also encountered a few errors, and eventually ended up sticking to the head, this time. Guess that bake cycle was a one-shot, which isn't a surprise.) This tape is a "Burroughs Series 7 / 100% Tested / 3200 FCI" 1200 foot reel written at 1600 BPI in 1986. Here's the beginning of the tape: file 1 record 1 size 80 00000000: e5 d6 d3 f1 f0 f3 f6 f1 f3 f0 40 d7 d9 d6 c7 d9 VOL1036130 PROGR 00000010: c1 d4 40 40 40 40 40 40 40 40 40 40 f6 f5 f3 f0 AM 6530 00000020: f3 f0 f5 f0 f3 40 40 40 40 40 40 40 40 40 40 40 30503 00000030: 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 00000040: 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 f1 1 file 1 record 2 size 80 00000000: c8 c4 d9 f1 c6 c9 d3 c5 f0 f0 f0 40 40 40 40 40 HDR1FILE000 00000010: 40 40 40 40 40 d7 d9 d6 c7 d9 c1 f0 f0 f0 f1 f0 PROGRA00010 00000020: f0 f0 f1 f0 f0 f0 f1 f0 f0 40 f8 f6 f2 f0 f2 40 001000100 86202 00000030: f8 f6 f2 f3 f2 40 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 86232 0000000000 00000040: f0 f0 f0 40 c1 f9 40 40 40 40 40 40 40 40 40 40 000 A9 file 1 record 3 size 80 00000000: c8 c4 d9 f2 e4 f0 f1 f0 f2 f4 f0 f1 f0 f2 f4 f3 HDR2U01024010243 00000010: f0 f1 f0 f1 f0 f0 f0 f0 f3 f0 f0 f0 f0 f0 f0 f0 0101000030000000 00000020: f0 f0 f0 f0 f0 f6 f4 f0 f0 f1 f3 40 f0 f0 f6 f4 00000640013 0064 00000030: 40 40 f0 f6 40 40 40 40 40 40 40 40 40 40 40 40 06 00000040: 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 file 1 record 4 size 2070 00000000: 40 00 00 00 00 01 00 00 00 00 00 00 12 03 03 04 ............... ...etc. Is oddness with file marks something others have seen with Burroughs tapes? Something the Cipher drive is known for? Moon phase? Incorrect fifth digit of my SSN? I've not had this missing file mark problem with tapes written on other vendors systems - Prime, IBM, DEC. Cluebats appreciated. De

5 years, 3 months

PDP-11/34 /04 power knob anyone?

by fritzm＠fritzm.org

Hi folks, I?m working on an 11/34 at the moment, with the programmer?s console, and it is missing its front panel power control knob. I think it is the same one used on the 11/04? Anybody have a spare in their parts stock that they?d be willing to part with? (I?m also missing the plastic half-panel for the front, but I do see those go by on eBay from time to time.) cheers, ?FritzM.

5 years, 3 months

Got DSM-11 running, any manuals online?

by dick.curtis＠ymail.com

ftp://ftp.intersystems.com/pub/msm/docs/msm43/users.pdf is another source for a manual.? It's the version which Micronetics sold, of which I heard "Micronetics shamelessly? copied DSM-11?practically line for line to the PC."??So the manual is probably close enough to work. HTH,Dick

5 years, 3 months

cc:Mail Router for NT

by tomas＠basun.net

Hi all, I'm using a HP 200LX to connect to a cc:Mail installation, with a null modem cable. It has worked better before, but now I don't seem to be able to connect at all. This is the output from the router, when trying to connect from the 200LX: | C:\CCMAIL\Router>C:\CCMAIL\Router\NTROUTER.EXE C:\CCDATA MODEM/PBX COM1 DIAGNOSTICS/F LOG/C:\CCMAIL\Router\ROUTER.LOG | cc:Mail NT ROUTER Version 6.10.00.4 | Copyright (c) 1986, 1997 by cc:Mail, Inc. [...] | Press Esc to terminate cc:Mail ROUTER program. | Waiting to receive messages... | 23/12/20 13:53:33 Answering call... 2 8 3a 74 68 8 2a 55 22 52 23 | 7d 18 80 from ~????`???f???????? ?`. Data connection not requested. | 23/12/20 13:53:49 Ending connection. | Waiting to receive messages... | 23/12/20 13:53:55 Answering call... 2 8 3a 74 68 8 2a 55 22 52 23 | 7d 18 Data connection lost. | 23/12/20 13:54:36 Ending connection. | Waiting to receive messages... The log files are empty. There are no other error messages anywhere that I can see. Anybody recognises anything? Any ideas about things I can try? Here is the modem file: | [attributes] | MODELS=Null | NULL MODEM=1 | [commands] And another thing is that I only seem to be able to get a response at 1200 baud (the router default) by not specifying a speed when starting the router. If I add the speed to the command line (the first line above), any speed, (and the corresponding setting on the Palmtop) then there is no connection at all. It has worked better earlier. I managed to connect at 9600, but that was a different PC. I am not aware of having changed anything relevant on either PC or Palmtop. Any help appreciated. /Tomas

5 years, 3 months

Rod Coleman's personal history of founding, building & running SAGE

by lproven＠gmail.com

This may be old news -- it was new to me, though. https://suddendisruption.blogspot.com/search/label/Booting%20Sage%20Computer I'm not really familiar with SAGE machines. They were not as well-known in the UK, I think, being upmarket from the Apple ][ and IBM PC, both of which were eye-wateringly expensive by UK standards of the time. Also, they were terminal-based things and even back then I was interested in boxes with graphics. :-) -- 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, 3 months

Dilog SQ703 Manual anybody?

by nw.johnson＠ieee.org

I'd like to get a Dilog SQ703 I have to work on my microvax, does anybody know where I can get a copy of the manual? cheers, Nigel -- Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591 nw.johnson at ieee.org

5 years, 3 months

M688 Flip Chip Unibus Power Fail Driver Modules

by jnc＠mercury.lcs.mit.edu

> From: Steven Malikoff > Would that be part of this system at a Japanese computer museum? ... > the 11/05 has 'Unichannel15' on it Yes, the 3 bays in the center are a PDP-15. (The indicator panel at the top of the center bay is the one for the PDP-15 CPU; you can see it here: http://ana-3.lcs.mit.edu/~jnc/tech/DECIndicatorPanels.html at the top of the 'PDP-15' section.) The Unichannel 15: https://gunkies.org/wiki/UNICHANNEL_15_System is undoubtly there to drive the RK05; I don't think there's a native PDP-15 controller for that. > There is an 11/15 ??? Is that a typo for 'PDP-15'? The -11/15 looks just like an -11/20 https://www.ricomputermuseum.org/collections-gallery/equipment/dec-pdp-1115 except it only has 16 address switches, not 18 as on the /20. (The front panel shown there has an OEM-specific re-paint; I couldn't quickly turn up an image of a DEC /15 front panel.) Noel

5 years, 3 months

Bendix G-15 and Control Data 160 console on ebay

by p.gebhardt＠ymail.com

If anybody of you has been looking for a Bendix System or a CDC 160 console and has deep pockets: That's your opportunity ;) ebay numbers 203239156838 and 203239181341 Not affiliated with the seller. Just saw the listings - can't believe that such cool systems are still stored in some warehouses in the U.S. for business purposes ... Cheers, Pierre ----------------------------------------------------------------------------- http://www.digitalheritage.de

5 years, 3 months

M688 Flip Chip Unibus Power Fail Driver Modules

by jnc＠mercury.lcs.mit.edu

> The "Spare Module Handbook" lists: > ... > MX11-B I apparently can't read. Should be "MX15-B": https://gunkies.org/wiki/MX15-B_Memory_Multiplexer Noel

5 years, 3 months

test please ignore

by jwest＠classiccmp.org

Test, please ignore.

5 years, 3 months

M688 Flip Chip Unibus Power Fail Driver Modules

by jnc＠mercury.lcs.mit.edu

> From: Ethan Dicks > what are these found in? The "Spare Module Handbook" lists: RH11-AB TM11, TMA11 MX11-B Does _anyone_ actually have an MX11? Any documentation would also be welcome; all I've been able to find out about it is a listing for the addresses of control registers. Noel

5 years, 3 months

M688 Flip Chip Unibus Power Fail Driver Modules

by jnc＠mercury.lcs.mit.edu

Anyone need/want a couple of these? Someone has a group of 5 for sale on eBait (#184317666245), and I want a couple, but not _5_. The seller didn't respond to a request to split up the lot, so I'd like to go in with a couple of other people on the. Any takers? Noel

5 years, 3 months

DEDICATED HOBBYIST ALERT: IBM AS/400 9406-F2 for cheap sale in Germany

by poc＠pocnet.net

Hello, to fellow readers in Germany and surrounding areas: HUGE 9406-F2, 300?, pickup in Heidelberg, Germany. Might be a Multiprocessor-Machine. https://cgi.ebay.de/174577267021 I?m not related to the seller. Have seen this by chance. I requested more photos to see what machine it is. Would be very sad if it will be scrapped. I can forward the additional photos as email on request. :wq! PoC

5 years, 3 months

KL11 asynchronous serial line interface on eBay

by jnc＠mercury.lcs.mit.edu

Here: https://www.ebay.com/itm/284137678274 and: https://gunkies.org/wiki/KL11_asynchronous_serial_line_interface if you want to know what it is. The lot includes an M105 Address Selector and an M782 Interrupt Control (which you'd need to actually use it); the price for the group is quite reasonable. Noel

5 years, 3 months

Dec RQDX: What kind of chips on it?

by cz＠alembic.crystel.com

Can someone check to see if a RQDX2 used the Western Digital chips to interface to MFM drives? Reason I'm asking is the MFM emulator can identify an RQDX3, and also a Pro/350 controller but this particular RD52 I have (which was verified by me to run Digital Mumps) is reading as: root at beaglebone:~/mfm# ./mfm_read -a Board revision C detected Found drive at select 3 Returning to track 0 Drive RPM 3525.4 Matches count 36 for controller WD_1006 Header CRC: Polynomial 0x1021 length 16 initial value 0xffff Sector length 512 Data CRC: Polynomial 0x1021 length 16 initial value 0xffff Interleave mismatch previous entry 0, 9 was 1 now 0 Selected head 8 found 0, last good head found 7 Read errors trying to determine sector numbering, results may be in error Number of heads 8 number of sectors 18 first sector 0 Unable to determine interleave. Interleave value is not required Drive supports buffered seeks (ST412) Disk has recalibrated to track 0 Stopping end of disk search due to recalibration Number of cylinders 512, 37.7 MB Thanks! CZ

5 years, 3 months

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