test-drb April 2019

test-drb@ccmp.vtda.org

134 participants
129 discussions

Telex 20 Meg 10 platter very heavy monster drive needed drop line off list..r

by couryhouse＠aol.com

Thanks? Al? ?yes, that? is? the? one.? and? as? I? recall? ?ISS? was a? ?offshoot? on? ?univac?In a message dated 4/22/2019 11:21:50 AM US Mountain Standard Time, cctalk at classiccmp.org writes: On 4/22/19 11:05 AM, ED SHARPE wrote: > Al,? the? drive? ?you mention at? its? largest? ?was? 7.5 meg? and? 6? platters... not? ? the? ?one Telex bought their drives from ISS. You're looking for a ISS 714 (ca. 1970) 2314 compat. https://ia800608.us.archive.org/15/items/TNM_Information_Storage_Systems_-_… aek at bitsavers.org;cctalk

6 years

IBM 6360 - interface help?

by anders.k.nelson＠gmail.com

CCing the list back in, and still looking for someone in the NY area with a Displaywriter (with disk drive) that could help me take some logic traces - ==== Quoth Nigel: just in case you missed it your reply only went to me. On Mon, Apr 22, 2019 at 1:45 PM Anders Nelson <anders.k.nelson at gmail.com> wrote: > Nigel - Wow, very cool! I assume you dumped a ROM feeding an 8048 inside the 6360 drive housing? Someone dumped the original ROM, it is in the github repo too. > FWIW, I also found a Displaywriter withOUT keyboard or disk drive: https://www.ebay.com/itm/Vintage-1984-IBM-6580-Display-Station-Word-Process… If you want a 6580 keyboard you either have to get lucky or outbid the mech-heads...be prepared to bid a lot though. Estate sales are the thing to haunt to get one intact. ==== Thanks Nigel, more below! -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Sun, Apr 21, 2019 at 11:45 PM Anders Nelson <anders.k.nelson at gmail.com> wrote: > Nigel - Wow, very cool! I assume you dumped a ROM feeding an 8048 inside > the 6360 drive housing? > > I agree a logic dump would be invaluable so if I can get in front of a DW > I'll capture and share all I find on my blog (and wherever else). > > Al - I found a USB conversion kit for this keyboard and it's all > open-source, so by reversing the key-matrix decode step in the kit's MCU > firmware we might be able to feed the original keyboard controller with > keystrokes from, say, another USB keyboard. A very roundabout hack but it > seems these keyboards are rare. Here are the conversion kit sources: > > Forum: https://geekhack.org/index.php?topic=58138.0 > Direct: http://downloads.cornall.co/ibm-capsense-usb/ > > Any chance someone knows the original keyboard controller pinout and > protocol? > > FWIW, I also found a Displaywriter withOUT keyboard or disk drive: > https://www.ebay.com/itm/Vintage-1984-IBM-6580-Display-Station-Word-Process… > > =] > -- > Anders Nelson > > +1 (517) 775-6129 > > www.erogear.com > > > On Sun, Apr 21, 2019 at 11:12 PM Nigel Williams < > nw at retrocomputingtasmania.com> wrote: > >> Hi Anders, >> >> good luck with your exploration of the 6360. >> >> Back in Jan-2017, I assisted Sergey who did the MAME implementation of >> the Displaywriter, as Al Kossow mentioned in an earlier email the code >> is here: >> >> >> https://github.com/mamedev/mame/blob/97b67170277437131adf6ed4d60139c172529e… >> >> During this process I started disassembling the 6360, attached is a >> file that I developed with comments. It is incomplete but might help >> understand the protocol. >> >> One thing to keep in mind is that the Displaywriter is made up of >> (almost) standalone subsystems, so the floppy drive unit has its own >> 8048 microprocessor and accepts high-level commands from the system >> unit. >> >> Sergey and I were chatting about returning to work on the MAME >> Displaywriter implementation at some point. We really need a >> logic-analyser dump of the startup since it is very convoluted (it has >> a large section of code attempting to check that all the hardware is >> working so it is doing all manner of tricks to check things). >> >> cheers, >> nigel. >> www.retroComputingTasmania.com >> >> >> On Mon, Apr 1, 2019 at 6:42 AM Anders Nelson via cctalk >> <cctalk at classiccmp.org> wrote: >> > Can anyone help with the protocol? >> >

6 years

Telex 274-61C Establishment Controller

by aek＠bitsavers.org

Picked one up, it is the last generation of 3274-style controllers before they went to 3174-style ca. 1988. I'd like to find manuals and the IPL diskette (1.2mb). The unit actually had an IPL floppy, but it disintegrated trying to recover it (there is signs of rust inside the hardware so the whole thing got wet). I took some pics of the boards (each one has a 68000 on it, only one board has eproms) and dumped the firmware which is up now under telex on bitsavers. Curiously, the floppy appears to be in FILES-11 format..

6 years

Ultrix 3.0 VAX

by dennis.grevenstein＠gmail.com

Hi, I am looking for images of Ultrix 3.0 installation tapes for VAX. I know that there are some on bitsavers: http://bitsavers.informatik.uni-stuttgart.de/bits/DEC/vax/ultrix/3.0/ However, I cannot boot them in simh. There are also 4.0 images that boot fine. I then installed 4.0 and looked at the 3.0 tape images. I could extract the base 3.0 filesets, but the standalone parts that allow booting a system appear to be missing. Thus, I could not even setup a remote installation environment. Can anybody help me out with bootable Ultrix 3 tape images? thanks, Dennis

6 years

TeleVideo MmmOST replacement

by pat＠vax11.net

I've finally have cleaned up sources and wrote up some documentation for my TeleVideo MmmOST replacement. Let me know if you have interest in this, need help, or could help me source a working TS-806 to compare this against. https://worldofvax.blogspot.com/2019/04/televideo-systems-part-vii-almmmost… Pat

6 years

Telex 20 Meg 10 platter very heavy monster drive needed drop line off list..r

by couryhouse＠aol.com

Telex 20 Meg 10 platter ?very heavy monster drive needed drop line off list thanks Ed# ---hope this works and see ds from phone ok... thx try it? again!In a message dated 4/21/2019 3:58:15 PM US Mountain Standard Time, cctalk at classiccmp.org writes: Telex 20 Meg 10 platter ?very heavy monster drive needed drop line off list thanks Ed# ---hope this works and see ds from phone ok... thx

6 years

CDC BK6XX BK7XX maintenance manual Vol2

by abacos_98＠yahoo.com

I have a CDC BK6XX BK7XX Maintenance manual Vol 2 available.If anyone has an immediate need I will send it free but please passit on to Bitsavers after scanning as I did not see this one listed. Brian.

6 years

Telex 20 Meg 10 platter very heavy monster drive needed drop line off list..r

by couryhouse＠aol.com

2311? was? not? ?20? megs..... from? what? I? saw... what is the? ?#? ?for the? 20 meg? telex? drive?thanks? ed# In a message dated 4/22/2019 10:01:04 AM US Mountain Standard Time, cctalk at classiccmp.org writes: On 4/22/19 9:49 AM, ED (knuttjobb) SHARPE via cctalk wrote: >? Telex 20 Meg 10 platter ?very heavy monster drive needed drop line off list thanks Presumably he is looking for a Telex 2311-compatible drive, but who knows wtf Ed says.

6 years

Still looking for a RK611

by abacos_98＠yahoo.com

Hello, ?I have just about all the pieces I need to start work on getting at least one of my RK07's running. I found cables, terminators and cab kit but still need to find an RK611. I have just a few things I could trade. A very nice PDP11 labeled header panel for a DEC rack.No broken ears and not all scratched up. Brand new DECstation 5000/260 processor. Some non-DEC early PC boards. I would also pay a reasonable price for one. Thanks,Brian.

6 years

IBM 6360 - interface help?

by anders.k.nelson＠gmail.com

Hey all, I'm writing a blog post about this IBM 6360 disk controller I want to build: https://www.andersknelson.com/blog/?p=601 I've read through the service manuals and other docs on Bitsavers but I can't seem to find a deeper explanation on the protocol that runs over the DB-37 cable. I suppose I could bypass the controller inside the drive cabinet and directly control the drives but I bet it'll be easier/better to use as much of the electronics as possible. Can anyone help with the protocol? Thanks! -- Anders Nelson +1 (517) 775-6129 www.erogear.com

6 years

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test-drb April 2019