test-drb

test-drb@ccmp.vtda.org

101090 discussions

by wh.sudbrink＠verizon.net

In the form of an estate sale. The first in a long while where I found anything interesting. In addition to buying a large box of 7400 and 4000 series chips, all with 1970's date codes, I got two vintage keyboards: http://wsudbrink.dyndns.org:8080/images/kb_pics/20181215_162104.jpg http://wsudbrink.dyndns.org:8080/images/kb_pics/20181215_162139.jpg The estate sale employees have no idea where the associated systems (if any) are. They did not see them during the sale preparation and have not sold them. I also got a manual and set of 8 inch floppies for "Unicorn Systems Software Tools For CP/M". Twenty floppies, all with factory labels, various libraries, utilities and documentation files. I have not made a careful study of them yet (I just got home with them an hour ago). Bill S. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 8 months

Looking for a home for most issues of BYTE Magazine

by john＠ziaspace.com

Thank you all for all of the interest. The first person who wrote me isn't far away at all and will give it a good home, so I'm going to go with him. While I'm fetching those, I'm going to make a list of other older hardware for which I'd like to find homes, so I'll post about that, and possibly about other magazines, in a week or so. Thanks! John

7 years, 8 months

Data Electronics Incorporated (DEI) CMTD-300S2 tape drive manual

by microtechdart＠gmail.com

For view or download: http://bit.ly/2RZK28Q I came across this, and noticed that this early of a DEI model was not yet archived at http://bitsavers.org/pdf/dei I'm not sure that it is scanned to the requirements of bitsavers, but I don't have access to the original, so I offer this if it is usable or of interest to anyone here. I'll probably also post it on one of my sites, at http://QICreader.com I also just acquired this DEI 301034-2 QIC Tape Drive, and have begun to reverse-engineer it. https://ebay.to/2EjyxFn Best always, -- Thanks, AJ

7 years, 8 months

Looking for a home for most issues of BYTE Magazine

by john＠ziaspace.com

Hi, all, I have a collection of most of BYTE Magazine from the beginning through about 1985. Instead of selling it on eBay, I'd rather find a home for it where people can enjoy it. I also have a small collection of other computer magazines from the late 1970s and early 1980s which I'd like to include. Does anyone know of any person or organization within a reasonable distance from southern California who might take these magazines and preserve them, instead of just selling them on eBay? Thanks! John -- I don't know which scares me more - that people adhere to the idea of an omnipotent being powerful enough to create the universe, but whose supposedly most cherished creation is a race modeled after himself which can't stop hurting and killing each other, or the idea that those same people cannot or will not consider the possibility that the universe is random and unfeeling, and it's up to us to create order and beauty out of chaos and entropy.

7 years, 8 months

Core memory emulator using non volatile ram.

by elson＠pico-systems.com

On 12/15/2018 03:22 AM, Rod G8DGR via cctalk wrote: > I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. > Can anybody suggest a chip that will do this? > > Any CMOS SRAM chips can do this, with a backup battery. I used a IS62WV6416DBLL in a project a while ago. I did not use in in battery-backed mode, but it could do that. You do have to make sure that any outputs from the memory are driven to the high-impedance state during power-off to prevent draining the battery. Jon

7 years, 8 months

Core memory emulator using non volatile ram.

by bobalan＠sbcglobal.net

On 12/15/2018 1:22 AM, Rod G8DGR via cctalk wrote: > I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. > Can anybody suggest a chip that will do this? > > Rod Smallwood > > > Sent from Mail for Windows 10 > > I used Everspin MRAM chips for my PDP-8e memory cards. It's just like SRAM, fast at 35 ns, and unlimited read/write endurance. Only drawback is it's 3.3 volts only. I just used level converters. It's a magnetoresistive memory, feels just like core. $12 for a 64K x 16 chip at Digikey. Bob -- Vintage computers and electronics www.dvq.com www.tekmuseum.com www.decmuseum.org

7 years, 8 months

Core memory emulator using non volatile ram.

by pbirkel＠gmail.com

Perhaps Cypress FM1808 (32Kx8). Obsolete, but available on eBay. SOP for a bit of extra challenge! -----Original Message----- From: cctech [mailto:cctech-bounces at classiccmp.org] On Behalf Of Rod G8DGR via cctech Sent: Saturday, December 15, 2018 4:22 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Core memory emulator using non volatile ram. I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. Can anybody suggest a chip that will do this? Rod Smallwood Sent from Mail for Windows 10

7 years, 8 months

Core memory emulator using non volatile ram.

by rodsmallwood52＠btinternet.com

I have an idea to produce an MM-8 clone using RAM that acts like core when turned off. Can anybody suggest a chip that will do this? Rod Smallwood Sent from Mail for Windows 10

7 years, 8 months

Documation card readers for sale

by ball.of.john＠gmail.com

About six months ago I struck a deal with a place down in California for four Documation M1000's that I've been able to tell so far they all work but I really don't have space for more than one. I've been trying to sell them at a loss for months now over on the Vintage Computer Forums and Nekochan (if you got here you'll find pictures) but no bites. I swear there were people out there that were looking. Where did you folks go? Might anyone here be interested? I absolutely refuse to put them on the curb. -John

7 years, 8 months

Latest batch of goodies from Sellam's VWoCW plus 10% off!

by sellam.ismail＠gmail.com

Merry Christmas and Happy Hanukkah, folks! And holiday greetings to the rest of us celebrating Festivus! It's time to treat yourself or your favorite nerd for the holidays, so as my gift to you I'm offering 10% off anything with a listing date prior to 2018. Check the "Date Added" column in the warehouse item listings--anything listed in 2016-2017 is 10% off!. If you're a previous buyer (I know who you are) the 10% off applies to anything! Here is the latest batch of listings: Xerox 6085 "Daybreak" CPU Xerox 6085 IOP Input-Output Processor (C4) board Xerox ViewPoint 2.0 Software Installation Xerox ViewPoint 2.0 Documentation Set (Volumes 1-6) Xerox Desktop Publishing Series: Ventura Publisher Edition manuals Xerox Telecopier 7032/7033 Facsimile Terminal User Handbook Connect Computer Z183-2 WonUnder II Western Digital VGA Plus C Future Domain Corp TMC-830 Iomega PC2B SCSI Controller Iomega PC2B50F SCSI Controller Orchid ProDesigner VGA Silicon Graphics O2 Workstation IBM Type 7208-001 External 2.3GB 8mm Tape Drive BM BM-401 486 CPU Breakout Adaptor Compaq DeskPro DSM Monitor HP 2641A/2645A/2645S Display Station Reference Manual HP 2647A Graphics Terminal Manual Set HP 13290A/2649A Data Terminal Reference Manual Advanced Gravis Ultra Sound (boxed) Universal Data Systems 212 LP Modem (boxed) You can get to the Virtual Warehouse of Computing Wonders main index to find links to these and many others items here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… As always, please contact me directly by e-mail via <sellam.ismail at gmail.com> to make an order or an offer. Thanks! Sellam

7 years, 8 months

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