test-drb

test-drb@ccmp.vtda.org

101090 discussions

by shumaker＠att.net

2 Osborn 1 systems available in the Corvallis (actually Albany) OR area.. One gets a screen prompt, one does not (NFI) seller wants $20 each but suspect he's flexible. Needs them gone so he can move. there is apparently SOME software/docs to go with. anyone interested, contact me off list for info steve

16 years, 5 months

Compupro 8/16 system avail. in San Francisco Bay area

by dave09＠dunfield.com

Apparently headed for recycling if no takers are found (so act soon). Contact me off-list for more info. Dave -- dave09 (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

16 years, 5 months

PET, Sinclair, Unitron (AppleII clone), TI-99/4As avail near Toronto.

by dave09＠dunfield.com

1 Commodore 8032 computer 1 Commodore 8250M dual floppy drive 1 timex/sinclair M330 computer 1 Unitron Apple clone with single floppy drive,Applesoft tutorial & Apple lle owners manual 2 Texas Instr. TI-94/4A computers with two power supplies, one synthesizer unit with software & manuals. Located in Richmond Hill, north of Toronto (Ontario, Canada). Apparently headed for recycling if no takers are found (so act soon). Contact me off-list for more information. Dave -- dave09 (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

16 years, 5 months

apple documentary and huge apple collection

by brianlanning＠gmail.com

We've been watching netflix through the xbox 360 lately. They have a documentary about apple that started out good, but sort of went down hill I think. (it seemed a few years old, so you may have already seen it) But toward the end, they showed a guy with a huge apple collection. He makes all of us look like amateurs. He doesn't have a storage facility. He has a 6000sqft building. It looks like a small office building. He also had machines in his basement, attic, and in a storage shed that looks more like a 2-car detached garage. In the video I saw maybe 40 or 50 apple 2es. I like stuff like this. It give me something to point my wife at and say, "see, at least i'm not like that guy!" lol http://www.netflix.com/Movie/Welcome_to_Macintosh/70112046?strackid=7c44782… brian

16 years, 5 months

GRI

by wdonzelli＠gmail.com

Speaking of classic test equipment... The circa-1970 GRI-99 minicomputer from GRI. What a bomb. I have to wonder how many sold, and if any are left. Was GRI an attempt by General Radio to get into the minicomputer fray? -- Will

16 years, 5 months

Shipping a Tek 'scope

by technobug＠comcast.net

On Thu, 12 Nov 2009 15:35:03 -0800, Chuck Guzis wrote: > [...] > You can say that again. While I don't miss fussing with the old > storage-tube scopes, a good analog scope is still a very valuable > tool (mine is an old Tek 465). I wouldn't mind owning a 7000 series > unit with a nice palette of plugins, but I suspect those are still in > high demand and command real money. > > --Chuck On Thu, 12 Nov 2009 18:51:34 -0500, Dave McGuire wrote: > 770x scopes are relatively cheap, but a 790x in good shape will > set you back may hundreds of dollars. The good thing is that they're > practically indestructible. > [...] I've seen quite a few 770x and 79xx scopes come through my local scraper in the last few years and haven't sold. Right now, the gold value in these beasts are worth more than what people are willing to pay and almost all are hitting the scrap bin. As a house warmer I keep a 7944 around - a two beam unit that will display 8 inputs, but use a Tek 2465B when I need the speed. CRC

16 years, 5 months

large core memory on Ventura CraigsList! item 1459663074

by shumaker＠att.net

for the listers that lust after core memory, there is one up on the Ventura CraigsList that appears to be a complete intact subsystem with all support circuitry in original housing. Described as a Litton Mass Core Memory Unit with an Ampex Core Assembly inside, poster put up several nice photos wants $450 for it steve

16 years, 5 months

Shipping a Tek 'scope

by john_finigan＠yahoo.com

Tony Duell wrote: > The 555 even has regulated heater supplies. The heater > transformer is fed > through a saturable reactor. The current in the control > winding of that > comes from a pentode valve in the PSU unit, the grid > voltage of that is > controlled by a bright-emitter diode running off one of the > heater lines. > So the thing actually gets the RMS value of the heater > supplies correct > (which is what you want, of course). That's fascinating. I'd seen "passive" ballast tubes for heater regulation, but not an "active" solution like this. I found a good write-up at: http://www.radiomuseum.org/forum/2as15_how_it_works.html Especially interesting to me is the mechanical link in the diode that shorts it out when the filament burns out, pulling down the regulated voltage. I wonder if they learned the necessity of that the hard way. John Finigan

16 years, 5 months

Walkthrough of a small datacenter 1992

by rmg＠ranma.com

Just ran across this list. I thought I'd share this with all of you. http://www.youtube.com/watch?v=am60T-p7f1E This was when I was working at NASA Ames -- NASA Science Internet (NSIPO), Building N-233. I had a Sony Hi8 I just had bought and was testing out. I'm surprised I kept this footage. Enjoy! Rob Gutierrez

16 years, 5 months

Free: Dual Pentium Motherboard

by devonstopps＠gmail.com

I have one Asus PCI/I-P54NP4D dual processor Pentium motherboard (Socket5). Has memory and one CPU. Free plus shipping from Kingston, ON.

16 years, 5 months

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb