- vcf-midatlantic - lists.vcfed.org

TRS-80 Model 4 (working) $150 - Craigslist
by Alexander Jacocks 11 Dec '20

11 Dec '20

All, I saw this TRS-80 Model 4 on Craigslist, near me: https://washingtondc.craigslist.org/mld/sys/d/bethesda-trs-80-model/7244872… If anyone would like it, I'd be happy to pick it up and bring it to InfoAge. Let me know, Alex

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Three Apple // systems and a Tandy 1000SX for sale
by Bill Degnan 08 Dec '20

08 Dec '20

Apple //e "original" system with tons of software $350 FIRM (includes drives, printer,monitor needs service) Apple //e "platinum" with boxes (monitor, system, drives) $600 OBO Apple //c with boxes (system, display, display stand, 2 printers, cables, documentation) $650 OBO also available - Tandy SX 1000 with harddrive, working, not boxed. $250 FIRM All of these systems are in nice cosmetic shape, no mouse or other damage. You're welcome to visit and set up before you buy. Shipping of systems would incur an added packing/shipping labor charge. Pick up preferred. These items are not listed on Ebay. Bill Degnan kennettclassic.com/contact.cfm

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USB Floppies that are flexible? Cleaning a 3.5" drive?
by John Heritage 08 Dec '20

08 Dec '20

Hey folks, two asks -- I'm looking for advice: Are there any USB or external floppy drive arrangements that are flexible like internal floppy drives for allowing formatting and/or reading of unusual sector sizes or formats? Ex: 800KB Atari ST floppies and PC DOS disks formatted in unusual sizes .. Second question is -what is the easiest way to clean the heads on a 3.5" floppy? If I have a bunch of 'suspect' floppies that I want to clean the head between every disk it seems a little painful to disassemble the drive enough to see the heads and clean. Are there any alternatives? (I'm used to 5.25" drives where there's often enough space in there to wipe without disassembly). Maybe there's a good (modern) source of 3.5" cleaning floppies? (P.S. I have a K6-3+ PC I can put a fresh OS on so I may be cleaning a legacy 3.5" drive instead of a USB floppy). Thanks! John

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Re: [vcf-midatlantic] Swapmeet
by Adam Michlin 08 Dec '20

08 Dec '20

Here's a nice video: https://www.youtube.com/watch?v=CzmLx7OL640 A few pictures were posted to the official Instagram at: https://www.instagram.com/p/CHSopNwHSPh/ Best wishes, -Adam --- Adam Michlin VCF Social Media Specialist Facebook: https://www.facebook.com/vcfederation Instagram: https://www.instagram.com/vcfederation/ Twitter: https://twitter.com/vcfederation On Mon, Dec 7, 2020 at 1:11 PM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > I may have missed it but was there any video or pictures from the swap > meet? > > Sent from: > My extremely complicated, hand held electronic device. >

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Some lab equipment for sale
by W2HX 07 Dec '20

07 Dec '20

Stuff to help you troubleshoot and repair our vintage computers! Tenma 72-6615, Triple Supply. Two variable 0-30VDC @3A and one fixed 5VDC @3A. Nice shape, except for cracked banana insulator. Outputs can be paralleled for 6A or put in series for 60V. Has CV and CC modes. https://w2hx.com/forsale?prefix=ForSale/TENMA/72-6615/ Asking $125 plus shipping Next up. Tenma 72-7245, Dual supply, 180W, Two variable 0-30VDC @3A. Nice shape. Outputs can be paralleled for 6A or put in series for 60V. Has CV and CC modes. https://w2hx.com/forsale?prefix=ForSale/TENMA/72-7245/ Asking $100 plus shipping I have two LeCroy scopes that I am looking to sell. They are both in excellent condition and I would be happy to perform any test for you and record the results to confirm operational condition of them. LeCroy HDO 4024. 200 MHz, 4 channel, 2.5 GS/s one-shot, 125 GS/s repetitive sampling. 12 bit ADC! This is a 12 bit scope! Options: I2C, UART Serial decode. Absolutely no problems. Perfect, practically new. http://cdn.teledynelecroy.com/files/pdf/hdo4000_oscilloscope_datasheet.pdf Pictures here: https://w2hx.com/x/?prefix=x/LeCroy/HDO4024/ Asking $4,000 plus shipping. Offers accepted. Compare to ebay prices. LeCroy WaveRunner 610Zi 1 GHz analog BW, 4 channel, Single shot sampling 10 GS/s (4 channels) or 20 GS/s (2 channels) Missing the stylus pen, gently used but still in excellent condition Options: HDTV, JTA2, SPECTRUM, XWEB https://cdn.teledynelecroy.com/files/pdf/waverunner-6zi-datasheet.pdf Asking $3,000 plus shipping. Offers accepted. Compare to ebay prices! Pictures here: https://w2hx.com/x/?prefix=x/LeCroy/WaveRunner-610Zi/ Asking $6,000 plus shipping for both. Offers Accepted! Items located in New York, about 40 miles north of the city. Pick up welcome, will ship at cost (USA shipments only, sorry!) 73 Eugene W2HX Thanks 73 Eugene W2HX

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Virtual World of Commodore is TODAY!
by Jeffrey Brace 07 Dec '20

07 Dec '20

https://www.youtube.com/c/TorontoPETUsersGroup/live Info and schedule: https://www.tpug.ca/world-of-commodore/world-of-commodore-2020/ I will be presenting at 3PM and 5PM. Last minute preparation for me! Wish me luck! I'm gonna need it ;) -- ========================================= Jeff Brace Vice President & Board Member Vintage Computer Festival East Show-runner Vintage Computer Federation is a 501c3 charity http://www.vcfed.org/ jeffrey(a)vcfed.org cell: 732-759-1783

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Swapmeet
by Sentrytv 07 Dec '20

07 Dec '20

I may have missed it but was there any video or pictures from the swap meet? Sent from: My extremely complicated, hand held electronic device.

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Anyone have a CompuPro / Godbout RAM 17 they would sell?
by Ethan O'Toole 07 Dec '20

07 Dec '20

Looking for a S100 RAM board for my IMSAI 8080. The 17 lets me open a window for the Northstar disk system. - Ethan

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Re: [vcf-midatlantic] History-of article on Heathkit, must-read
by Bill Degnan 07 Dec '20

07 Dec '20

On Mon, Dec 7, 2020 at 12:22 PM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > Thank you Herb! > > On that note. > > Maybe VCF and InfoAge could come up with some sort of plan to have a > Workshop that shows the average person what we do, as technicians and how > we go about repairing computers, TVs, radios and such. > I know right now it would have to be all virtual, but I don’t think it > would be much different then what VCF has done recently. > > Ultimately this could be done live and a setting like VCF East. > > And commenting on what Herb has said that this would help show people, > “why we do what we do.” > > Mike Rosen > > > Mike That's exactly why we started workshops back in the MARCH days. I for one really wanted to learn more from others more about the methodology of old computer repair, electronics, and testing. I wanted to learn about S-100 and DEC/PDP tech, which was before my time. We did a lot more with memory maps and program listings. We played around with in-circuit emulators too. I was always impressed with how some of the folks could trace a board without a schematic to troubleshoot it. Back in the mid 2000's there were few Youtube how to videos and a lot of the knowledge that's easy to find today had to be re-learned and re-documented for the vintage computer hobbyist. It was much harder to find manuals and documentation and we used to meet just to share paper copies of manuals and hard to find parts at earlier MARCH workshops. We were more focused on S-100, diskdrives and older stuff then. Anything older than an IBM PC. I don't agree that you can easily teach old-school at a VCF unless you disallow use of the internet and electronic copies of manuals to be used to tackle a problem. In other words, you'd have to "make it hard again" to really teach what it was like. That's the kind of hacking you did with Heathkit manuals and why good manuals were the key to their business. The accomplishments at today's VCF workshops are equally impressive perhaps but tools are a mix of old and new. The nature of diagnosis and repair has evolved away from purely vintage/old school ways. Bill

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Museum Report 2020-12-06
by Jeffrey Brace 06 Dec '20

06 Dec '20

After a few weeks of little to no visitors we had 12 visitors today. Four groups of 2 and a family of 5. One adult had high interest in the microchip exhibit because she used to verify the labeling on them by sight. She claimed that is why her eyesight went bad from squirting to look at the lettering on microchips at a factory in Hazlet. She also liked the TRS-80 Model 100. She had lots of questions about the different computers and really enjoyed them. There were others with mild interest and the family of 5 had 4 daughters who really enjoyed the paint programs. The father enjoyed trying basic on different computers. Looks like the cooler weather is bringing back the visitors after a unseasonably warm October and November. -- ========================================= Jeff Brace Vice President & Board Member Vintage Computer Festival East Show-runner Vintage Computer Federation is a 501c3 charity http://www.vcfed.org/ jeffrey(a)vcfed.org cell: 732-759-1783

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