- vcf-midatlantic - lists.vcfed.org

10 meg cartridge system
by Bill Degnan 12 May '21

12 May '21

This came in through the kennettclassic.com contact form: "we need working 10 meg cartridge system can you help?" What do you think this person is referring to? Tallgrass? Corvus? Alloy? Bill

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(no subject)
by Bill Degnan 11 May '21

11 May '21

This came in through the kennettclassic.com contact form: "we need working 10 meg cartridge system can you help?" What do you think this person is referring to? Bill

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Re: [vcf-midatlantic] (no subject)
by W. Bryan Caudle 11 May '21

11 May '21

Something like this? We have one of these drives but it is untested at this time. Would be happy to loan it out or collaborate on a project if needed. Sent from my iPhone > On May 11, 2021, at 6:53 PM, Bob Aviles via vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> wrote: > > > <mime-attachment>

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Value of Air Compressor in CDL workshop
by Martin Flynn 11 May '21

11 May '21

CDL has an offer on the table for the donation of a used 5HP air compressor. Grainger Model is 3Z724, needs work. Any value during workshops other than air for soldering stations?

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Mac IIci, dead after power on
by Ethan O'Toole 10 May '21

10 May '21

Working on IIci I picked up at swap meet. Ex-Cisco, it's gonna be sweet. I read that the battery doesn't matter. Pulled it. Zero leakage. Pre-recap, no life. Post-recap, no life. (Re-capped machine.) 5v 500ma line is fine from the PSU 12v line is fine from the PSU 5v line is fine from the PSU Not sure about -12, but probably just audio? No power on chime. Screen is black, monitor wakes up. Haven't used the DB-15 to VGA 6 switch converter in ages but it worked last time. Powers on from keyboard or rear panel switch. I guess the first things to check are the CPU reset circuit and the clock. Any other pointers from Mac geeks? :-) Recapped the A1200 motherboard I picked up and it booted! Now trying to decide on keyboard options. - Ethan

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The KENBAK is Back (Again)
by Chris Fala 10 May '21

10 May '21

I know there are already replicas of this computer, but it is nice to see renewed interest. https://www.instructables.com/25-Scale-KENBAK-1-Personal-Computer-Reproduct…

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H89 for museum; gotek?
by Herb Johnson 09 May '21

09 May '21

Just as a matter of courtesy: consider starting a new thread when the conversation changes greatly from the "subject" line. I am a user, I'm not in charge. But since I'm posting a response, I'll change the subject line. The subject of the thread "Needed SD card solutions for museum" was about SDcard adapters to replace floppy drives on 8-bit computers. But most of the thread now is entirely about an H89 acquired which may be donated to the VCFed museum; and/or about the utility of a "Gotek" hardware product for it that emulates various vintage floppy drives with file-storage. I would have ignored the thread, except by luck. I read this list online, after the fact; not by emails. And anyone looking backwards or search, would not find those H89 interests among the subject lines, until now. The H89 by Heath and Zenith is a great 8-bit Z80 system. It works fine with original hardware and software, and hard or soft sectored disks. One needs a controller for each, with drives dedicated for each. That's how it was done in the era. But people today do like putting modern widgets and new boards on it, some use modern mass storage. The H89 and support for it, or a system to restore or to pass to the Museum, are certainly worth their own discussion threads. As for modern SDcard or CompactFlash devices that emulate floppy drives, like GoTek. I don't follow them much. But it's unusual for them to support formats like Heath's hard-sectored USART based floppy controller. It's a technical challenge, not just "bugs" to fix. If GoTek supports that better over time, that's interesting and good news. Regards, Herb Johnson retrotechnology.com https://retrotechnology.com/herbs_stuff/s_zenith.html#h89 -- Herbert R. Johnson, New Jersey in the USA http://www.retrotechnology.com OR .net preserve, recover, restore 1970's computing email: hjohnson AT retrotechnology DOT com or try later herbjohnson AT comcast DOT net

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vcf-midatlantic] Value of Air Compressor in CDL workshop
by Herb Johnson 09 May '21

09 May '21

> used 5HP air compressor, Grainger Model is 3Z724, needs work. > This unit is actually 208, 3 Phase. It's belt driven and only > turns 1800 RPM at the motor pulley. Just my opinions, following. This is tremendous overkill for blowing some dust off some electronics, that being any vintage-computing interest. Especially when considering it will be operated in another room, meaning running air lines to workbenches. Cans of compressed air (or a shop-vac) solve the dust-cleaning problem immediately, cleanly, no oil. Otherwise it seems to me, CDL is talking about labor and capital improvements - like running lines between rooms, housing noisy compressors, equipment maintenance, filters, etc. But CDL didn't ask for advice. They asked VCFed, what as customers of CDL what they might use at their bench. So I'll hold my tongue about advice to CDL. But if they decide against acquiring it: 1) this might be a capital equipment tool, better suited for working on cars, trucks, mowers, big mechanical stuff. Are there not other groups at InfoAge who do that stuff? Equipment Maintenance? or the military vehicle folks? they may find better use, make repairs, make/keep it portable. Then it would be available to CDL intermittently. 2) If the unit is really worn out or busted; there's that 1800RPM 5HP electric motor. That's pretty hefty, and a low rotation rate (most motors are 3600RPM). That sure would nicely feed some rotating equipment (I own a lathe myself). Or maybe a DC or AC generator, as a motor/generator set. and CDL is in the end a "maker" group, parts is part of making (seems to me). But if they don't want a motor like that, some other group at InfoAge might. regards, Herb Johnson -- Herbert R. Johnson, New Jersey in the USA http://www.retrotechnology.com OR .net preserve, recover, restore 1970's computing email: hjohnson AT retrotechnology DOT com or try later herbjohnson AT comcast DOT net

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POLF - a new Commodore PET game
by Crawford Griffith 09 May '21

09 May '21

Folks, For you Commodore PET fans, David Given has written a new 3D game: http://cowlark.com/polf/ In the game, you navigate a maze, find a ball and push it into a hole. Then you move to a new maze layout. So, it’s not exactly DOOM, monochrome block graphics can only do so much, but thought you might find it amusing. David has some other vintage related things on his site also, and some interesting youtube videos where he disassembles and/or fixes vintage stuff. -Crawford

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Museum Report 2021-05-08
by Jeffrey Brace 08 May '21

08 May '21

A rainy day, so more visitors than usual. Dylan was docent and got the following: A group of 3 who wanted to look around by themselves. A group of 8 who wanted a quick tour. A group of 2 who wanted the long tour. A group of 2 who were repeat visitors who stayed an hour to play with all of the computers. ========================================= 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

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