- vcf-midatlantic - lists.vcfed.org

Next-branded laser printer
by william degnan 26 Nov '16

26 Nov '16

For trade..i plan to being to the holiday party a Next-branded Laser printer, a modified HP Laserjet II. I will try to test it this week, it's complete probably works or is close. Should be able to accept a HP Laserjet cartridges and replacement parts. If you have a NEXT computer you might not have one of these. I might have a spare i/o cable, not sure even what the cable type would be. Bill Degnan twitter: billdeg vintagecomputer.net

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(Mostly) 68k Macs at Festivus (FTAGH)
by David Riley 26 Nov '16

26 Nov '16

(Sorry if this is a duplicate; I wanted to make sure the MX change didn't break things) Hi all, As promised, I've catalogued my uncle's old machines that I'm bringing to Festivus. I've removed the ones that are already claimed, everything else is available. All have had batteries removed (some were stored in a garage with them in, as noted, with the usual disastrous effects). Except where noted, most of this is untested, so expect to have to perform some maintenance. Please let me know ahead of time what you'd like so I can pre-assign recipients. I'd like to see it all go at Festivus. 2x LC 475 1x Performa 400 (LCII) 2x LCIII 1x LCII 1x LCII with bad battery corrosion on LB, may be unrecoverable, but RAM, Ethernet card and case/parts seem fine 3x PowerBook AC adaptors 1x PowerBook Duo AC adaptor 1x PowerBook G4 AC adaptor 2x AAUI-10Base2 adaptors 1x PowerBook video adaptor 1x "puck" PowerBook AC adaptor, computer end broken (tip snapped off) In addition, I think there might be a PM7200 in there, and I have a PM7100/80 (very dirty, unknown condition) coming my way that I should be able to bring. Please mail me directly with enquiries. - Dave

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Bots on Hackaday
by Mike Loewen 26 Nov '16

26 Nov '16

Evan and Jeff Brace get a mention on Hackaday for their Maker Faire display: https://hackaday.com/2016/11/25/building-your-bots-the-1980s-way/ Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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Test
by Evan Koblentz 26 Nov '16

26 Nov '16

List company required a change in our MX records etc.; should work now.

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Important Festivus Information - Date, Time, Location, Cost
by Jeffrey Brace 26 Nov '16

26 Nov '16

Just making sure all are aware of Festivus. I will be posting reminders and final info in the coming week: *DATE:* 12/3 & 12/4 Saturday, Dec. 3 and Sunday Dec.4 *TIME:* Start about 10 A.M. on Saturday and goes late into the night until everyone sleeps. End about 5 P.M. on Sunday. (Re-starts around 10 A.M. Sunday morning) *LOCATION:* InfoAge Building 9010C/D - (2201 Marconi Road, Wall Township, NJ) - It will be straight ahead once you enter through the gate. The door is marked Sandy Recovery and is up the steps. *COST:* $10 for all members attending the workshop, which VCF donates to InfoAge as thanks for providing the space for us. $25 more if you are staying overnight. -- Jeff Brace - ark72axow(a)gmail.com

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Commodore stuff at Festivus
by Herb Johnson 18 Nov '16

18 Nov '16

http://www.retrotechnology.com/herbs_stuff/amiga.html These are Amiga, C-64, C-128, VIC-20 related service manuals, published by Commodore. I'll bring them to Festivus for some deal. Probably 25 pounds of manuals in a box. Most of these are probably online as PDF's, I'm told. I'd like something for these - ALL of these. Same deal, for a dozen books about C-128's or C-64's or related devices. Assembly language, programming, user's stuff. Another box. I'll also bring a VIC-20 and C2N cassette drive, both in the box. I have a loose C2N too. Again, looking to pass on there for a modest price. These are common., they are not "mint". Herb -- Herbert R. Johnson, New Jersey USA http://www.retrotechnology.com OR .net

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EAI TR20 analog computer exhibit
by Herb Johnson 18 Nov '16

18 Nov '16

SVCatITC [Bill Inderrieden] posted: >> I need analog math problems to be submitted, so that when the >> TR20 is restored, we'll have simulations to run on the computer. >> I'll make a list of what computational modules we have so you >> know what to work with, i.e. integrators, DFG's, summers, etc. >> The plan is to have an XY recorder and XY scope for results output. Bill and all: I've taken the liberty to post a reply under a proper subject line that's relevant to the thread. Not "digest question blah blah" which is irrelevant and will be impractical to search back for in the future. I really encourage people who post, to use relevant subject lines, but this is up to the Moderator to enforce, (except when he doesn't). Bill, I worked with EIA analog computers long ago, and I'm an old electrical engineer. So it's good to see this EIA TR20 will be restored and demonstrated. But very few people in the VCFed list, have any experience with analog computing or with differential equations. Fewer visitors will know this stuff. The classic demo of these sorts of systems, is some kind of "bouncing ball" display. Everyone has seen a ball bounce, so it's familiar. There ought to be enough integrators to make a damped oscillator. Since you want a chart recorder output, the frequencies will be sub-audio. But you might allow for a speed-up at audio rates, so an oscilloscope and speaker can demonstrate operation, without requiring the chart recorder and using up paper and ink - all points of failure, weeks and months later. If it were my choice, I'd go "audio" so it's easier for the docents to demonstrate the unit and avoid problems with chart recorders. That's my considerations. Something simple, familiar, and convenient to demonstrate when you aren't there. The amazing thing will be that it works, and has been preserved. We can run real programs, another day. Herb Johnson -- Herbert R. Johnson, New Jersey USA http://www.retrotechnology.com OR .net

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Re: [vcf-midatlantic] Digest, Vol 13, Issue 12 Question on VCFed and Lists
by Evan Koblentz 17 Nov '16

17 Nov '16

>> I need analog math problems to be submitted, so that when the TR20 is restored, we'll have simulations to run on the computer. I'll make a list of what computational modules we have so you know what to work with, i.e. integrators, DFG's, summers, etc. The plan is to have an XY recorder and XY scope for results output. We have some books on the subject. Aren't there also samples in the TR20 documentation? >> As you saw, Evan becomes the safety net and guides us all in the right direction. As he self proclaims himself: "chief cat-herder". It all started when nobody else was foolish enough. :)

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Re: [vcf-midatlantic] update: "modern history" exhibit
by Evan Koblentz 17 Nov '16

17 Nov '16

>> Evan,If you would like a video camera for the display, I've got a broken JVC Everio GZ-MC500. It was a cool DVD-quality Handycam-esque unit from 2005. It might be too modern in one sense, but it's small. And being broken, having it glued to a wall seems like a good use for it. That's perfect, thank you. Can you bring it to Festivus? If not, then I'll let you know where to mail it.

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Re: [vcf-midatlantic] update: "modern history" exhibit
by Jonathan Sturges 17 Nov '16

17 Nov '16

Evan,If you would like a video camera for the display, I've got a broken JVC Everio GZ-MC500. It was a cool DVD-quality Handycam-esque unit from 2005. It might be too modern in one sense, but it's small. And being broken, having it glued to a wall seems like a good use for it. -Jonathan

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