- vcf-midatlantic - lists.vcfed.org

Museum updates
by Evan Koblentz 23 Mar '17

23 Mar '17

Tony brought some of his employees to the museum today to replace our center door with a regular section of wall. They'll continue working on it tomorrow and finish Monday. Not having the unnecessary door there means they're won't be an ugly brown blob behind George, and also that we'll have more room for a timeline exhibit in the hallway (probably this summer). Adam and I are going to be at the museum all weekend to finish other projects in time for VCF East. Getting the tablets all done, completing the modern history exhibit, and a ton of minor things nobody will notice but will collectively be an improvement. Jeff B. and others are also expected.

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What limited the C64's CPU to ~ 1 MHz?
by John Heritage 23 Mar '17

23 Mar '17

Does anyone know the reason why the C64 only ran at ~1 MHz? Was it to keep RAM costs or system cost as low as possible or was there a different engineering reason? (The Atari and BBC machines managed higher clocks, but were very expensive compared to the C= devices, although the 1977 Atari 2600 managed ~1.19 MHz out of it's 6507 (6502 with low pin count/less addressing)..

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Me on WBAI in a few minutes
by Evan Koblentz 23 Mar '17

23 Mar '17

Being interviewed on WBAI (Long Island) "PC Radio Show" imminently, re: VCF East.

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Jason Scott is making a renewed push to image Apple ][ software...
by Mark Whittington 22 Mar '17

22 Mar '17

Jason (of archive.org and textfiles.com fame) is renewing efforts to track down and image as much of the existing original Apple ][ software as possible. More info here, summary below -- http://ascii.textfiles.com/archives/5180 In short, a lot of the software that's been archived so far was sourced from cracked versions that were often modified greatly from the original releases. There's now a team of very skilled folks who want to be sure that the pristine versions of these programs are archived and that so-called "silent crack" versions are available for future generations to enjoy. In this context, a "silent crack" is one that removes the copy protection and nothing more, and without adding crack screens or attributions. They're getting to the end of the collections that they already have and are putting out the call for more from people who may have collections sitting around gathering dust in boxes. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Re: [vcf-midatlantic] Univac 1 memory
by Mike Loewen 22 Mar '17

22 Mar '17

> On Sun, 12 Mar 2017, Evan Koblentz wrote: >>> Mercury delay memory from a Univac 1. >> >> Do you know if it actually * is * from a U-1? > > http://www.computerhistory.org/revolution/early-computer-companies/5/100/14… > >> If so, then feel free to bid and then donate artifact. :) > > Hey, I'm just a retiree on a fixed income. The Univac memory sold for $18,701. Just a bit over my budget. Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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Re: MARCHIAN Invasion of Trenton "Digest, Vol 17, Issue 20"
by SVCatITC＠aol.com 22 Mar '17

22 Mar '17

To Neil; Newbe here.... Don't kick yourself! You were way too polite in describing the inconsiderate guy dominating the Q&A. I felt bad for you having to deal with that guy. I attended your course and found it amazing that you were able to cover what you could, even when being HIGHJACKED by the boor you wouldn't let you finish at least one thought! It's a shame that you couldn't get through the presentation to your satisfaction. There was a lot of info to cram into one hour. Kudos to you for navigating around the potholes of cranky technology and the Gremlins residing therein. It is a brave man who can stand up there and fight such pitfalls in oratory. Thank You! and Congrats! Bill Inderrieden Original Message Message: 5 Date: Sun, 19 Mar 2017 22:33:48 -0400 From: Neil Cherry <ncherry(a)linuxha.com> To: vcf-midatlantic _vcf-midatlantic(a)lists.vintagecomputerfederation.org_ (mailto:vcf-midatlantic@lists.vintagecomputerfederation.org) >> "Finally I let one gentleman dominate the questioning >> and I might not have fully understood what he was asking."

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Re: [vcf-midatlantic] Help IDing card
by Support 20 Mar '17

20 Mar '17

>From what I remember back in those days - these Controllers changed almost weekly. It was a really crazy time with all the clone hardware. Every corner Tech Shop sold these Controllers, and who knows where they got them from. It was really the Wild West once the Clones took over (1989-90), and lasted most of that whole decade really. I would be really surprised if you find an actual manual. Most of the times my dealer would give me a photocopy page if there was even anything. The more 'standard' or mass produced Controllers came in boxes... but also cost 2-3x as much. If I had to guess it's MFM over RLL since RLL was much more rare. Shouldn't hurt to test on either drive - assuming you can find any that are still working. Anyway, good luck. $.02 Henry S. Courbis Office Toll Free: (800) REACTIVE (732-2848) Office/Mobile Direct: (856) 779-1900 www.ReactiveMicro.com - Sales, Support, and News, Our Headquarters on the Internet ReactiveMicro.com/wiki - Support, Software, Manuals, and History. Create your own page today! Facebook.com/reactivemicrousa - Our Social Media Outlet and Support On Mon, Mar 20, 2017 at 7:27 PM, Christopher Blackmon via vcf-midatlantic < vcf-midatlantic(a)lists.vintagecomputerfederation.org> wrote: > > > ---------- Forwarded message ---------- > From: Christopher Blackmon <ckblackm(a)yahoo.com> > To: Tony Bogan <thebogans(a)mac.com> > Cc: vcf-midatlantic <vcf-midatlantic(a)lists.vintagecomputerfederation.org> > Bcc: > Date: Mon, 20 Mar 2017 23:27:14 +0000 (UTC) > Subject: Re: [vcf-midatlantic] Help IDing card > https://www.dropbox.com/sh/x15qpbmvvznsn8w/AAB37n56zJ4jBTWOGhYe_s8Ba?dl=0 > > I put 3 pictures at this location. > thanks,Christopher. > > >

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Re: [vcf-midatlantic] Help IDing card
by Jason Perkins 20 Mar '17

20 Mar '17

Looks like a ST506 type disk controller. Probably RLL. -J On Mon, Mar 20, 2017 at 7:39 PM Christopher Blackmon via vcf-midatlantic < vcf-midatlantic(a)lists.vintagecomputerfederation.org> wrote: > https://www.dropbox.com/sh/x15qpbmvvznsn8w/AAB37n56zJ4jBTWOGhYe_s8Ba?dl=0 > > I put 3 pictures at this location. > thanks,Christopher. > > -- Jason Perkins 313 355 0085 Sent from my iPhone

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Re: [vcf-midatlantic] Help IDing card
by Neil Cherry 20 Mar '17

20 Mar '17

On 03/20/2017 02:04 PM, Christopher Blackmon via vcf-midatlantic wrote: > I've got a full length 16-bit ISA card with the part # WD1006V-WA2 on it that I'm > trying to find the spec's for... I've found several that are close via google, but none > that are exact matches. Would anyone happento have some info on this card? A guess (for memory long time ago old): Western Digital Hard Drive interface card. ST-506 (?) insterface. Probably 2 drive interface, each drive needed 1 long and 1 short header cable. I don't know if it supports RLL but I kind of doubt it. I recall jumping into ROM on the card to format the drives. Sorry that's all I have. -- Linux Home Automation Neil Cherry ncherry(a)linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies

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Re: [vcf-midatlantic] Help IDing card
by Evan Koblentz 20 Mar '17

20 Mar '17

>> Does the list allow photo attachments or do I need to use dropbox? We prefer that you post them somewhere and then email the link.

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