[vcf-midatlantic] Working Tandy 1000 or 2000

Kelly Leavitt kelly at catcorner.org
Tue Aug 28 20:45:38 EDT 2018

The 2000 and the 1000 were remarkably different beasts. The 2000 had a basic speaker that did beeps. There was a rumored TV board but I have never seen one in the wild. Fun tidbit, the 2000 loaded BIOS from floppy (a 720k 5.25 inch floppy). The built in ROM was a simple boot loader.

The 1000 was mostly compatible with the XT/jr with some added sound and graphics capabilities.

I have working models of the 1000 hear that I cant test with Tandy's Basica if you'd like. My 2000's are iffy so I can't make any promises. Send me the pokes you'd like to try.


kelly at catcorner.org

From: vcf-midatlantic <vcf-midatlantic-bounces at lists.vcfed.org> on behalf of Jonathan Gevaryahu via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org>
Sent: Sunday, August 26, 2018 5:16 AM
To: vcf-midatlantic at lists.vcfed.org
Cc: Jonathan Gevaryahu
Subject: [vcf-midatlantic] Working Tandy 1000 or 2000

Does VCF have a working Tandy 1000 or 2000 on display or in the warehouse?

I need someone with access to a working Tandy 1000/2000 to do some
poking from basic of the sound chip, since there's an issue I'm running
into with a possible incompatibility of the Tandy 1000/2000 NCR8496 PSG
(sound chip) and the more common SN76489/SN76496 PSG which the
colecovision etc used.

Jonathan Gevaryahu
jgevaryahu at gmail.com
jgevaryahu at hotmail.com

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