How many 'Issued' board?

Discussions about Sinclair ZX80 and ZX81 Hardware
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100monkeys
Posts: 6
Joined: Sat Sep 20, 2008 7:33 pm

How many 'Issued' board?

Post by 100monkeys »

How many 'Issued' boards were manufactured in the life of the ZX81?

I have only seen 'ISSUE1'and 'ISSUE3'
I don't really know what my first one was (about 26 years ago?)
I don't really know what i did with it, probably gave it away, good ol me heheh.
I moved to APPLE][ after that (via a BBC/ACORN)

But now i am at an of 'retro prone' age ;) i have both the ISS1 and ISS2

There is an obvious difference between the 2.
But, could i use an ISS3 ULA to repair an older ISS1 board?

Regards
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BrunoFlorindo
Posts: 290
Joined: Sat May 10, 2008 2:46 am
Location: Anaheim, CA, USA

Re: How many 'Issued' board?

Post by BrunoFlorindo »

I don't know the answer to this question. :( Anyone? It's sad that he didn't get a reply when he made the question.
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