Re: VIC-42

From: Gerrit Heitsch <>
Date: Thu, 24 Jun 2021 08:51:27 +0200
Message-ID: <>
On 6/24/21 8:38 AM, Anders Carlsson wrote:
> Or like Helmut Proxa mentioned on FB, that Commodore Germany once got a 
> big batch of 6500/1 chips preprogrammed for IEEE drives, but the chips 
> they required were the one for the 1520 plotter so it was dead weight to 
> them and Helmut got access to the spares. 

You sure you're not mixing up things here? I don't know of IEEE drives 
that use a 6500/1. I know they used a 6530 which is IO/RAM/ROM in one 
chip and in some drives (*) they used 6530 with an adapter to replace 
the internal ROM (with bugs or wrong code) with an external 2716.

(*) SFD1001 for example

Received on 2021-06-24 09:01:53

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