Re: Weird PCB attached to C64 ROM

From: Jim Brain <>
Date: Mon, 20 Feb 2012 00:53:10 -0600
Message-ID: <>
On 2/20/2012 12:51 AM, Baltissen, GJPAA (Ruud) wrote:
> Hallo Jim,
>> I'm mainly interested in the circuit board...
> I found the site but I didn't see a picture showing the PCB. But what
> about a 74LS293 4-bit counter which outputs are connected to the extra
> address lines? The restore key, as seen by Donni, plus
> resistor/condensator can create the needed pulse. Some LEDs or better, a
> 7-segments display, tell you what part is choosen.
It's at the bottom of the page:


Jim Brain

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Received on 2012-02-20 07:00:23

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