Re: Commodore 65 and DIN8 cable

From: Rob Clarke <>
Date: Fri, 05 Feb 2016 22:38:44 +0100
Message-ID: <>
I think appletalk cables were 8-pin mini-din cables. Not sure they ever did them that short though.

On 5 February 2016 21:21:02 CET, "Michał Pleban" <> wrote:
>A quick update: Today I tried various resistor values between GND and
>RDATA to no avail. So I decided the best solution for me would be a
>shorter cable. I got a pair of scissors and began to cut the cable into
>and shorter parts, while one of its end was still plugged into the C65.
>I wrote a simple BASIC program which tries to download the disk
>directory 100 times and gives the percentage of successful operations.
>Here is the success rate as a function of cable length:
>100 mm - 15%
>60 mm - 70%
>50 mm - 90%
>40 mm - 95%
>30 mm - 100%
>Not bad - with a 30 mm cable I can read the directory reliably. SO to
>test things further, I created a 64 kB SQL file, then used the DOS COPY
>command to duplicate it, and finally used TYPE to display it on the
>screen. All the operations were performed without errors.
>So I conclude that a 30 mm cable does not cause any problems with disk
>operations. Perhaps it would be best to make it 25 mm just in case -
>signals will also need to go a bit over the PCB and the flat ribbon
>cable before they reach the drive.
>The big question is now: where can I get a 25 mm mini-DIN8 cable? :-)
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Sent from my Android phone with K-9 Mail. Please excuse my brevity.

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Received on 2016-02-05 22:01:00

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