Re: C64 Problem

From: Marko Mäkelä (
Date: 2005-06-27 13:33:25

On Mon, Jun 27, 2005 at 12:37:54AM -0400, William Levak wrote:
> On Sat, 25 Jun 2005, fachat wrote:
> > Only the C64C had a plug on the tape connector with a 
> > resistor between the two outmost pins. It does not matter, however,
> > whether this is plugged in or not.
> Pins 1 and 2 are ground and +5 volts.  It looks like someone attempted 
> some surge suppression.

I think André meant pins 1 and 6, which are ground and sense.  It sounds
like a dongle for Leaderboard Golf.  Out of curiosity, what is the
resistance of the resistor?  A short circuit should work equally well.
The only Commodore 64 interface that I know where the resistance matters
is in the keyboard: if you make one of the wires connected to "shift lock"
output '1' and the other output '0', you can distinguish between left shift
and shift lock.


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