20 Dec
2001
20 Dec
'01
6:17 p.m.
On Thu, 20 Dec 2001, Tony Duell wrote:
Yes, those are the correct values as read from the pot. The IBM is 100K
and the Kraft is 145K.
I'll have to dig out my Tandy badged one and look into that now :)
The Kraft
stick has pots labelled 365Z145K<ohm> and the IBM are
365Z100K<ohm>. There are also some capacitors (markings say 684Z) in
I wonder if the 'IBM' pots are 100K and the 'Kraft' ones 145K. The latter
seems like a rather odd value... The Kraft
joystick works on my Apple //e.
Now that is supprising in a way. The Apple ][ joystick interface is
also electrically much the same as the PC one (it's based on a 558
quad timer chip, with the joystick pots as the timing resistors). I
would have thought the same joysticks (electrically) could be used on
both machines. Oh well. It's the CoCo that's the 'odd one out'....
And I hope your comment about me doesn't mean you
once thought I was
sane... Because AFAIK I've never been sane. Thankfully.
No, I pretty much figured you to be not sane from a very early age ;)
Sellam Ismail Vintage Computer Festival
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