Kraft vs. IBM joystick innards comparison

From: Sellam Ismail <>
Date: Fri Dec 21 02:17:00 2001

On Thu, 20 Dec 2001, Tony Duell wrote:

> > 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...

Yes, those are the correct values as read from the pot. The IBM is 100K
and the Kraft is 145K.

> > 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'....

I'll have to dig out my Tandy badged one and look into that now :)

> 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
International Man of Intrigue and Danger
Received on Fri Dec 21 2001 - 02:17:00 GMT

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