Hatta wrote:
> I picked up an Apple II joystick, model A2M2002. 
> The joystick works just fine, but the buttons
> don't work.  
> 
> I can open up the joystick, and bridge
> the connections and peek at the buttons 
> and see them work. So I know the connection
> is ok. 
> 
> When I press the buttons they click, so the
> switches ought to be engaging. So I'm pretty
> sure the switches are bad. They say "omron b3f"
> on the back of them.  But there appear to be
> many different types of these.  Does anyone
> know what switches I can get to replace these?

There's no need to guess whether the switches are working.
You can test for continuity across the switches when they
are pressed with a multimeter (under $10 and infinitely
useful) or even with a battery, a resistor, and an LED.

If you look at a schematic of the joystick and the pinout
of the connector, you can check both switches without opening
the case.

-michael

NadaNet and AppleCrate II: parallel computing for Apple II computers!
Home page: http://home.comcast.net/~mjmahon

"The wastebasket is our most important design
tool--and it's seriously underused."
--- SBBSecho 2.12-Win32