Re: Battlezone sound problems

For audio use you can simply take a piezo transducer (or crystal
earphone) in series with a .01 uF capacitor (to remove DC) and you will
have a very handy way to listen to just about anywhere in a circuit. It
will produce practically no loading and can even listen to the output of
opamps.

Bonus, you can use it as a microphone for injecting a signal into opamp
inputs.

I had one of these strapped inside my first computer (Commodore PET)
right on the output of the 6522. It could easily be heard even though
it was inside the case.

"Christopher X. Candreva" wrote:
>
> On Fri, 15 Feb 2002, Anthony Ramos wrote:
>
> > I don't have an oscilloscope. I think I'm gonna just close the
> > switch manually by crossing the input/output pins. If that
> > produces sound, I'll know that the 4066 is bad.
>
> If you plan on working on games, get a scope.
>
> Barring that, since you are working on a sound circuit, how about small
> speaker, or headphones ? Trace the circuit back until you hear something.
>
> ==========================================================
> Chris Candreva -- chris@westnet.com -- (914) 967-7816
> WestNet Internet Services of Westchester
> http://www.westnet.com/
>
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Received on Fri Feb 15 13:10:45 2002