Carl Denk wrote:

> Thanks for the quick reply. The closest thing to a o-scope I have is
> the PC sound card plus Zeitnitz's software
> http://www.zeitnitz.de/Christian/index.php?sel=scope_en Would have to
> make a voltage divider to get the 5 volt down below 1 volt, but
> that's no problem. Do you think that will work. 

You can use the soundcard for AC -- which is what it is designed for
anyway :)  Just block DC by sending the signal through a capacitor. This
will create a highpass filter; make sure the cap is big enough so that
the cutoff frequency is low enough (far enough below the 60 Hz you want
to see).

Gerhard
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