[microsound] another CONTACT MIC question

[obscure@xxxxxxxxxx]

Sorry to intrude, but I finally went over to Radio Shack to try out one of
these Contact Mic things, based on notes I had taken off this list, so I
figure one of you might be able to help me:

Is a PIEZO BUZZER the same thing as a PIEZO TRANSDUCER? I can only find the
former at our shitty Canadian R/Shack, but I think I need the latter...
they are not the same thing are they?

Another question: once the PIEZO TRANSDUCER is connected to a 1/4" stereo
line, it should plug straight into a mixer and be feeding noise, no battery
power etc. necessary? Correct? So how does it work???

Sorry, if these questions are trivial, I'm doo-hickey illiterate, but I
want to using a 'contact' feed in an upcoming performance...

Please reply personally if you can help, spare the list or whatever...

MARK LALIBERTE
for Thinkbox