hello all, i'm new here, and know very little about electronics. but i have a specific project in mind that i could use some help on...
i'm trying to take the signal from an electric guitar or bass, and drive a piezo element so that it vibrates a object that is not physically in contact with the instrument.
all i could find at radioshack that looked relevant was a 400mW 8-pin audio amplifier, with a layout like this
gain / gain
-input / bypass
+input / Vs
ground / Vout
first question is, what is the -input? a typical 1/8" jack has a +lead and a ground, but no -input. second, if Vs is the voltage supply, and i want to hook up an 8V battery, where does the negative terminal of the battery connect to? same goes for the piezo; if Vout goes to the +lead, what does the -lead connect to?
or is this kind of thing more complicated than this? if anyone has a suggestion for other ways to do this, that would be much appreciated.
i'm trying to take the signal from an electric guitar or bass, and drive a piezo element so that it vibrates a object that is not physically in contact with the instrument.
all i could find at radioshack that looked relevant was a 400mW 8-pin audio amplifier, with a layout like this
gain / gain
-input / bypass
+input / Vs
ground / Vout
first question is, what is the -input? a typical 1/8" jack has a +lead and a ground, but no -input. second, if Vs is the voltage supply, and i want to hook up an 8V battery, where does the negative terminal of the battery connect to? same goes for the piezo; if Vout goes to the +lead, what does the -lead connect to?
or is this kind of thing more complicated than this? if anyone has a suggestion for other ways to do this, that would be much appreciated.