voltage to sound

You can run the DC to a voltage to frequency converter. Then run the frequency to an powered speaker. V/F converters are in books of NE555 projects, or you can use half of a a NE567 Phase lock loop, or look on one of the circuits websites for a voltage to frequency converter.
Or you can drive a speaker with the dc and an instrumentation amp, but only elephants will hear the sound.


2013-04-21 12:16 pm
Would this do?


Easy to make?