Found in an Electronic Design from the 90s, this circuit uses high voltage operationals of the time to excite a piezoelectric motor in a bridge circuit.
This circuit also makes use of a field effect transistor (JFET) which can be the BF245 and has an...
We can use this circuit to connect low impedance microphones and even small speakers used as a...
When S1 is in 1, the circuit operates with of half the total power applied to the load. When in...