Found in a 1968 documentation, this circuit provides symmetrical voltages determined by component values. The regulator is a shunt type.
With this preamplifier it is possible to use a small speaker as a microphone. The circuit is also...
We found this circuit in the September 1995 issue of Electronics Now magazine. The circuit has 6...
Other operational Amplifiers in the series, such as the MC34072, MC34074, MC35071, MC35072,...