This circuit is from a Radio Electronics from March 1960. The generator works with a 22.5 V battery, generating good intensity signals determined by the LC circuit.
This circuit was obtained from a 1967 General Electric documentation. The circuit makes use of...
Other operational amplifiers in the series, such as the MC34072, MC34074, MC35071, MC35072,...
We found this circuit in a 1973 technical documentation. The circuit is implemented with the doors...