We found this circuit in a 1977 National Semiconductor Databook. The circuit can use other FETs like the BF245 and has an input impedance of 10 megohms. The circuit gain is unitary.
Taken from a 1967 RCA publication, this circuit maintains a low current in the battery when it is...
We found this oscillator in an English documentation from 1977. The symmetrical supply, in fact,...
This circuit generates signals with opposite phases determined by C1 and adjusted by R2. The...