This circuit was found in a 1965 General Electric manual. It is intended for cars that have negative ground. At the time there were vehicles with positive mass.
The gain of this amplifier is 10 times and the excursion to the output voltage is 6.0 V (peak to...
Suggested by an old American documentation the circuit below keeps a battery charged and at the...
This crystal-controlled oscillator was obtained from an American 1980s documentation. The circuit...