This car alternator voltage regulator was found in a former General Electric publication. It maintains the voltage at 14.5 V. The alternator diodes are power types.
This General Electric circuit is from the 80's. The PUTs used in this meter are not common...
Found in a 1964 Electronic Design, this circuit generates pulses based on an avalanche diode of...
This circuit, which consists of an audio oscillator, was found in a Radio Electronics magazine from...