This circuit may be of interest to restorers of old video equipment. We found it in the Radio Electronics magazine of December 1989.
Found in a RCA publication from the 1970s, this circuit is intended for the production of pulse...
In this circuit, the LED Will blink in a presence of na áudio signal in the input. Gain is...
This oscillator version is from an RCA documentation from the 1970s. Transistors support modern...