This circuit was found in a 1970s General Electric documentation. This circuit already used an emitting LED. The circuit operates at frequencies from 50 Hz to 50 kHz with short pulses
We found this circuit with JFETs in a Radio Electronics magazine from June 1969. The circuit has...
This 1 kHz oscillator uses a Norton LM3900 operating system. The frequency depends on C1 and R1...
Found in a Motorola manual from the 1980s, this circuit uses components from the era. The circuit...