This very complex circuit in terms of the number of transistors was found in Radio Electronics from March 1966. The circuit is for low impedance headphones. The transistors are from the time.
aaa The circuit shown generates 100 kHz signals for calibrating the scale of a receiver in 100 to...
This circuit was found in a 1968’s General Electric documentation. The circuit uses components from...
The circuit shown has the advantage over the reductions with resistors to have a much higher...