The purpose of this circuit is to check the linearity of SSB amplifiers. The circuit was found in an old documentation for hams. The diode is a general purpose detector type.
This circuit has a high input impedance and low output impedance, serving as an adapter for...
We found this simple warning circuit for car blinkers (arrow) in a 1987 publication. The relay must...
This 1987 circuit has a very interesting concept. It powers a second set of rhythmic lights from...