This nonlinear gain circuit was found in a 1965 Electronic Design. The configuration can be used as a basis for modern designs with equivalent transistors.
We found this circuit in an old documentation for hams. In it we have the way to use a varicap to...
This fuzz guitar circuitry was found in an American documentation from the 80's. Transistors can be...
Of course, the range of this transmitter found in a 1992 documentation is not exactly 4 km, as it...