This two-microphone amplifier was found in a April 1961 Radio Electronics Magazine. The circuit is powered by battery and has a 600-ohm line output.
This circuit is for analog TV video signals and was found in the March 1988 issue of Radio...
The signal itself captured by the (long) antenna serves to feed this simple experimental circuit....
Although this project has only 3 digits, nothing prevents it from being modified to operate with a...