This digital signal attenuator was found in a 90s Electronic Design. The circuit operates at frequencies that are determined by the characteristics of the attenuator circuit.
The number of pulses produced by this circuit depends on the switch pressed. The circuit is from...
The signal itself captured by the (long) antenna serves to feed this simple experimental circuit....
Suggested by Motorola in a 1980s publication, this circuit is insensitive to changes in bias...