We found this circuit in documentation from National Semiconductor. For the medium wave range the coil consists of 50 + 50 turns of wire 28 in a ferrite rod.
This circuit assumes that a pulse produced by S1 has a constant duration determined by R1 and C1....
This circuit was found in a 90s Electronic Design. It uses integrated circuits that are not common...
This receiver for the citizen's band was found in the Radio Electronics magazine of June 1952. The...