The configuration shown allows to obtain a high voltage gain for FETs. FETs can be BF245 or MPF102. The circuit is from the 1977 National Semiconductor FET Databook.
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...