This super regenerative detector circuit was found in an English documentation from 1963. The coil is frequency compliant. The transistors are germanium of the time.
This Linear Technology circuit was found in a 1980s documentation. The circuit can swing up to a...
This circuit is from Motorola's 1990 Linear Databook. The transistors allow equivalents and the...
March 2017 - Coilcraft SLR series inductors for currents up to 100 A can be obtained from Mouser...