Can be used as a shield, this old American documentation circuit offers digitally selected attenuation values from 1 to 0.0001. The component used is uncommon today.
This circuit was found in an Electronic Design from the 90's. Its purpose is to stretch pulses used...
This shortwave preselector was found in the July 1994 issue of Radio Electronics magazine. The...
Suggested by Amperex in a 1968 documentation, this circuit is based on TAA370, an integrated circuit...