The integrated circuit used is no longer common today. The circuit is from Motorola's 1990 Linear Databook. The characteristics are given in the table.
This reflex receiver for the mid-wave range employs germanium transistors of the time. We found it in...
Using a 106 series SCR, this circuit was found in the May 1971 Radio Electronics magazine. The...
This circuit was found in an old manual of linear integrated circuits of the 80's. Equivalent...