Found in the July 1980 Radio Electronics magazine, this circuit uses an integrated circuit from the time and a power Darlington. The Darlington must be equipped with a heat sink.
The circuit presented is a simple MW tuner that can be plugged into the input of any audio...
This simple window comparator based on the well-known LM339 was found in the June 1998 issue of...
This multivibrator with the 4001 was found in the November 1974 Radio Electronics magazine. The...