This circuit is based on an unusual component today. It demodulates a 10.7 MHz FI signal and was found in 1980s documentation.
The signal itself captured by the (long) antenna serves to feed this simple experimental circuit....
This voltage level-triggered circuit was found in a 1969 Ferranti English documentation. Modern...
This amplifier makes use of a simple 12 to 30 W source, having been found in the SGS manual of...