This reflex receiver for the mid-wave range employs germanium transistors of the time. We found it in an English documentation from 1967.
Suggested by General Electric in a 1965 publication this circuit uses a light bulb. Can be changed...
This switching circuit with transistors was found in Radio Electronics magazine from June 1964. It...
Only signals about 1 kHz can pass through this tuned circuit. The main component is a operational...