We found this circuit in a 1965 Electronic Design. Transistors are still common but admit equivalents for some of them. The circuit drains a current of only 4 mA.
This sensitive Japanese mid-wave receiver from the 1960s has an output power of 45 mW and is...
This circuit appeared in a Radio Electronics magazine in March 1962. The circuit uses two...
What's different about this transistorized circuit is the fact that it doesn't use a voltage...