This sensitive receiver for the medium wave range was found in Radio Electronics magazine from December 1960. The circuit has a headphone output and is powered by just 3 V.
This well-known circuit is another version of a 2-transistor transmitter found on the Internet. In this...
This traditional amplifier configuration is from the National Semiconductor's Linear Applications Handbook...
We found this circuit in a 70s Electronic Design documentation. The circuit uses general-purpose...