This 6-transistor commercial radio with 6 V supply was found in a Japanese publication from the 1960s. The circuit is a commercial superheterodyne with 150mW to 200mW of battery powered output.
We found this circuit in an old publication for radio amateurs from 1975. It is intended for...
Based on an Analog Devices LTC1540, this circuit consumes only 50 uA, serving to monitor the...
This oscillator was found in a book on transistors from 1954. The transistor is from the time, and...