We found this circuit in an old English documentation. Transistors support modern equivalents. The circuit converts signals in the 5 to 15 MHz band for tuning into a common medium wave radio.
This traditional circuit is from a 1972 RCA technical publication. The circuit can be developed with...
This well-known siren configuration using complementary transistors is from a 1980s documentation. The...
This 1967 Electronics World circuit is suitable for frequencies up to 1 MHz. The setting applies...