This 1960s Japanese 5-transistor radio is powered by 9 V and has good sensitivity for the medium wave range. The configuration is of the superheterodyne type with FI of 455 kHz.
This 3-digit code switch was obtained from an old American documentation. The capacitor is 470 uF...
This antenna or booster amplifier operates with signals from the midband (MW) range up to the VHF...
The circuit presented here shows how two flip-flops of a 4027 can be connected to perform a...