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 circuit is from the 1977 RCA Linear Integrated Circuits Manual. The circuit has a...
The sensor in this circuit is a BA315 diode. Other diodes can be experimented, but this is one...
This circuit was found in Maxim's documentation from the 90's. The circuit provides 12 V x 120 mA....