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.
Found in a Popular Electronics of the 90s this configuration can be seen elsewhere on our site....
This very high input impedance JFET circuit was found in the 1995 Encyclopedia of Electronic...
This amplifier for automotive use is from the Philips Databook of 1990. The integrated circuit must...