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 two-transistor amplifier can be used as power stage for intercom, experimental receivers,...
This sensitive circuit was found in old English documentation. Transistors may be modern...
This configuration, already presented in other points of this section and website, is of a...