This 1960s Japanese receiver uses 6 germanium transistors, being powered by a 6 V voltage obtained from large batteries. The circuit is for the medium wave range of the superheterodyne type.
Found in a November 1977 Radio Electronics magazine, this digital circuit was described in an...
This powerful transmitter for the 27 MHz band was found in a Japanese publication from 1961. The...
This circuit was found in Radio Electronics magazine from April 1961. The device has a slot for...