This small commercial radio for the MW band with germanium transistors was found in Japanese documentation from the 1960s. The circuit is powered by a 9 V battery and has a 455 kHz IF.
This simple teaching circuit uses 5 transistors in a monophonic organ version whose notes are...
We found this circuit in documentation from the 80s. The circuit is for cars with platinum. The...
This circuit for the medium wave range was published in Radio Electronics in February 1958. The...