This 6-transistor radio was sold in Japan in the 1960s. The super-heterodyne circuit for the OM band was powered by ordinary batteries.
B12127E) This circuit was found in an English publication from 1992. An integrated circuit 4017...
This trigger produces an output pulse when zeroing the input signal. The circuit is from a...
In fact, this circuit found in a 1992 documentation does not have all this power. It consists of a...