We found the circuit of this Japanese transistorized commercial receiver in a documentation from the 1960s. It is a radio for the medium wave range with 6 transistors and 9 V power.
Figure bellow shows how n 4027 can be cascaded to form a divide-by-2. The maximum input frequency...
This medium wave commercial receiver from the 1960s was found in a Japanese publication at the...
This bistable and monostable Vox circuit was found in a 2002 documentation. The 556 is a double 555...