This converter has coils according to the reception and converted frequency bands. We found it in the October 1989 Radio Electronics magazine in an article that teaches its construction.
I found this circuit in an English magazine from July 1982. The circuit is still viable because all...
Suggested by General Electric in 1966 documentation, this circuit uses unusual components today....
This circuit was obtained in the 1990 Motorola Linear Databook. The circuit uses a 139 series...