The signals from this circuit obtained from the 1965 Radio Shack documentation are picked up from a medium wave receiver. L1 and L2 have 80 to 100 turns of yarn 28 on a ferrite rod.
This circuit was found in an American documentation for radio amateurs of the 80's. The...
This circuit was obtained from the September 1971 issue of Radio Electronics magazine. The power...
The signals from this circuit obtained from the 1965 Radio Shack documentation are picked up from...