Found in American documentation from the 1990s, this circuit uses coils with multiple outlets to get the best reception, the diode is a general-purpose crystal diode.
We found this circuit in a 1968 Hughes publication. The components are from the era and can be...
I found this circuit in an old English magazine from 1979, but it can be easily assembled with...
This circuit was found in the April 1971 Radio Electronics magazine. The transformer is the type...