Found in old documentation, this receiver for the mid-wave range uses transistors from the era. In fact, modern general-purpose equivalents can be used.
This old amplifier, with germanium transistors, was found in a Japanese technical magazine in...
This is the well-known lightning lamp that was published in the March 1988 issue of Saber...
This VFO was found in a 1980s documentation. The central frequency is given by the crystal and the...