Fifty years ago this month, the May-June 1969 issue of Elementary Electronics showed how to put together this two-tube receiver. The set covered 1.7-30 MHz with plug-in coils. And despite having only two tubes, it had excellent performance thanks to its design, which combined a superheterodyne and regenerative receiver.

The set used two dual tubes. A 6CQ8 served as mixer and IF amplifier, with a 12AT7 serving as regenerative detector and audio amplifier. The power supply consisted of transformer and solid-state diode.