1934 Two Tube Regenerative Shortwave Receiver

1934MaySWcraft

This handsome little two-tube shortwave receiver is described in the May 1934 issue of Short Wave Craft magazine. The circuit was designed by the National Radio Distributing Co., which presumably had all of the parts for sale, and used two type 30 tubes. A 45-volt B battery was sufficient for normal reception, but to pull in the weak signals, it was recommended to use 90 volts for the amplifier stage. In addition to the tuning dial, two other controls were visible on the front panel. One was a variable capacitor for adjusting regeneration, and the other was a rheostat for setting the filament voltage.

A well-insulated antenna of 45-100 feet was recommended.

1934MaySWcraftSchematic