Eighty years ago, Popular Science, June 1935, carried the plans for this complete 80 meter CW station. It could be used permanently in the shack, or as a portable station. The entire station weighed in at about 35 pounds, and could be transported relatively easily. The front panel measured just 18 by 12 inches.

The top third is the transmitter, which uses a type 47 tube as crystal oscillator, and two type 46 tubes as the final amplifier, putting out about 30 watts.

The receiver used one type 58 tube as an untuned RF amplifier, with a type 57 tube as regenerative detector. A type 2A5 was used as an audio amplifier.

The bottom section contained the 110 volt power supply, with a transformer supplying 450 volts either side of the center tap. This was rectified by a 5Z3 tube, with several capacitors and chokes doing the filtering. The article noted that where commercial power was not available, the set could be adapted to a vibrator power supply to run off six volts.

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