The June 1963 issue of QST carried the plans for this five-transistor transceiver for 6 meters. The author, David Light, K4IQU, reported a QSO of 15 miles between two of the units, in hilly terrain, presumably on two peaks within sight of each other. He also reported being heard 30 miles away (but not a two-way QSO) with a well equipped station with a beam at the other end.

As shown by the emblem on the set, the goal of the unit was for use in local emergencies.  But chances are, most of the use involved the secondary purpose, “having plenty of fun on 50 Mc.”

The superregenerative detector, the oscillator, and the RF amp were 2N1745 transistors.  Two stages of audio amplification were used for both transmitter and receiver, and used 2N43A transistors.  Power was supplied by a 9-volt battery.

For modern hams, the humble Baofeng handheld can be had for about $30, and almost certainly outperforms (on 2 meters and 70 cm) the humble little rig here.  So yes, if all you have is a Baofeng, there’s no reason why you can’t work another Baofeng 15 miles away, or a well equipped station 30 miles away.  There are much better radios, but if that’s what you got, there’s no reason why you can’t use it for having plenty of fun on 144 Mc.

The plans for this one-tube loop set appeared 85 years ago this month in the May, 1938, issue of Radio Craft. While the tuning range is not specified, it appears to be for the broadcast band, and the set was said to give the beginner many hours of enjoyment both putting it together and using it.

According to the magazine, the set was able to pull in signals inside a steel framed building, with enough volume to rattle the headphones.

While it was not primarily intended for use as an interference finder, the directional characteristics of the loop antenna made it well suited for that purpose.

The same issue of the magazine also showed how to make the one-tube all wave receiver shown at the right.  It also included instructions for adding an additional AF stage.

Eighty-five years ago, this young woman was preparing to have her voice amplified with this 30-watt amplifier. We don’t know whether she’s a ham modulating her transmitter to almost 100% modulation, or if she is going to address a crowd through the loudspeaker. The circuit shown here, from the May 1938 issue of Radio News, is suitable for either purpose.

The power output was provided by two 6L6 tubes, and the circuit’s main feature was automatic volume limiting, which would provide distortion-free audio, even at maximum power. This was important for modulating, since the FCC required that modulation be limited to 100%. And for PA work, this meant that the output would be not only loud, but also crystal clear.

Eighty-five years ago, this young woman was hospitalized. But she was in good spirits, thanks to the radio in her room. Despite her condition, she was able to listen to her favorite programs.

The notable thing about this photo is not the radio you can see, but what you can’t see. There is a wire headed toward the pillow, and under that pillow is a Hushatone crystal loudspeaker from the Brush Development Company of Cleveland, Ohio. It allowed her to listen without disturbing other patients. Wiring the speaker to the set was easy. It required tapping in on the primary side of the output transformer, and putting a switch in the radio to switch between the built-in speaker and the Hushatone. Volume could be controlled with the customary volume control on the set, or simply by shifting the position of your head in relation to the speaker.

While it is not visible in the picture, you can see what the Hushtone looked like at RadioMuseum.org.  The photo above appeared in the April-May 1938 issue of National Radio News.