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Making Your Own Hardware, 1941

1941 Popular Science “Summer-Winter” Radio

1941 Popular Science “Summer-Winter” Radio

1935 Two Tube Portable. #RadioHistory

1935 Two Tube Portable.

The January 1916 issue of Popular Mechanics showed the portable radio transmitter-receiver. The set was designed to be strapped to the waist, and was believed to the designer, Dr H Barringer Cox, to be particularly suited for military use. The antenna and ground consisted of a wire of about 4 or 5 feet in length running to a 'canelike metal rod'. For military use, the wire could run down a trouser leg to metal spurs in a soldiers boots. The set had a range of c. 18 miles.

The January 1916 issue of Popular Mechanics showed the portable radio transmitter-receiver. The set was designed to be strapped to the waist, and was believed to the designer, Dr H Barringer Cox, to be particularly suited for military use. The antenna and ground consisted of a wire of about 4 or 5 feet in length running to a 'canelike metal rod'. For military use, the wire could run down a trouser leg to metal spurs in a soldiers boots. The set had a range of c. 18 miles.

1936:  Radio serviceman fixing other appliances.

Radio serviceman fixing other appliances.

National Radio School, later National Radio Institute, 1915 newspaper ad.

National Radio School, Forerunner of the “CONAR Twins”

Wartime B battery eliminator.

Wartime B Battery Eliminator

Minimalist 1939 one-tube radio.

One Tube, a Hot Chassis, and a “Curtain Burner”

How the brain works.

How the brain works.

A politically incorrect toy from 1920: Stuffed animals with glow-in-the-dark radioactive eyes to scare your kids at night.

A politically incorrect toy from Stuffed animals with glow-in-the-dark radioactive eyes to scare your kids at night.

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