Monthly Archives: April 2015

Marianne Brown, 2AOA, Radio Pioneer

MarianneBrown1920

Here, in the April, 1920, issue of Radio Amateur News, we see the station of Miss Marianne C. Brown of of 206 W. 86th Street, New York City, which is the corner of 86th and Broadway.

Her receiver, designed by herself, was able to tune 300-1200 meters, which took in nearly all of the commercial stations. She also reported that it was very satisfactory for reception of wireless telephone stations and arc stations. It was usable either with an indoor loop or an outdoor antenna.

Still under construction was her transmitter, consisting of a 1/2 KW transformer and oil condenser. She expected to have the transmitter in working order in a short time.

She was listed in the 1920 call book as 2AOA.  Another short biography of this wireless pioneer can be found at this link.  She held a commercial license and trained as a marine operator, but theNavy had a policy forbidding women serving in this position.  She did get a position with the Marconi company testing equipment.

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1940 Homemade Phonograph

1940PMPhono The woman shown here is no doubt admiring the technical skill of the gentleman, who constructed this handsome phonograph into the bookcase. But he has a little secret. He got the idea from the April, 1940, issue of Popular Mechanics, which reveals that no technical expertise whatsoever is required. The turntable came complete with tone arm, and simply needed to be plugged in to the amplifier, which came complete with controls pre-wired. Rounding out the installation was the 12-inch speaker.

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