The network tube radio "Philco Transitone TP-20" ("Transitone TP-20") has been produced since 1939 by the company "Philco, Philadelphia Stg" in the USA.
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This is a superheterodyne on 5 types of radio tubes;
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7A8, 7B7, 7C6, 35A5 and kenotron 35Z3.
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Built-in loop antenna.
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Ranges 540-1580 kHz and 1500-2500 kHz.
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Ranges work by adding or subtracting the local oscillator frequency between the bands.
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When switching to the range of 1500 ... 2500 kHz, it was necessary to turn on the "Police" mode (on this range in those years in the USA police stations worked, as well as low-line television).
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IF 455 kHz.
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Rated output power 1 W.
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The range of reproducible sound frequencies is 90 ... 4000 Hz.
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Powered by 115 volts AC / DC.
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Dimensions of the model are 330x210x180 mm.
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The first releases of the radio were called "Transitone TP-20", then there was a mixed name "Philco Transitone TP-20".
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The price of the radio for the first year of release is $ 15.95.
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