US:
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the world's first pocket radio — five subminiature tubes, superhet circuit |
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a crystal radio, maybe the first truly pocket-size radio |
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reflex circuit, two subminiature tubes |
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the first large-production �pocket� radio? Four subminiature tubes superhet |
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October '54, the world's first commercially-produced transistor radio |
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February 1955, a close second to the Regency TR-1 |
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the first Bulova was a Regency TR-1 |
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subminiature tube/transistor hybrid |
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subminiature tube/transistor hybrid |
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first GE transistor radio |
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mini tube / subminiature tube small portable radio |
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produced in late 1955, may have continued into 1956 |
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produced in late 1955, may have continued into 1956 |
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first RCA transistor radio (possibly second, after the 7-BT-10K) |
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second RCA transistor radio (possibly first) |
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first Zenith transistor radio, (first Zenith 500, chassis 7XT40 series) |
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subminiature tube/transistor hybrid |
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first Emerson pocket transistor radio |
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first Motorola transistor radio |
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first Philco transistor radio |
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first Westinghouse transistor radio |
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same chassis and cabinet as the H-58XP7 series |
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first Arvin Silvertone, I think |
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second Philco transistor radio |
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second Westinghouse transistor radio |
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7AT42Z1 chassis |
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chassis 7ZT40 series |
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first produced in 1957 -- a modified version was produced in 1958 |
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a one-transistor radio --one! |
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one of several "Trans-Portable" radios made by GM's Delco Radio Corp. |
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the original "no-name" 888 came out in 1957 |
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second US shirt pocket radio, after the 1954 Regency TR-1 and its variants |
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2-band, LW / MW |
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second version of first transistorized Zenith Trans-Oceanic |
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a big and bold design update to the c.1957 Admiral 7M12 |
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a snazzier version of the '57 Bulova 620 "Comet" |
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one of several "Trans-Portable" radios made by GM's Delco Radio Corp. |
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one of several "Trans-Portable" radios made by GM's Delco Radio Corp. |
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