1956 Westinghouse H-587P7 / H-587P7A
Micro-table / coat pocket radio, thermoplastic cabinet
6 1/16 x 3 1/8 x 1 9/16 inches / 154 x 79 x 40 mm
Seven transistors: 2N94 (Sylvania), 2 x 2N185, 2N238, 2N252 (Texas Instruments), 2N253, 2N254
One tubular 9-volt battery
Made by Westinghouse Electric Corp., Metuchen, New Jersey
Westinghouse's first transistor radio (shown here is the P7A version), making use of transistors from Sylvania and Texas Instruments at the least -- most of the transistors are hidden beneath the speaker and a copper plate bracing it, both of which are soldered to the pc board, and I'm not going to unsolder them. Radio restorer Karl Schultz, who sold me this radio, was thoughtful enough to include with it a full page of notes on the set and the repairs he had done to make it work again, as well as a schematic diagram of the set. Unlike me, he had no issues with unsoldering the speaker and copper plate to get to the circuit!
Westinghouse radios indicated their transistor count in the numeral following the "P" in the model number: this is an H587P7A. As with Philco and Raytheon, Westinghouse's first transistor radio employed more transistors in its circuit than its second model. And as with other Westinghouse sets, each cabinet color got its own model number: H-587P7A for gray, H-588P7A for black, and H-589P7A for red. For some reason, this same radio model also appeared under the model series H-617P7 / H-618P7 / H-619P7 . Both model series have the same circuit, same transistor types.
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