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Tubes / semiconductors by category - Manufacturer

Selected: Harvey-Burnham; New York, NY

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Name	Maker	Year	User	Usage	Type	Base
12Z3	Common typ				Half-Wav	UX-Base	5	19	6	1	4		2	215
49	Common typ	1932		Power/Out	Double G	UY-Base	1	8	4	–	4		3	69

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2 tubes or semiconductors found.

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