RCA / 7B4/RCA

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£6.00

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One of the most famous American Valve manufactures of all time. RCA was responsible for designing and manufacturing many important valves such is the 6V6GT, 6L6GC, 7027a and the super EL84 known as 7189. RCA also pioneered many advances in manufacture such as the black plate coating and had a hand in helping GEC make the famous KT66.
7B4 is a high mu triode with a 7 volt heater rating. This valve was mainly used in car receivers.

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