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Mickey De Acoustics

1950's British U52 ,5U4G rectifier tubes. The tubes are getting very hard to find these days. Both tubes are tested on a TV-7 tester and read 52,54 and 54,56 . The minimum is 40 for 65%. These tubes are new.These tubes have rectangular getters . Tubes have Z/PA  code which is the Hammersmith factory . Made by G.E.C. Both have Black plates.

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