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Preamp tubes

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01Aˇ
 
(!) UV-201-A RCA used/good 1930 era - no printing or etching on base (2.3ma)

(!) UV-201-A RCA used/good 1930 era - no printing or etching on base (2.3ma)

$ 29.99
UX-201-A Radiotron used/good 1930 era (2.4ma Gm=550)

UX-201-A Radiotron used/good 1930 era (2.4ma Gm=550)

$ 24.99
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