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45 triode tubes

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National Union 45 triode - matched pair
National Union 45 triode - matched pair
Price: $97.00
National Union 45 triode - matched pair
The 1950s National Union 45 triode tubes in this precisely matched pair have ST bottles, black plates, and bottom dish getters. Both tubes test good and are matched for both current draw (23.6 mA & 25.4 mA) and transconductance (85% Gm & 89% Gm).
RCA 45 triode - various labels, matched pair
RCA 45 triode - various labels, matched pair
Price: $97.00
RCA 45 triode - various labels, matched pair
The 1950s RCA 45 triode tubes in this precisely matched pair have short ST bottles and bottom getters. They are labeled for Hytron and Westinghouse. Both tubes test good and are matched for current draw (26.8 & 27.7 mA) and transconductance (91% & 92% Gm)
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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