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45 triode tubes

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Sylvania 45 triode - matched pair
Sylvania 45 triode - matched pair
Price: $174.00
Sylvania 45 triode - matched pair
The 1950s Sylvania 45 triode tubes in this precisely matched pair have ST bottles and bottom dish getters with lots of flashing. Both tubes test as new. They are matched for both current draw (37.0 mA & 39.8 mA) and transconductance (104% Gm & 110%).
Sylvania 45 triode - matched pair 2
Sylvania 45 triode - matched pair, various labels
Price: $97.00
Sylvania 45 triode - matched pair, various labels
The 1950s Sylvania 45 triode tubes in this precisely matched pair have ST bottles and bottom dish getters with lots of flashing. Both tubes test good. They are matched for both current draw (26.3 & 27.0 mA) and transconductance (85% & 95% Gm).
Raytheon 6B4G - matched pair
Raytheon 6B4G - matched pair
Price: $97.00
Raytheon 6B4G - matched pair
The 1940s Raytheon 6B4G triode tubes in this precisely matched pair have ST bottles, black plates, and bottom D getters with lots of flashing. Click "more info" for test results.
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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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