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National Union 56 triode - matched pair

National Union 56 triode - matched pair
Price: $49.00
2 matched pair in stock
Item Number: 1072
Manufacturer: National Union
The 1950s National Union 56 triode tubes in this precisely matched pair have black plates and bottom getters with lots of flashing. (One tube has a cosmetic blemish in the flashing at the base--does not affect tube performance.) The white labels on the base have the NU logo.
 
Both tubes test as new with low noise. They ship in new white boxes with test results for current draw (mA) and transconductance (Gm).
 
These tubes are sold as a matched pair. Photo is a sample pair from the lot.

Related Products

Sylvania 56 triode - matched pair
Sylvania 56 triode - matched pair
Price: From $29.00 to $57.00
Sylvania 56 triode - matched pair
The Sylvania 56 tubes in this matched pair are vintage 5-pin triodes. They have black plates and bottom getters. Their black bases have green print with the early Sylvania leaf logo. Both tubes test as new and are precisely matched.
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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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