12AT7 RCA Black Plates "D" getter used/good mid-1950's
By Tube World
$ 24.99
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1 low noise tube) 12AT7 RCA Black Plates "D" getter used/good mid-1950's
Amplitrex Test Data:
1 section) 9.6ma Gm=3700
1 section) 9.2ma Gm=4700
Good Ma range for used 7-9ma
Good Gm range for used 4000-5000
- Earmax Anniversary
- Lector
- Berning
See more: vacuum tube
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