5691 RCA Red Base Black Plates used 1948 (2.2/2.4ma) (Gm=62% and 75%)
$ 49.99
5691 RCA Red Base Black Plates used 1948 in white box
1 section) 2.2ma Gm=1000 (62%)
1 section) 2.4ma Gm=1200 (75%)
Tested on Amplitrex
Good Ma = 2-3ma
NOS Gm = 1500-1600
for:
- Ampeg Heritage B-15
- Alessandro Itallian Greyhound jazz amp
- Alessandro Black and Tan 2005
- Almarro A318B
- Eddie Current
See more: vacuum tube
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 (Gm=62% and 75%) "Pin It")