(!!!!) (Recommended Pair) 7199 RCA black plates NOS 1960's (12/6.6ma and 13.2/7.0ma)
$ 159.99
1 pair) 7199 RCA black plates NOS 1960's
1 tube)
12ma Gm=6500 (pentode section) good
6.6ma Gm=1750 (triode section) good
1 tube)
13.2ma Gm=7100 (pentode section) good
7.0ma Gm=1800 (triode section) good
Tested on Amplitrex:
Good Pentode Section 10-12ma Gm=6000-6500
Good Triode section 7-9ma Gm=1900-2100
- Bogen BD-212
- Dynaco ST-70, SCA-35
- Ampeg B25, B25B
- Heathkit AA-111
- Stromberg Carlson
- Ampex Concerto 1961
- Scott LK 150
See more: vacuum tube
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 (Recommended Pair) 7199 RCA black plates NOS 1960's (12/6.6ma and 13.2/7.0ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_1bff9da5-f0bd-40fe-8401-392ed2d65051.jpg?v=1730933412){kind=link}
 (Recommended Pair) 7199 RCA black plates NOS 1960's (12/6.6ma and 13.2/7.0ma) "Pin It")