(!!) (Single) 7199 Sylvania NOS 1960's (11.8ma pentode, 7.8ma triode)

7199 Sylvania NOS 1960's

(11.8ma) Gm=6200 (pentode section) strong

(7.8ma) Gm=2100 (triode section) good

 - Bogen BD-212

- Dynaco ST-70, SCA-35
- Ampeg B25, B25B
- Heathkit AA-111
- Stromberg Carlson
- Ampex Concerto 1961
- Scott LK 150