1 slightly microphonic tube) JHS-12AT7 Sylvania black plate "D" getter 1953

1% section balance

1 section) 11.2ma Gm=5800

1 section) 11.2ma Gm=5900

 

Good Ma range 8-10ma

Good Gm range 5000-5500

Tested on Amplitrex 

 

Recommended for

- CJ PV10A
- VTL
- Manley audio gear
- Manley Reference Cardioid mic
- Atma-Spere Preamplifier MP-1 Mk. III
- Lector CDP0.6T
- Berning
- Audio Experience Balanced A2
- mics
- Art Pro VLA II
- Monarchy SE250