EL83 Tesla like new 1971 (64ma)

EL83 Tesla like new 1971 

64ma

Gm=12,550

tested on Amplitrex

Good Ma range 30-36ma

Good Gm range 9500-10,000

6CK6=EL83 Pentode (sub for Russian 6P15P-EV)

For:

- Decware EL83 amp 1999
- modified VOX AC30