6AK5
The 6AK5 (European equivalent EF95, Russian equivalent 6Ж1П) is an RF pentode with a miniature B7G 7-pin base.
The high-rel version is the 5654/E95F.
It is used in the vertical preamplifier of the 517.
- Heater: 6.3 V, 0.175 A, indirect
Tek part numbers: 157-063, 157-0063-00