6AK5
The 6AK5 (European equivalent EF95, Russian equivalent 6Ж1П) is an RF pentode with a miniature B7G 7-pin base.
![](http://w140.com/tekwiki/images/0/01/6ak5_base.gif)
The high-rel version is the 5654/E95F.
It is used in the vertical preamplifier of the 517, 53/54C, CA, G, K, L and Z.
- Heater: 6.3 V, 0.175 A, indirect
Tek part numbers:
- 5654: 157-063, 157-0063-00
- 6AK5: 154-0014-00
- 6AK5W: 154-0206-00 (5654)
- ?: 154-0084-00