12AU6
The 12AU6 (European equivalent HF94) is a miniature RF pentode for up to ~50 MHz, with a miniature B7G 7-pin base. Apart from the 12 V heaters, it is the same as the 6AU6 (EF94).
![](http://w140.com/tekwiki/images/thumb/b/b0/Telefunken_12au6.jpg/350px-Telefunken_12au6.jpg)
Tek part number:
- 154-0040-00 (single tube)
- 157-0050-00 (selected pair)
Used in
- Type 53/54C plugin
- ...