12AU7
The 12AU7 (European: ECC82) is a twin medium-μ triode vacuum tube with a center-tapped filament for use in either 6.3 V / 300 mA or 12.6 V / 150 mA heater circuits.
![](http://w140.com/tekwiki/images/thumb/e/e4/Tube_12AU7A.jpg/350px-Tube_12AU7A.jpg)
It is likely the first tube manufactured with a B9A (Noval) miniature 9-pin base (from 1946).
The 5814 is a high-rel version with increased heater current.
Tek part number: 154-0041-00, 154-0287-00
Aged/Checked/Matched Pair Details | ||
---|---|---|
Used in | Tek Part# | S/N Range |
Type C Plug-in (V3203,V4203) | 157-0025-00 | All |
Type D Plug-in | 157-0049-00 | All |
Reference: