6AS7
The 6AS7 (6AS7G) is a dual power triode with an octal base.
It is used as the output device in the regulated power supplies of several Tektronix instruments, including the 513.
Tek part number: 154-0020-00 (6AS7G)
Links
- 6AS7 / 6AS7G @ radiomuseum.org
- 6AS7G Datasheet (PDF)