6AC7 Sylvania NOS 1950's (11.5ma) (high ma)

6AC7 Sylvania NOS 1950's small amount of surface rust on can

11.5ma (high)

Gm=9500

Good Ma = 7-10ma

- Mr. Liang Audio 845-3
- Welbourne Laurel IIx SET (WE 300B)
- JAS Bravo 2.3 integrated amp