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6F8G RCA black ribbed staggered plates NOS no printing 1950's (7.6ma/11ma)

6F8G RCA black ribbed staggered plates NOS no printing 1950's (7.6ma/11ma)

$ 29.99

6F8G RCA black ribbed staggered plates NOS no printing 1950's in white box

7.6ma Gm=2600

11ma Gm=3100

 

Good Ma range 7-9ma

Good Gm range 2400-2600

 

NOTES: 

GE, Sylvania and Raytheon have mirror image parallel black plates


RCA and Ken Rad have staggered black ribbed plates

 

6F8G dual triode = (2) 6J5G's triodes in 1 tube

See more: vacuum tube
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