Home » 6F8G Tungsol round black plates used/very good 1940's (9.4ma and 7.8ma)

6F8G Tungsol round black plates used/very good 1940's (9.4ma and 7.8ma)

Name: 6F8G Tungsol round black plates used/very good 1940's (9.4ma and 7.8ma)
Brand: Tube World
SKU: 6F8G
Price: 39.99 USD
Availability: InStock

$ 39.99

6F8G Tungsol round black plates used/very good 1940's

1 section) 9.4ma Gm=2600

1 section) 7.8ma Gm=2400

sames internals as VT-231 Tungsol from 1945 era

Tested on Amplitrex

Vplate=250V

Vgrid=-8V

Good Iplate = 7-10

Good Ma = 2400-2600

NOTES:

6F8G = (2) 6J5G inside 1 bulb

1 section has top cap for grid

1 section has internal grid connection

GE, Sylvania and Raytheon have mirror image parallel black plates

RCA and Ken Rad have staggered black ribbed plates

See more: vacuum tube

Tags: 6F8, 6F8G, all, CBS, GE, preamp tubes, RCA

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