Home » 6F8G Sylvania Zenith parallel black ribbed plates used/good 1940's (9.0/8.4ma)

6F8G Sylvania Zenith parallel black ribbed plates used/good 1940's (9.0/8.4ma)

Name: 6F8G Sylvania Zenith parallel black ribbed plates used/good 1940's (9.0/8.4ma)
Brand: Tube World
SKU: 6F8Gnos
Price: 29.99 USD
Availability: InStock

By Tube World

$ 29.99

6F8G Sylvania Zenith parallel black ribbed plates used/good 1940's

1 section) 9.0ma Gm=2800

1 section) 8.4ma Gm=2600

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, RCA