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(!!!!) (Best Pair #1) 6F8G Sylvania Philco parallel black ribbed plates like new 1940's (9.0/8.4ma and 9.0/8.6ma) 1-3% matched
(!!!!) (Best Pair #1) 6F8G Sylvania Philco parallel black ribbed plates like new 1940's (9.0/8.4ma and 9.0/8.6ma) 1-3% matched
$ 99.99
1 pair) 6F8G Sylvania Philco parallel black ribbed plates like new 1940's in white boxes
1 tube) 9.0/8.4ma Gm=2700/2600
1 tube) 9.0/8.6ma Gm=2800/2700
plate structure and internals are the same as VT-231 Sylvania
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
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 (Best Pair #1) 6F8G Sylvania Philco parallel black ribbed plates like new 1940's (9.0/8.4ma and 9.0/8.6ma) 1-3% matched&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_2f242b92-35a7-4b0a-85ab-f491b8c5c8e9.jpg?v=1730651929){kind=link}
 (Best Pair #1) 6F8G Sylvania Philco parallel black ribbed plates like new 1940's (9.0/8.4ma and 9.0/8.6ma) 1-3% matched "Pin It")