(!!!!) (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 #2) 6F8G Sylvania and Sylvania Zenith parallel black ribbed plates like new 1940's (8.2/7.8ma and 8.0/7.0ma) 1-3% matched (very close Gm)
(!!!) (SINGLE) 6F8G National Union parallel dark gray plates 1950 era (11.2ma and 12.8ma)
(!!!) (SINGLE) 6F8G Sylvania parallel black plates like new 1940's (10.8ma and 9.2ma)
(!!!) (Single) 6F8G Tungsol parallel ribbed plates used/good 1940's (7.6/6.7ma)
(!!) (Single) 6F8G Ken Rad staggered ribbed black plates like new 1940's (10/11ma)
(!!) (Single) 6F8G National Union parallel plates like new 1950 (9.4ma and 8.0ma)
6F8G RCA gray ribbed staggered plates NOS no printing 1950's (7ma/8ma)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (8.2/9.6ma)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (9.0/7.2ma)
6F8G Sylvania Zenith coated glass parallel plates like new 1940's (9.0/8.4ma)
6F8G Tungsol round black plates used/good 1940's (6.0ma and 6.4ma)
6F8G Tungsol round black plates used/very good 1940's (9.4ma and 7.8ma)
