(!!!!) (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)
(!!!) (BEST SINGLE) JAN-CRP-6F8G=VT-99 Raytheon parallel black plates 1944 (8ma and 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)
