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(!!!!) (Best Value Pair #1) 6B4G Raytheon NOS 1940's separate plates in white boxes (89ma and 92ma)
(!!!!) (Best Value Pair) 6B4G Raytheon NOS 1940's separate plates, 1 branded Philco (90ma and 91.5ma)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (82ma and 83ma)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (86ma and 92ma)
(!!!) (SINGLE) 6B4G Philco by Sylvania engraved base springs hold up filaments NOS 1930's (91ma) (rare)
(!!!) 6B4G Tungsol NOS 1940's (81ma)
6B4G Ken Rad branded RCA coated glass NOS 1946 (110ma)
6B4G Philco by Sylvania NOS 1947 (80ma)
6B4G Raytheon NOS 1950 era (94ma)
6B4G Sylvania branded RCA NOS 1940 era (100ma)
6B4G Sylvania rebranded Delco NOS separate plates 1952 (81ma)
6B4G Sylvania rebranded RCA used/good 1953 (77.5ma)
6B4G Zenith by Sylvania NOS plates connected 1940's (123ma)
