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(!!!!) (Best Pair) 807=ATS25 GEC England black oval plate ceramic base NOS 1940's glass chip inside each tube (79ma and 84ma) (same Gm)
(!!!!) (Best Value Pair) 807 RCA black plates NOS 1959-1970 same build in white boxes (66.5ma and 65.2ma) (Same Gm)
(!!!!) 807 RCA black plate ceramic base NOS 1940's with data sheet (72.5ma) (1st series made) (rare)
(!!!) (Good Value Single) 807=ATS25 GEC England ceramic base NOS 1940's (70.2ma)
(!!!) (Pair 1950's) 807 RCA black plate NOS 1956-1959 in white boxes (60.5ma and 61.2ma) (same Gm)
(!!!) (SINGLE) 807=ATS25 GEC England ceramic base NOS 1940's dark gray plate (59ma)
(!!) (Good Value Pair) 807=VT-100A RCA used/tests like new 1940's (71ma and 68.5ma)
(!) 807 GE Italy gray plate NOS 1967 same build as UK made (80ma)
807 Sylvania tests like new no printing 1940's (81ma)
