(!!!!) (Best Pair) 807=ATS25 GEC England black oval plate ceramic base NOS 1940's inspected in 1953 (80ma and 84ma) (1st version of ATS25)
(!!!!) (Pair 1940's) 807 RCA black plate NOS 1940's same build (73ma and 79ma)
(!!!) (2nd Best Pair) 807=ATS25 GEC England ceramic base NOS 1940's (71.5ma and 73.8ma) 1-5% matched (recommended for Tron, VTL)
(!!!) (Good Value Pair) 807=ATS25 GEC England ceramic base NOS 1940's (70.5ma and 71ma) 1-3% matched (recommended for Tron, VTL)
(!!!) (Good Value Single) 807=ATS25 GEC England ceramic base NOS 1940's (70.2ma)
(!!!) (SINGLE) 807=ATS25 GEC England ceramic base NOS 1940's dark gray plate (59ma)
(!!!) (SINGLE) 807=ATS25 GEC England ceramic base NOS 1940's dark gray plate (64.5ma)