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(!!!!) (BEST PAIR #2) 6C4WA GE JAN NOS 1980-1982 (8.4/8.4ma) 1% matched
(!!!!) (BEST PAIR #3) 6C4WA GE JAN NOS 1980-1981 (8.6/9.0ma) (Same Gm)
(!!!!) (BEST PAIR) 6C4WA GE JAN NOS 1973-1980 (8.4/8.2ma)
(!!!!) (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) 6C4WA Philips JAN by Sylvania NOS 1987 (7.4ma and 7.2ma)
(!!!!) (Best Value Pair) 6C4WA Philips JAN by Sylvania NOS 1987 (8.2ma and 7.6ma)
(!!!!) (Best Value Pair) 6C4WA Philips JAN by Sylvania NOS 1987 (8.8ma and 9.2ma) (same Gm)
(!!!!) 807 RCA black plate ceramic base NOS 1940's with data sheet (72.5ma) (1st series made) (rare)
(!!!) (Best Single) JAN-6C4WA Philips by Sylvania NOS 1987 (10.2ma)
(!!!) (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)
(!!!) (Single) JAN-6C4WA GE NOS 1972 (8.8ma)
(!!) (Good Value Pair) 807=VT-100A RCA used/tests like new 1940's (71ma and 68.5ma)
(BEST PRICE) 8156 GE NOS (4 tubes for $24.99)
12BY7A Motorola by Sylvania NOS 1960's (21ma)
6100=6C4WA GE 5 star triple mica NOS 1959-1960 (12.6ma) (Premium 6C4)
6C4WA Sylvania NOS 1965 and 1971 (read review)
6EA8 RCA NOS (1 in stock) (highest mA and Gm)
6EA8 Russian NOS branded Realistic Life-Time gold pins (1 in stock)
