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(!!) (Single) JAN-CKR-6Y6G Ken Rad NOS 1944 (75ma)
(!!) (~ Recommended Pair ~) 6JD6 GE branded RCA NOS same date codes (13ma and 14ma)
(!!) 45 RCA 1940's used/good (22.6ma) (strong Gm)
(!!) 6146B Sylvania branded RTC NOS 1960's (94ma)
(!!) 6336 Chatham by Tungsol metal plates used 1950's 1st series made (54ma/85ma)
(!!) 6AQ5A GE Johnson Electron tube NOS 1962 (42ma)
(!!) 6AQ5A RCA NOS 1964 (37ma)
(!!) 6AS7G Russian branded National NOS 1990's (50ma/86ma)
(!!) 6AS7G Russian branded National NOS 1990's (51ma/77ma)
(!!) 6BQ5 Sylvania gray plate NOS 1960's (63.5ma)
(!!) 6BQ5 Sylvania gray plate NOS 1970's (44ma)
(!!) 6JE6B GE low hours/tests like new 1968 (137ma)
(!!) 6K6GT Philco by National Union coated glass 1953 (46.5ma)
(!!) 6K6GT Philco by Sylvabia NOS 1950-1951 (49ma)
(!!) 6K6GT RCA black plate NOS 1951 (40.8ma)
(!!) 6KM6 GE NOS (138ma)
(!!) 6KM6 RCA black plate NOS (5 in stock)
(!!) 6KM6 Sylvania NOS (126ma)
(!!) 6V6GT Metro Holland NOS 1960's unknown maker (49ma)
(!!) 6V6GT Philco by Sylvania tests like new 1957 (42.2ma)