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(!!!!) (Recommended Pair) 8417 Sylvania branded RCA NOS 1972-1973 (119.2ma and 123.7ma)
(!!!!) (Recommended Pair) ECC81=12AT7 Philips by Mullard NOS 1966-1970 (10/9.2ma and 9.3/8.6ma) (Close Gm matching) 1-5% matched
(!!!!) (Recommended Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (8.3/8.4ma and 8.4/7.8ma)
(!!!!) (Recommended Pair) JAN-5755 Raytheon Black Plates NOS 1971-1979 (1.5/1.7ma and 1.5/1.8ma)
(!!!!) (Recommended Pair) JAN-6922 Sylvania NOS 1977-1979 (14.6/21.4ma and 16.0/21.0ma) (smooth presentation)
(!!!!) (Recommended Pair) JAN-CRC-30 RCA NOS 1940's same build (2.9ma and 3.0ma)
(!!!!) (Recommended Single 1954) GL-6201=12AT7WA GE "5 STAR" black plates triple mica D getter 1954 tests like new (8.2/8.4ma)
(!!!!) (Recommended Single 1959) 12AU7 Mullard Heath UK long plates "O" getter used/good 1959 (8.8/9.0ma)
(!!!!) (Recommended Single) 12AT7WA Mullard NOS wide ribbed plates like CV4024 Mullard 1978 (7.0/7.8ma)
(!!!!) (Recommended Single) 12AX7 RCA Motorola black plates "D" getter tests like new 1953 (1.1/1.3ma and Gm=1600/1700)
(!!!!) (Recommended Single) 2A3 RCA gray plates NOS 1972 (119ma)
(!!!!) (Recommended Single) 6350 GE NOS 1960's (11.2/13.2ma)
(!!!!) (Recommended Single) 6550C Svetlana Russian low hours/like new 1999 (149ma)
(!!!!) (Recommended Single) 6DJ8 Philips Miniwatt Holland NOS 1960 era large "O" getter halo (18.0/19.4ma)
(!!!!) (Recommended Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.6/10.8mA)
(!!!!) (Recommended Single) E188CC=7308 Telefunken <> bottom gold pins used/good 1969 era (13.2ma/14.8ma) (rare)
(!!!!) (Recommended Single) EC92 Valvo Germany by Siemens NOS 1972 (12.5ma)
(!!!!) (Recommended Single) JG-6072 GE black plates triple mica "U" getter halo like new 1950's (2.5/3.1ma) (recommended for guitar amp or mic preamp)
(!!!!) (Recommended Single) PCC88=7DJ8 Mullard Holland NOS 1973 (11.5/13.8ma)
(!!!!) (Set of 10) 5842Q Raytheon NOS 1983 (10 tubes for $279.99) (all test between 19ma-24ma
