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Preamp tubes

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(!!) (Good Value Pair) 272A Western Electric

(!!) (Good Value Pair) 272A Western Electric "meshplate" NOS and used/good 1952-1954 (5.2ma and 5.6ma)

$ 289.99
(!!) (Good Value Pair) 272A Western Electric

(!!) (Good Value Pair) 272A Western Electric "meshplate" used/good 1951 and 1956 (5.8ma and 5.9ma)

$ 219.99
(!!) (Good Value Pair) 311B WE used/good, faded getters 1960 and 1967 (28ma and 33ma)

(!!) (Good Value Pair) 311B WE used/good, faded getters 1960 and 1967 (28ma and 33ma)

$ 89.99
(!!) (Good Value Single) 12AU7 Amperex

(!!) (Good Value Single) 12AU7 Amperex "Hewlett Packard" Holland "o" getter halo used/good 1968 (8.2/8.4ma)

$ 39.99
(!!) (Good Value Single) ECC82=12AU7 Philips Holland used/good 1972 dimpled disc getter (8.4/8.8ma)

(!!) (Good Value Single) ECC82=12AU7 Philips Holland used/good 1972 dimpled disc getter (8.4/8.8ma)

$ 39.99
(!!) (Good Value Single) 5687 Tungsol Hewlett Packard bronze plates

(!!) (Good Value Single) 5687 Tungsol Hewlett Packard bronze plates "O" getter like new 1960 (32.5/33.7ma)

$ 59.99
(!!) (Good Value Single) 6201=12AT7 Valvo Germany rebranded Philips SQ 1970 (6.8/7.8mA)

(!!) (Good Value Single) 6201=12AT7 Valvo Germany rebranded Philips SQ 1970 (6.8/7.8mA)

$ 79.99
(!!) (Good Value Single) 6922 Amperex PQ Holland gold pins used/good 1961 (10/19ma) (mic)

(!!) (Good Value Single) 6922 Amperex PQ Holland gold pins used/good 1961 (10/19ma) (mic)

$ 69.99
(!!) (Good Value Single) 6DJ8 EI YUGO branded Siemens NOS 1979 (16.2/17.2ma)

(!!) (Good Value Single) 6DJ8 EI YUGO branded Siemens NOS 1979 (16.2/17.2ma)

$ 39.99
(!!) (Good Value) 12AT7 Telefunken Diamond Bottom used/good early 1960's (7.8ma/10.8ma)

(!!) (Good Value) 12AT7 Telefunken Diamond Bottom used/good early 1960's (7.8ma/10.8ma)

$ 49.99
(!!) (Good Value) 12AU7A RCA clear top used/good 1960's (8.8/9.0ma)

(!!) (Good Value) 12AU7A RCA clear top used/good 1960's (8.8/9.0ma)

$ 19.99
(!!) (Good Value) 12AX7 Siemens Halske Germany rebranded

(!!) (Good Value) 12AX7 Siemens Halske Germany rebranded "BOGEN" used/good 1960 (161 Series) (Gm=1400/1500 and 0.8/0.9ma)

$ 79.99
(!!) (Recommended 27 Balloon) C-327 Cunningham Balloon mesh-plate used/very good 1930's (5.2ma)

(!!) (Recommended 27 Balloon) C-327 Cunningham Balloon mesh-plate used/very good 1930's (5.2ma)

$ 27.99
(!!) (Recommended from 1950's) 12AT7WA Sylvania gray plates triple mica

(!!) (Recommended from 1950's) 12AT7WA Sylvania gray plates triple mica "D" getter halo tests like new 1950's (9.4/12.0ma)

$ 19.99
(!!) (Best Pair) 12BE6 Tungsol NOS 1960 era (2.3ma and 2.5ma)

(!!) (Best Pair) 12BE6 Tungsol NOS 1960 era (2.3ma and 2.5ma)

$ 23.99
(!!) (Recommended Pair) 272A Western Electric

(!!) (Recommended Pair) 272A Western Electric "meshplate" NOS and low hours/like new 1940's - 1951 (6.3ma and 6.4ma)

$ 349.99
(!!) (Recommended Pair) 6AG7Y RCA brown bottom NOS 1958-1964 (27.8ma and 28.8ma)

(!!) (Recommended Pair) 6AG7Y RCA brown bottom NOS 1958-1964 (27.8ma and 28.8ma)

$ 13.99
(!!) (Recommended Pair) 6AG7 RCA NOS 1960's same date codes (27.5ma and 29.2ma)

(!!) (Recommended Pair) 6AG7 RCA NOS 1960's same date codes (27.5ma and 29.2ma)

$ 13.99
(!!) (Recommended Pair) 6HA5=6HM5=EC900 Amperex Holland

(!!) (Recommended Pair) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (17ma and 18ma) (Highest mA and Gm)

$ 17.99
(!!) (Recommended Pair) 6J6A Tungsol NOS

(!!) (Recommended Pair) 6J6A Tungsol NOS "D" getter 1961 (7.5/8.8ma and 7.8/9.2ma)

$ 10.99
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