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(!!!!) (Recommended Pair) 8417 Sylvania branded RCA NOS 1972-1973 (119.2ma and 123.7ma)
(!!!!) (Recommended Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (8.3/8.4ma and 8.4/7.8ma)
(!!!!) (Recommended Pair) JAN-CRC-30 RCA NOS 1940's same build (2.9ma and 3.0ma)
(!!!!) (Recommended Single 1957) 12AU7A Zenith Sylvania D getter NOS 1957 (13.0/13.2ma)
(!!!!) (Recommended Single) 6350 GE NOS 1960's (11.2/13.2ma)
(!!!!) (Single 1958) 5751 Sylvania black plates triple mica D getter halo 1958 used/good (2.7/2.3ma)
(!!!!) (Single) 10 Sylvania "engraved base" 1930's NOS (29ma)
(!!!!) (Single) 12BH7A GE gray oval plates 1962 (6.6/9.6ma)
(!!!!) (Single) 12BH7A Sylvania gray oval plates "O" getter NOS 1960 era (10.4/7.6ma)
(!!!!) (Single) 12BH7A Sylvania Silvertone gray oval plates large "O" getter halo 1960 era NOS (11.5/10.6ma)
(!!!!) (Single) 6DJ8=ECC88 Sylvania JAN NOS 1975 (19/24.5ma)
(!!!!) (Single) 6V6GT Sylvania coated glass NOS 1956 (34.2ma)
(!!!!) (Single) GB-6922 Sylvania Gold Brand Gold Pins used/75% 1960's (8.0/8.4ma)
(!!!!) (Single) JAN-6189 Sylvania NOS 1968 (9.0/8.2ma)
(!!!!) (Single) JAN-6189W=12AU7 Philips by Sylvania NOS 1987 (8.2/8.8ma)
(!!!!) (Single) JAN-CHS-6SN7W Sylvania "SHORT BOTTLE" used/70-75% (6/5ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.2/9.8ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.8/10ma)
(!!!!) 56 Arcturus Blue Balloon engraved base tests like new 1930's (5.0ma)
(!!!) (#1 56 National Union Pair) 56 National Union rebranded Western Electronics NOS 1940's (5.0ma and 5.2ma)
