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(!!!) (Single) 5814A GE "5 STAR" with "O" getter halo 1960's (10.8/11.6ma)
(!!!) (Best Pair) 6AN8A RCA Motorola NOS 1973 (17.6/14.6ma and 16.5/15.6ma)
(!!!) (Good Value Pair) 6SN7GTB RCA ADT NOS 1959 (8.4/7.7ma and 8.8/6.7ma)
(!!!!) (Single) 12BH7 Tungsol branded Shield gray oval plates "U" getter halo NOS 1961 (11.8/16.5ma) (Highest mA and Gm)
112A Rayovac Balloon engraved base used/very good, internals like a UX-112A RCA (8.5ma)
11BM8 Raytheon Hitachi JAPAN NOS (0 in stock)
11BM8 RCA Hitachi JAPAN NOS (0 in stock)
11BM8 Sylvania Hitachi JAPAN NOS (0 in stock)
(!!!) (Recommended Pair) 6SN7GTB GE used/good 1957-1961 (8.2/7.8ma and 7.6/7.2ma) 1-5% matched
(!!!!!) (Best Sound for the Money Pair) JAN-12AT7WC Sylvania black plates NOS 1980 (7/8ma and 7.3/8.2ma)
(READ REVIEW) ECL82=6BM8 Pope and Valvo Holland 1960-1966 (2.1/36ma and 2.1/34ma)
(!!!) (Best Sylvania Pair) 12AZ7A Sylvania black plates NOS 1960's (14.2/14.6ma and 12.6/12.8ma)
(!!!!) (Pair) 12B4A GE NOS rebranded Raytheon and RCA 1960's (35ma and 37.5ma) (same Gm)
(!!) (SINGLE) 6SN7GTB Westinghouse Rad-Tel Tube Co. gray plates "O" getter halo NOS 1964 (8.4/7.4ma)
(!!) (Best Value Single) 7199 Sylvania branded GE NOS 1966 (10ma/8.6ma)
E83F=6689 Siemens Holland NOS 1963 (10.6ma)
(!!!!) (Recommended Pair) ECC81=12AT7 Philips by Mullard NOS 1966-1970 (10/9.2ma and 9.3/8.6ma) (Close Gm matching) 1-5% matched
(!!!!!) (Holland Single) 12AU7 Pope Holland NOS 1971 dimpled disc halo (12/13.4ma)
(READ REVIEW) 5BQ7A RCA black plates NOS 1964 (11.6/14.4ma)
5BQ7A GE Dumont gray plates "O" getter 1973 (12.8/8.2ma)