(!!!!) (Recommended Pair) 807 RCA black plate NOS and used/like new 1956-1957 same build large getters (61ma and 63.5ma)
(!!!!) (Recommended Pair) JAN-5691 Sylvania black plates NOS 1979 (2.1/2.2mA and 2.0/2.2mA) 1-3% matched (Best 6SL7GT sub) (same internals as 5691 red base)
(!!!!) (Recommended Pair) JAN-6189W=12AU7WA Sylvania NOS 1973-1974 (9.2/9.6ma and 9.8/8.6ma)
(!!!!) (Recommended Single) JAN-7308 Raytheon NOS 1968 (10.4/15.2ma)
(!!!!) (Recommended Single) JAN-7308 Raytheon NOS 1968 (12.5/16.8ma)
(!!!) (Best Single 1963) JG-5751 GE double mica gray plates NOS 1963 (2.7/2.7ma) (1-2% section balance)
(!!!) (Best Single) 5751 Sylvania NOS 1970's (2.4/2.4ma) 1% section balance
(!!!) (Best Value) JAN-6X4WA Sylvania NOS 1972-1979 (1 in stock)
(!!!) (Recommended Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/1.9ma and 1.9/1.8ma) (same Gm)
(!!!) (Recommended Single 1963) JG-5751 GE double mica gray plates NOS 1963 (2.2/2.4ma)
(!!!) (Recommended Single) 5751 GE double mica gray plates NOS 1979 (2.4/2.5ma)
(!!!) (Recommended Single) JAN-5751 GE double mica gray plates NOS 1981-1982 (2.3/2.7ma)
(!!) (Good Value Single) JAN-5751 GE double mica gray plates NOS 1987 (2.9/3.1ma)
(!!) (Good Value) JAN-5751 GE double mica gray plates NOS 1987 (2.3/2.3ma) 1-2% section balance
(!!) (Recommended Pair) 5651WA Sylvania JAN 1980-1982 Diode Voltage Reference (1 pair)
(!!) (slightly microphonic pair) JAN-6SL7GT=VT-229 RCA NOS and like new 1940's (2.5/2.4ma and 2.4/2.6ma) 1-3% matched
(!!) 5751 GE 5 Star used/good 1970 (1.6/1.7ma)
(!!) 5751 Sylvania misbranded 12AX7WA NOS 1960's (1.9/1.9ma)
(!!) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA (1.8/2.0ma)
(!!) 5R4GYA GE brown base NOS 1972 (52/40 and 54/40)
