(!!!!!) (#1 12AX7 Siemens Single) ECC83=12AX7 Siemens Halske NOS 1967 (Gm=2100/2100) (1.6/1.7ma) (Highest Ma and Gm)
(!!!!!) (#1 5687WB Sylvania Quad) 5687WB Sylvania black plates NOS 1980 (matched quad)
(!!!!!) (#1 ECC803S Telefunken Pair - Superb Pair) ECC803S=12AX7 Telefunken Germany <> bottom gold pins NOS same date codes 1969 1-2% matched (High Ma and Gm) (You can't buy a better pair)
(!!!!!) (#1 QUAD EL34 MULLARD XF3) EL34=6CA7 Mullard XF3 NOS stapled plates branded Philips 1973-1974 (79/80/80.5/80.5ma) 1-2% matched
(!!!!!) (#2 6L6GC RCA Black Plate Pair) 6L6GC RCA black plate NOS 1960's (73.4ma and 73.6ma) (highly recommended)
(!!!!!) (BEST HOLLAND QUAD) 12AX7=ECC83 Philips Holland NOS 1971 (1.4/1.5ma and 1.4/1.5ma x 4 tubes) (1-2% matched) (High Ma and Gm)
(!!!!!) (Best Pair) 838 United Electronics NOS 1940's in white boxes, 1 tube is slightly taller
(!!!!!) (BEST QUAD - BEST SOUND) 807=ATS25 GEC England ceramic base NOS 1940's (67/67/69/69ma) (recommended for Tron, VTL)
(!!!!!) (~ Best GE Pair in stock ~) 211 GE NOS 1940's (116ma and 116.5ma) (P1A)
(!!!!!) (~ Best KT88 Gold Lion Single ~) KT88 Genalex Gold Lion England NOS circa 1960 in original box (155ma)
(!!!!!) (~ Best Sound Telefunken Quad ~) 12AU7=ECC82 Telefunken Germany <> bottom smooth plates NOS "Tektronix Checked" 1960's 1-3% matched (ultra-low noise quad)
(!!!!!) (~ BEST SOUND ~) 10 RCA Cunningham Balloon engraved base NOS 1920's tube was factory sealed before removed for testing (25ma Gm=1900) (FREE SHIPPING)
(!!!!!) (~ Best Sounding Mullard Pair ~) CV4003=M8136=12AU7 Mullard Whyteleafe plant UK NOS copper grid posts large "O" getter halo 1962 (1st series) 1-3% matched
(!!!!!) (~ Recommended ~) 12AX7=CV4004 BRIMAR BVA England NOS narrow ribbed plates NOS 1960's (1.2/1.4ma)
(!!!!!) KT88 GEC UK used/very strong 1960's (137ma)
(!!!!) (#1 10 Hytron Pair) VT-25=10 Hytron USA NOS 1940's (23ma and 24.4ma)
(!!!!) (#1 10 Hytron Pair) VT-25=10 Hytron USA NOS 1940's (25.0ma and 25.2ma)
(!!!!) (#1 10 PAIR) 10=VT-25 SYLVANIA branded GE NOS 1940's (24.0ma and 25.6ma)
(!!!!) (#1 101D Pair) 101D Western Electric Tennis Ball 1920's test like new (7.8ma and 8.4ma)
(!!!!) (#1 12AX7 Holland Pair) 12AX7=ECC83 Philips Holland NOS 1970-1972 (1.2/1.3ma and 1.2/1.4ma) (1-2% matched) (High Ma and Gm)
