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(!!!) 6V6G Crosley Ken Rad used/tests like new 1940's (49ma)
(!!!) 6V6G GE by Sylvania coated glass used/tests like new mid-1940's (44.6ma)
(!!!) 6V6G Ken Rad used/good 1940's (40.5ma)
(!!!) 6V6G Super Silvertone by Sylvania used/good 1930's (37ma)
(!!!) 6V6G Zenith Sylvania engraved base used/good 1930's (39ma)
(!!!) 6V6GT Sylvania green leaf NOS 1940's (60ma)
(!!!) 6V6GT Tungsol black plate coated glass used/good 1940's hairline crack in base (44ma)
(!!!) 7025 RCA ribbed gray plates used/good 1960's (Gm=1350/1450 and 0.7/0.8mA)
(!!!) 7025 RCA ribbed gray plates used/good 1960's (Gm=1350/1600 and 0.6./1.1mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/good 1960's faded printing (Gm=1400/1600 and 0.9/1.1mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/good 1972 (Gm=1450/1400 and 0.9/0.8mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/tests like new 1960's faded printing (Gm=1500/1500 and 1.1/0.9mA) (V1 guitar amp)
(!!) (Best Single) 5Y3GT Tungsol NOS 1956 (60/40 and 56/40)
(!!) (Best Single) 6SC7 GE NOS 1955 (2.2/2.1ma)
(!!) (BEST VALUE) 12AY7 GE NOS 1966 (2.3/1.9ma)
(!!) (Recommended Single) 6V6GT GE coated glass NOS 1954 (48ma)
(!!) (Recommended SIngle) 6V6GT Raytheon Silvertone black coated glass NOS 1940's (50.5ma)
(!!) (~ Recommended ~) VT-107A=JAN-CHS-6V6GT Sylvania black plate / gray coated glass NOS 1945 (35ma)
(!!) 12AX7 GE branded Video black plates D getter 1957 used mis-matched triode sections (1.1ma/0.6ma)
(!!) 6V6GT Metro Holland NOS 1960's unknown maker (49ma)