(!!!) (BEST PAIR) 6AS7GA Sylvania NOS 1960's (101/111ma and 100/120ma)
(!!!) (Best Single) EL60 Philips Holland metal base NOS 1958 in white box (91ma)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (11.2ma and 12.2ma)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (8.0ma and 8.4ma)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (8.8ma and 9.4ma) (same Gm)
(!!) (1 Pair) 6SH7GT Tungsol 1940's rebranded Raytheon NOS 1970 (10.0ma and 10.8ma)
(!!) (BEST SINGLE) 6AS7GA Sylvania metal base NOS 1960's (103/106ma)
(!!) (BEST SINGLE) 6AS7GA Sylvania metal base NOS 1960's (107/111ma)
(!!) (BEST SINGLE) 6AS7GA Sylvania metal base NOS 1960's (84/90ma)
(!!) (Pair) 6SH7GT Tungsol 1940's rebranded Raytheon NOS 1970 (9.4ma and 9.0ma)
(!) (Best Single) F2a Siemens NOS 1960's (112ma) Tested on Amplitrex (pairs sold out)
6AS7GA Sylvania metal base NOS 1960's (77/87ma)
6SH7GT Ken Rad 1950's rebranded Raytheon 1970 NOS (12.4ma)
6SH7GT Raytheon NOS 1940's (9.5ma)
6SH7GT Tungsol 1940's NOS rebranded Raytheon 1970 (13.2ma)
6SH7GT Tungsol 1940's rebranded Raytheon 1970 NOS (13.2ma)
Deforest Audion metal base display tube 1920's (single)
EL34 Holland brown base used/good faded top getter 1961 (78ma)
EL60 Philips Miniwatt Holland metal base NOS 1955 (67ma)