(!!!!!) (3 in stock December) GZ34 Holland metal base 1950's
(!!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (9ma and 9ma) 1-2% matched
(!!!) (1 Pair) 6SH7GT National Union branded Raytheon NOS 1940's (9.5ma and 10ma)
(!!!) (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 (10ma and 10.6ma) (Same Gm)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (11.2ma and 11.3ma)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (12.0ma and 12.8ma) (close Gm)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (8.6ma and 9.0ma)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (8.8ma and 9.4ma) (same Gm)
(!!) (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)
(!!) (Read Review) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (11.2ma and 11.2ma) (close Gm)
(!) (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 NOS 1940's (10.4ma)
6SH7GT Raytheon NOS 1940's (9.5ma)
6SH7GT Tungsol 1940's NOS rebranded Raytheon 1970 (11.2ma)
Deforest Audion metal base display tube 1920's (single)