(slightly microphonic single) E182CC=7119 Amperex USA NOS 1981 (32/44ma)
(sold out) EL50 Philips Miniwatt NOS 1958) (EL50 replaces 4654)
12AT7WA Raytheon black plates - triple mica - O getter halo 1960's mis-matched triode sections (7/12ma)
150C2=0A2 Mullard branded Philips NOS 1968 (argon)
5840=EF732 Raytheon NOS 1960's
5840W=EF732 Sylvania NOS 1970's (1 in stock)
6085=E80CC Tungsram Hungary NOS 1970's rebranded Hytron (5.5/5.8ma)
6112A GE NOS 1956 (.8ma/1.0ma) (tested on Amplitrex) (1 tube only)
6AQ5 and 6AQ5A US Brands used/good (20 in stock)
6C4WA Sylvania NOS 1965 and 1971 (read review)
6DA5=EM81 Matsushita Japan NOS 1960's (3 in stock)
6DL5=EL95 GE East Germany NOS 1960's (18.5ma)
6DL5=EL95 Siemens Germany NOS 1966 faded printing (31ma) highest mA and Gm
6DL5=EL95 Telefunken Germany <> bottom used/good 1964 (21ma)
6EJ7 GE NOS (7.3ma)
6EJ7 RCA by Siemens Germany NOS 1971 (10ma)
6EJ7 RCA by Siemens Germany NOS 1972 (12.4ma)
6EJ7 RCA East Germany NOS 1970's (13.5ma)
6EJ7 Sylvania NOS (10.2ma)
6EJ7 Sylvania NOS (9ma)