5840=EF732 Raytheon NOS 1960's (4.7ma)
5840W=EF732 Sylvania NOS 1970's (5.2ma)
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 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)
6EJ7 Zaerix East German NOS 1970's (12ma) strong single
6FC7=ECC89 Mullard branded Philips NOS 1975 (sold out)
6J5GT Raytheon NOS 1940's small hairline crack in base (6.4ma)
6KV6A GE NOS (38.5ma)
7581 Tungsol brown base used/75% 1964 (52.5ma)
7581A GE branded RCA NOS 1974 (59.5ma)
