5V4G Brimar UK "D" getter halo black plates used/good 1950's (59/40 and 60/40)
5Z3G RCA used/good 1956 (46/40 and 48/40)
6626=0B2WA CBS NOS "D" getter 1950's (argon)
6AN8A RCA gray plates used/tests like new 1960's (16.6/12.4ma)
6BL7GTA RCA coin-base NOS 1970's (31/32ma)
6BX7GT CBS NOS 1959 (53ma/73ma)
6D4 CBS NOS 1959 (6 in stock)
6D4 Chatham by RCA NOS 1956 (3 in stock)
6D4 Sylvania NOS 1967 (10 in stock)
6D4 Sylvania NOS 1974 (6 in stock)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (8.2/9.6ma)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (9.0/7.2ma)
6F8G Sylvania Zenith parallel black ribbed plates used/good 1940's (9.0/8.4ma)
6SN7GTA CBS NOS Black Ribbed Plates similar to RCA early 1950's (8.3/8.6ma)
6SN7GTB CBS black base black plates side-getter, the same shape as Sylvania 6SN7GTB used/good 1961 (7.5/8.0ma)
6V6GT GE coin-base NOS 1985 (40.6ma)
6V6GT Hytron black plate like new smeared printing 1947 (44ma)
6V6GT MWT Italy coated glass NOS 1940's (42ma)
6V6GT RCA BROWN BASE - gray coated glass - used 1951 (35ma)
6W4GT CBS NOS 1950's (4 in stock)