6X5GT RCA NOS 1955 (50/40 and 60/40)
6X5GT Sylvania chrome top used/good 1956 (47/40 and 50/40)
6X5GT Tungsol no printing used/good 1940's (55/40 and 68/40)
6X5GT US Brands used/good (10 in stock)
6X5GT US Brands used/good (2 for $12)
7027A RCA metal base gray plate NOS 1960 (74.2ma)
7587 RCA Kuhl-Tube cryo-treated NOS 1950's original boxes (8 in stock)
7587 RCA NOS 1950's original boxes (18 in stock)
7587 US Brands NOS (10 in stock)
7587 US Brands NOS (2 for $58)
7N7 Philco by Sylvania chrome top "parallel black plates" used/good 1949 (8.4/8.0ma)
7N7 Sylvania branded GE chrome top used/good 1956 (6.0/6.2ma)
7N7 Sylvania branded RCA chrome top used/good 1956 (6.6/8.4ma)
7N7 Sylvania chrome top branded GE low hours/tests like new 1957 (7.4/11.4ma)
7N7 Sylvania chrome top used/good 1956 (6.5/7.0ma)
816 RCA NOS 1954 (70/40)
ECC34 Mullard NOS 1950's (9ma/10ma)
EF11 RSD Germany NOS 1950's (6.1ma) (tested on Amplitrex)
EH90=6CS6 Valvo by Mullard UK NOS 1964-1965 (3 in stock)
EL156 Telefunken Germany NOS (sold out) (50 watt power pentode)
