(!) (Best Single) 7N7 Sylvania NOS 1960 era (10.8/11.2ma)
7R7 Tungsol NOS 1947-1948 (52/38)
7F8 Sylvania used/good 1956 (34/25 and 39/25)
7A4=XXL Sylvania 1940's used/tests like new (85/50)
7Q7 GE NOS 1950's (4 in stock)
7H7 Zenith by Sylvania used/good 1940's (105/60)
7A8 Sylvania NOS 1948 (97/60)
7H7 Sylvania branded Tungsol NOS (3 in stock)
7X7 Sylvania branded RCA NOS slightly tilted glass (98/60)
7H7 Sylvania branded RCA NOS (3 in stock)
7H7 Sylvania / Philco NOS (4 in stock)
7H7 RCA used/good (98/60)