(!!!!) (Recommended Pair) 6V6GT RCA black plate coated glass like new 1940's and NOS 1954 (49ma and 46ma)
(!!!!) (Recommended Pair) JAN-CRC-30 RCA NOS 1940's same build (2.9ma and 3.0ma)
(!!!) (Recommended Pair) 30 RCA Cunningham engraved base 1930's low hours/test like new (3.3ma and 3.4ma)
(!!!) (Recommended Single) ER-230=30 Raytheon 1930's used/like new (4.1ma and Gm=800)
(!!) (Best Value Pair) 30 Sylvania NOS branded DELCO NOS 1947 (3.3ma and 2.8ma)
(!) 80 Delco by Sylvania ST-shape used/tests like new 1947 rattle inside base (57/40 and 60/40)
3V4 Tungsol NOS 1960 era (101/60)
3V4 Tungsol NOS 1960 era (99/60)
6V6GT GE Delco used/good crack in base 1952 (36ma)
76 Aristocrat by Sylvania 1940's used/good (3.8ma)
76 Delco by RCA 1940's used/good (4.1ma)
7Q7 Delco by Sylvania used/good 1950's (90/57)
7Q7 Tungsol by Sylvania used/good 1950's (95/57)
