(!!!) (Best Sylvania Pair) 6Y6GA Sylvania NOS "D" getters same build (64ma and 65ma)
(!!) (2nd Best RCA Pair) 6Y6GA RCA clear top black plate 1971-1973 (72.5ma and 70ma)
(!!) (Best RCA Pair) 6Y6GA RCA clear top black plate 1965 (67.5ma and 68ma)
(!!) (Recommended Pair) 6Y6GA Sylvania NOS same build (56.6ma and 57ma)
(!!) (Single) 6Y6G Tungsol NOS 1954 (74ma)
(!!) (Single) JAN-CKR-6Y6G Ken Rad NOS 1944 (56ma)
(!!) (Single) JAN-CKR-6Y6G Ken Rad NOS 1944 (75ma)
(!) 6Y6G=VT-168A Raytheon coated glass NOS 1944 (60ma)
6Y6G Arcturus by Tungsol coated glass used/good/70% 1940's (43ma) tested on amplitrex
6Y6G GE 1943 used/good black plate, double filaments, crack in base (56ma) tested on amplitrex
6Y6G GE used/good/75% 1958 (46ma) tested on amplitrex (high Gm)
6Y6G National Union coated glass used/good/75% 1952 (46ma) tested on amplitrex
6Y6G RCA clear glass gray plate NOS 1959 (52ma)
6Y6G Sylvania rebranded Raytheon coated glass used 1953 (45ma) tested on amplitrex
6Y6G Westinghouse coated glass NOS 1940's (50ma) (tested on amplitrex)
6Y6GT GE NOS 1960's (85ma)
6Y6GT RCA NOS 1964 (66ma)
JAN-CRC-6Y6G=VT-168A RCA coated glass used/good/70% early 1940's (42.5ma) tested on amplitrex
