(!) (Recommended Single) 6GM8=ECC86 SIEMENS HOLLAND NOS 1970 (4.0/5.0ma)
(!) (Recommended Single) PCC88=7DJ8 Tesla NOS 1968 (12.5/15.5ma)
(!) (Recommended Single) PCC88=7DJ8 Tesla NOS 1968 (13.2/14.0ma)
(!) (SET OF 3) 6SK7 RCA used/good 1940's (7.5ma/7.8ma/7.8ma) (good value)
(!!!) (nice single) USN-6922=E88CC Amperex USA gold pins used/like new 1962 (16/12.8ma)
(!) (slightly microphonic) 5751 Sylvania rebranded RCA black plates triple mica "D" getter used/good 1950's (2.0ma/2.2ma)
(!) (slightly microphonic) 6SL7GT=VT-229 RCA round black plates like new 1942-1945 era (2.4/2.6ma)
(!) (slightly microphonic) JAN-CRC-6SL7GT RCA NOS black plates 1951 tilted glass (2.0/2.2ma)
(!) (Slightly microphonic) JG-5814A GE NOS triple mica "U" getter halo 1956 (10.2/10.4ma) 1-2% section balance (high Ma and Gm)
(!) (sold out) 8416 Amperex PQ USA NOS 1965-1967
(!) (USED PAIR 1950's) 6BA6 RCA black plates used/test like new 1950's (10.6ma and 10.8ma)
(!) (~ Best Pair ~) 12SA7 RCA NOS (4.6ma and 4.6ma) 1% matched
12.10.22 (!) (Best Pair) 12SA7 RCA NOS (4.8ma and 4.9ma)
(!) (~ Best Value Single ~) 6DJ8 EI YUGO NOS 1977 (13.2/13.6ma)
(!) (~ Best Value ~) JG-12AT7WA=6201 GE gray plates triple mica "U" getter low hours/like new 1958 (8.8/10.6ma)
(!) (~ Recommended Pair ~) 6HQ5 Sylvania branded Raytheon NOS 1970 era same build (13.2/14.6ma)
(!) (~ Recommended Pair ~) 6HQ5 Sylvania NOS 1970 era same build (12.5/13ma)
(!) 12AT7 East Germany branded "M" Mühlhausen NOS 1970's (8.4/9.0ma)
(!) 12AT7 RCA black plates NOS D getter halo 1950's, slightly microphonic (13/16.4ma) (high Ma and Gm)
(!) 12AT7=E81CC RTC Radio Technique France NOS 1971 (7.8/8.0ma)
