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(!) (BEST PAIR) 20LF6 GE Zenith NOS 1978 same date codes (100/60 and 100/60)
(!) (BEST PAIR) 6663=6AL5 GE NOS 1963-1964 (47-47/40 and 47-48/40)
(!) (BEST PAIR) 6AL5 GE NOS 1960's (48-48/40 and 48-50/40)
(!) (BEST PAIR) 7B7 Sylvania branded GE NOS 1952 (100/60 and 98/60)
(!) (Best Pair) 7C7 Sylvania chrome tops NOS 1952 (93/60 and 95/60)
(!) (Best Single) 5726=6AL5W Raytheon NOS 1960's (50/40 and 50/40)
(!) (BEST SINGLE) 6CJ3=6DW4B Sylvania branded Philips tipped top NOS (88/60)
(!) (Best Single) 6DQ6B RCA NOS 1970's (120ma)
(!) (Best Single) 6GK5=6FQ5A Sylvania branded Raytheon NOS (15.2ma)
(!) (BEST SINGLE) 6HF5 Sylvania NOS 1970 era (117.5ma)
(!) (Best Single) 6LU8 GE Admiral NOS 1971 (3.4/64.5ma)
(!) (Best Single) 7N7 Sylvania NOS 1960 era (10.8/11.2ma)
(!) (Good Single) 7N7 Sylvania branded GE NOS 1961-1962 (7.5/8.3ma)
(!) (PAIR) 6AS6 RCA gray plate NOS 1962-1965 (5.5ma and 5.5ma)
(!) (PAIR) 6AS6 Sylvania branded RCA black plate NOS 1978 (4.8ma and 5.2ma)
(!) (Recommended Pair) 0B2 GE Holland made in Japan NOS 1970's (argon gas)
(!) (Recommended Pair) 0B2 GE Italy made in Japan NOS 1970's (argon gas)
(!) (Recommended Pair) 0B2 RCA NOS 1970 (neon gas)
(!) (Recommended Single) 6N7GT Raytheon coated glass NOS 1940's (3.2/3.5ma)
(!) (Single) 6L6WGB=5881 Sylvania black base NOS 1975 (78.5ma)