(Display Tube) KT66 GEC 1960's (WEAK TUBE: LOW Ma and LOW GM) - for display purposes only
(Display Tube) KT66 GEC 1971 purple gas - for display purposes only
10 Raytheon NOS 1940's (24ma)
10=VT-25 Sylvania branded Tungsol like new 1940's (26.2ma)
10=VT-25 Sylvania NOS 1940's (25ma)
5R4GYA GE branded Westinghouse NOS 1960's (50/40 and 53/40)
5R4GYA GE brown base NOS 1961 (50/40 and 52/40)
5R4GYA GE NOS 1959 (48/40 and 50/40)
6AR6 Raytheon black plate used/good 1952 (67ma)
EL34 GE Holland brown base used/55% 1961 (51ma)
EL34 Philips Miniwatt Holland brown base used/good double "D" getters 1959 (70ma)
EL34 Tesla 1970's used/75% (64ma)
EL34 Tesla like new 1980 4 vertical scrapes on base (92ma)
JAN-CAHG-6H6WGT Chatham like new 1956
JAN-CAHG-6H6WGT Chatham NOS 1959