(!!) (Recommended Single) 6L6WGB=5881 Sylvania branded GE NOS (65ma)
(!!) (single) 10=VT-25 SYLVANIA used/tests like new 1940's (26ma)
(!!) (single) 10Y=VT-25 SYLVANIA used/good 1940's (25.8ma)
(!!) (SINGLE) 5R4GY RCA brown base used/tests like new 1949 (50/40 and 51/40)
(!!) 5R4GYA GE brown base NOS 1972 (52/40 and 54/40)
(!!) 5R4GYA GE Hewlett Packard brown base "D" getter halo NOS 1959 (51/40 and 52/40)
(!!) JAN-6V6GTY GE NOS brown base gray plate 1969 (43ma)
(!!) JAN-6V6GTY Sylvania NOS 1972 (41ma)
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS 1956 (62/40 and 62/40) small rattle inside base
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS 1956 (63/40 and 63/40) small rattle inside base
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS 1956 (64/40 and 64/40) small rattle inside base
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS around 1955 (61/40 and 62/40) very small rattle inside base
(!) (BEST VALUE PAIR) 5R4GA GE Amperex NOS 1976 - vertical scratches on bases (50-53/40 and 50-50/40)
(!) (BEST VALUE SINGLE) 5R4GYA GE like new 1958 a few scratches on base (51/40 and 54/40)
(!) (BEST VALUE) EL34 Philips Holland brown base used/good 1960 era (95.5ma)
(!) (SINGLE) JAN-CLRV-6SN7WGTA GE Canada brown base NOS 1970 (7.8/6.4ma)
(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)
