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(!!) (Recommended Single) JAN-12AX7WA Sylvania NOS 1974 (Gm=2100/2300 and 1.7/1.9ma)
(!!) 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)
(!!) 5R4GYB RCA rebranded Raytheon NOS 1960's (50/40 and 53/40)
(!!) 6BM8=ECL82 Philips Miniwatt Holland used/good 1966 (2.4ma/25ma)
(!!) 6BM8=ECL82 Philiups Miniwatt by Mullard used/good 1959 (1.8ma/23ma)
(!!) 6BM8=ECL82 Pope Holland used/good 1965 (2.4ma/24ma)
(Best Single) 6202 Tungsol NOS curved "D" getter 1960 in white box (58/40 and 62/40)
(Good Value Pair) EL34 Mullard UK XF2 single halo used/good 1969-1972 (83.6ma and 85.6ma)
(SINGLE) 6021 European NOS 1974 (20 in stock)
(slightly microphonic) 6922 Amperex PQ Holland 1962 low hours/like new (11.2/11.6ma)
*** SPAIN 2.24.25 (!!!) (Recommended Single) 6922=E88CC Tesla Czech Republic NOS 1972 (10.8/11.5ma)
291A Western Electric NOS 1972 (45/25)
5R4GYB RCA NOS 1970 (53/40 and 52/40)
5R4GYB RCA NOS 1970 slightly tilted glass (52/40 and 53/40)
5R4GYB RCA used/strong 1970 (52/40 and 54/40)
6202 GE branded National NOS 1960's (51/40 and 51/40)
6202 RCA low hours/like new 1969 (55/40 and 60/40)
6202 RCA NOS 1972 (52/40 and 54/40)
EC88=6DL4 Valvo branded Amperex Germany NOS 1972 (11.5ma)