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(!!!!!) (Best Pair #1) E182CC=7119 Philips SQ Holland NOS large "O" getter halo 1973 same date codes (34/35.4ma and 34.2/35ma) 1-2% matched
(!!!!!) (Best Pair #2) E182CC=7119 Philips SQ Holland NOS large "O" getter halo 1973 same date codes (35.5/38.2ma and 35/40ma) 1-5% matched
(!!!!) (2nd Best Amperex PQ Single) 6922 Amperex PQ USA NOS 1962 (14.5/16.2ma) (Audio Research, Nova)
(!!!!) (Best Amperex Pair) 6922 US Navy Amperex and Amperex branded RCA USA NOS 1963-1964 (18.8/17.6ma and 18.5/20.2ma) (close Gm matching) (Audio Research, Nova, CAT, CJ, Lab 12)
(!!!!) (Best Single 1958) 6922 Amperex Holland curved "D" getter 1958 NOS (16.2/17.8ma) (same sonics as pinched waist version)
(!!!!) (slightly microphonic pair) E182CC=7119 Philips Miniwatt SQ Holland NOS large "O" getter halo 1962 (35/36ma and 36/34ma)
(!!!) (Single 1966) 6688=E180F Siemens Holland NOS gold pins 1966 (8ma)
(!!!) (Single) 6688=E180F Amperex PQ USA NOS "O" getter 1968 (9ma)
(!!) (Good Value Single) 6922 Amperex PQ Holland gold pins used/good 1961 (10/19ma) (mic)
(!) 6922 Amperex PQ USA gold pins used/good 1971 (9.3/10.4ma) (good Gm)
(slightly microphonic) 6922 Amperex PQ Holland 1962 low hours/like new (11.2/11.6ma)
7788=E810F Amperex PQ USA NOS 1969-1970 (33ma)
JAN-7788 Amperex USA NOS 1986 (54ma)
