(!!!!) (Good Single) E88CC=6922 Philips SQ Holland used/tests like new 1968 (13.0/12.6ma) (3D MIDS, low noise) (same Gm)
(!!!) (sold out) E810F=7788 Philips Miniwatt SQ Holland gold pins used/very good 1965-1967 (38ma and 39ma)
(!!) (Best Single) E80F=6084 Philips SQ NOS Gold Pins 1971 (3.5ma)
(!!) (PAIR) E81L=6686 Siemens made By Valvo, Hamburg, Germany NOS 1968 (13.4ma and 13.8ma)
(!!) (PAIR) E81L=6686 Siemens made By Valvo, Hamburg, Germany NOS 1968-1972 (18.4ma and 18.5ma)
(!!) (Recommended Single) 5751 Siemens Halske triple mica branded Philips SQ like new 1968 (2.4/2.4ma) 1% section balance
(!) E81L=6686 Philips SQ made By Valvo, Hamburg, Germany NOS 1971 (16.6 and 17.4ma)