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(!!!!!) (Best Siemens Pair) 6922=E88CC Siemens Halske Germany branded "ECC88 Industria" gray shield NOS 1965 (16.6/17.0ma and 19.8/16.0ma) (mic, phono preamp)
(!!!!) (Best Single #3) EF86 Telefunken Germany <> bottom NOS gray shield 1972 (2.8ma) (Neumann, Lawson, Soundelux, Manley)
E88CC=6922 Siemens Halske Germany "gray shield" Gold Pins used/good 1963 (10.6/12.2ma)
