6CM7 RCA black plates NOS 1956 (4.3ma and 22ma) (rare)
$ 14.99
6CM7 RCA black plates "U" getter NOS 1956
4.3ma Gm=2000
22ma Gm=4900
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6CM7 RCA black plates "U" getter NOS 1956
4.3ma Gm=2000
22ma Gm=4900