6F5 GE Amperex metal can NOS (1.0ma Gm=1500)
$ 4.99
6F5 GE Amperex metal can NOS 1970 era (1.0ma Gm=1500)
(6F5 octal base is similar spec-wise to 7B4 loktal, Mu=100)
Zenith 10S669 radio 1941
Zenith 9S369 radio
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