(BEST PRICE) 8509 NOS (4 for $99.99)
By Tube World
$ 99.99
4 for $99.99
(4) 8509 Amperex NOS original boxes
(4) 8509 GE NOS original boxes
(8509=5894 with quick heating 2V @ 3.25A filament)
See more: vacuum tube
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