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(!!!!) (Best Overall Single) GB-5687 Sylvania Gold Brand Gold Pins NOS 1960's (41/43ma) (Highest Ma and Gm)

(!!!!) (Best Overall Single) GB-5687 Sylvania Gold Brand Gold Pins NOS 1960's (41/43ma) (Highest Ma and Gm)

$ 129.99

1 low noise tube) GB-5687 Sylvania Gold Brand Gold Pins NOS 1960's

41ma Gm=13,000

43ma Gm=13,200

 

- rare

 

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