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(!!!) 5R4GB Sylvania branded GE black base NOS 1976

(!!!) 5R4GB Sylvania branded GE black base NOS 1976

$ 19.99

5R4GB Sylvania branded GE black base NOS 1976

 

5R4GB black base = 5R4GYB with brown base

(Y) = brown base

See more: vacuum tube
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