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> Gb-5814A sylvania gold brand nos 12AU7 gb 5814
Gb-5814A sylvania gold brand nos 12AU7 gb 5814
You are looking at a single NOS NIB GB-5814A Sylvania Gold Brand NOS NIB 12AU7 GB 5814 type tube. It has gray plates, triple mica spacers, and a top halo.
My tube tester is a SECO 107A Dynamic Mutual Conductance Tester. Good is at 60, but all tubes listed as NOS or NIB will have tested over 100, have no shorts, leaks or gas.
