NOS 5U4GBThis 5U4-GB NOS (New old stock) replaces 5U4GA, 5U4GB, 5U4G, 5U4, 5AS4, 5AS4A and GZ37 tube types. Assorted brands in stock. Return to 0 through 5 Tube Types  5U4 Tube TypesAvailability: Usually ships within 24 hours. |
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