5U4GB/5AS4A NIB Sylvania Rectifier Vacuum Tube Black Plate Halo Balanced NOS
USD 22.41 USD
Specifications
| Brand | Sylvania |
| Type | Vacuum Tube |
| Model | 5U4GB/5AS4A |
| Country Of Origin | United States |
This tube has been fully tested and it is free of any leaks, shorts, emissions or quality issues. On a Hickok style Jackson 103 tester the minimum good for each line of a 5U4GB is 25, and both lines tested right at 40 it’s got excellent balance and it’s super strong.
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