| Brand | SYLVANIA |
|---|---|
| Type | Vacuum Tube |
| Model | 5R4GYB |
Check the listing for details. Sylvania 5R4GYB Vacuum Tubes (2) TV-7 Tested & Guaranteed. Condition: Used. Listed at 50.00 USD. Two Sylvania 5R4GYB vacuum tubes TV-7 tested. Minimum value is 40. Check on TV-7 is.
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