| Reference Number: Avaluer:7478131 | Brand: National Union |
| Country/Region of Manufacture: United States | Model: 813 |
| MPN: Does Not Apply | Type: Vacuum Tube |
National Union Jan - Cnu - 813 Vt - 144 U. S. Navy Transmitting Power Tube
Two National Union Jan - Cnu - 813 Tube, (vt - 144)
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