<p>Listing includes 2 matched tubes.<br><br>Brand: General Electric, Military Unbranded<br><br> Type: Premium Audio Tube<br><br> Model: 5670 / 2C51</p><ul><li>Black Plate</li><li>Round O Getter</li><li>Glass Envelope</li><li>2 Mica</li></ul><p>Country of Manufacturer: USA<br><br> Condition: Tested, matched.<br><br> Collective value.</p><p>LOT5670</p>