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Vintage RCA Type 1698 monoscope electron tube from old government surplus.
* Specialized 2-inch monoscope CRT tube
* Internal target plate contains characters/geometric shapes
* Designed to generate a fixed video signal for testing and calibration
* Original package label reads “RCA 1698,” “Date PKD: 10/55” and “NORD 11537”
* Tube is etched “1698”
* Includes the original box and protective wrapping shown
* Untested due to the specialized equipment required
This appears to be unused new-old-stock government surplus; however, its operating condition has not been tested or verified. NOS refers only to its apparent unused storage condition and is not a guarantee of functionality. The box and packaging show considerable age, staining and storage wear. Please review all photos carefully for the exact tube, markings, packaging and condition included.
Due to the age, rarity, and collectible nature of this vintage tube, it is being sold as-is with no returns. Please review all photos carefully and verify compatibility before purchasing.
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