This is a mixed lot of 12 vintage and more recent (50's and 60's) electron tubes manufactured by companies such as RCA. RCA Radiotron, Raytheon, and Tung-Sol. Each tube has been VOM tested for filament continuity and each has a normal, working filament. Beyond that, no further testing.
This lot includes the following tubes and quantity: Tung-Sol 6550 (2), RCA 820B (2), RCA 6L6GC (2), Raytheon JAN-CRP-807 (1), RCA 5Y3 (1), RCA Radiotron UX 245 (1), RCA Radiotron UY 224 (1), Cunningham CX 345 (1), RCA unknown type, may be a dual diode (1). Each tube is clean and appears to be in good shape without any marks, scratches, burns, discoloration, or signs of misuse. The RCA Radiotron UX 245 has a slightly loose base. Two of the vintage tubes have engraved bases for type identification.
These items will be carefully packaged and shipped via USPS Ground. Buyer to cover shipping costs, seller will insure shipment for and amount matching the final auction price. Contact seller via eBay email for questions concerning this auction, additional information and/or photos upon request.