Tubes are in stock in the USA6P1P-EV (6П1П-ЕВ) 100% New ItemOld stock. The tubes are new and never used"Svetlana" factorySame Date code (from same batch)"OTK" markedTested and Measured Quad 6P1P-EVWe test our tubes from this type on High-End Military Tube Tester: L3-3Measured parameters attached to each tube, difference < 3% on the photo shows an example of tubes with parametersLot of 4 (Matched & Balanced Quartet) Other tubes in stock in the USA (the range and quantity is constantly increasing):US Stock Vacuum Tubes Shipping:Tubes are in stock in the USA, and will be shipped via USPS Ground Advantage ®To all other countries through eBay International Shipping program