Tubes are in stock in the USA6P15P (6П15П) 100% New ItemOld stock. The tubes are new and never useddirect replacement for EL83 tubes”Reflektor” factorySame Date code (from same batch / box)Tested and Measured Pair 6P15PWe 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 the tubes with parametersLot of 2 (Matched & Balanced Pair) 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