VINTAGE <> USSR <> PRODUCTION 6P15P-EV ( 6?15?-EB ) Pentode Tubes Military Grade ,SARATOV,OTK-5 Made in the Soviet Union for the Bulgarian Military Needs1971,2 year production This auction is for lot of 2 TESTED & ELECTRICALLY MATCHED pair tubes! Test results Ia Ig2 S mA mA mA/V Tube 1 test results:28.0 4.0 15.0 Tube 2 test results: 30.0 4.5 15.0 Tested @ catalog parameters: Ua = 250V,Ug2 = 150V, Rk = 75ohm where 100% is: Ia=30.0mA / S =15.0mA/V Ig2=4.5 mAWe test our tubes from this type on High-End Soviet Military Tube Tester: L3-3, as pictured below! Terms and ConditionsBy committing a purchase from this listing you confirm, that you have read, fully understand and accept the following: The item(s) will be shipped by: ECONOMY international mail ( without tracking ) or STANDARD international mail ( with tracking ) it depends on what service you will choose during the eBay checkout. Using a tracked service is always recommended! IMPORTANT: If your order came with Economy mail chosen, you acknowledge, that you have consciously chosen an unregistered service without the possibility to have your package tracked/located in transit, therefore all associated risks of delays and/or loss of the package remain buyers responsibility and for your own expense. After-sale customer support in terms of order tracking, refunds and/or replacements in cases of delay and/or loss in transit will be ONLY possible for orders with Standard mail and will not be offered for orders with Economy mail chosen! Estimated Time of Delivery: Economy ( Europe 10-20 business days / Rest of the world 15-45 business days ) Standard ( Europe 7 - 10 business days / Rest of the world 10-15 business days) NOTE: - If you purchase several items you might be eligible for combined shipment discount in order to reduce shipment costs. Please contact us, if you intend to purchase multiple items or if you already did, so we can review and adjust your total, if needed. - We reserve our right to offer only tracked mail and/or better service to selected listings and countries and refuse posting Economy, even if that service has been selected during check-out (in such cases we will contact you before posting with alternative options)