KT88 SVETLANA PAIR VALVES/TUBES. Purchased as spares but hardly used as I then purchased a quad set of Psvane valves to go in my Eastern Electric M88 amplifier. There is no writing on the glass Will be well packed for shipping As these are used you will understand no warranty is offered See my feedback, I try to describe the item accurately and ship within 48 hrs

SVETLANA KT88 (pair) Vacuum tube (pair)-Good conditionThis product data sheet is originally written in English.  href=https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css> SVETLANA KT88 (pair) Vacuum tube (pair)-Good condition  Description Model number: KT88 (pair)Warranty period 6 months Warranty Estimated shipping 1-2 days later Registration date June 19, 2023 Features/remarksRussian vacuum tube KT88WEB No.1011080000002662[Indication based on the Secondhand Articles Dealer Act: Niigata Prefecture Public Safety Commission No. 461060001043]?Note only for products that are turned on. Products that do not turn on are not eligible?  The power supply for this product is AC100V 50/60Hz.A transformer may be required in some countries.Please prepare the transformer on the purchase side. Outlet specifications ?A typeIf it is different from A type, a converter is required.     You in areas other than 100V.If you use the transformer I sell, you can use it in areas other than 100V.ebay.comhttps://www.ebay.com/itm/373547463184ebay.ukhttps://www.ebay.com/itm/373547520813ebay.euhttps://www.ebay.com/itm/373547520926ebay.auhttps://www.ebay.com/itm/373547520958We also sell other than ebay.com.Please contact us if you would like to purchase.If you have any other questions, please contact me.* It may not be possible in some areasPlease consider carefully.Payment ??We accept payment by PayPal only.??Please payment within ??3 days after the auction closed. Shipping free shippingShip by express EMS or DHL or FedExWe will deliver by the fastest delivery method.Shipment with damage / loss insuranceWith tracking number??(10-15 days to US) ??(10-30days or more to Other countries) Terms of Sale ??[About returned goods]????Returns are accepted only if the item was?   not the item described in the aution.            [Return]       Returned goods for personal reasons will not be accepted.    International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.  Provided by HARUModel number: KT88 (pair)Warranty period 6 months Warranty Estimated shipping 1-2 days later Registration date June 19, 2023 Features/remarksRussian vacuum tube KT88WEB No.1011080000002662[Indication based on the Secondhand Articles Dealer Act: Niigata Prefecture Public Safety Commission No. 461060001043]?Note only for products that are turned on. Products that do not turn on are not eligible?  The power supply for this product is AC100V 50/60Hz.A transformer may be required in some countries.Please prepare the transformer on the purchase side. Outlet specifications ?A typeIf it is different from A type, a converter is required.     You in areas other than 100V.If you use the transformer I sell, you can use it in areas other than 100V.ebay.comhttps://www.ebay.com/itm/373547463184ebay.ukhtt MPN 6550 Brand Svetlana UPC Does not apply Country/Region of Manufacture Russian Federation Model 6550 Type Power Tubes

href=https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css> SVETLANA KT88 (pair) Vacuum tube (pair)-Good condition Description Model number: KT88 (pair)Warranty period 6 months Warranty Estimated shipping 1-2 days later Registration date June 19, 2023 Features/remarksRussian vacuum tube KT88WEB No.1011080000002662[Indication based on the Secondhand Articles Dealer Act: Niigata Prefecture Public Safety Commission No. 461060001043] ?Note only for products that are turned on.?????????????Products that do not turn on are not eligible? The power supply for this product is AC100V 50/60Hz.A transformer may be required in some countries.Please prepare the transformer on the purchase side. Outlet specifications??A typeIf it is different from A type, a converter is required. You in areas other than 100V.If you use the transformer I sell, you can use it in areas other than 100V.ebay.comhttp://www.ebay.com/itm/373547463184ebay.ukhttps://www.ebay.com/itm/373547520813 ebay.euhttps://www.ebay.com/itm/373547520926ebay.auhttps://www.ebay.com/itm/373547520958We also sell other than ebay.com.Please contact us if you would like to purchase.If you have any other questions, please contact me.* It may not be possible in some areasPlease consider carefully.Payment ??We accept payment by PayPal only. ??Please payment within ??3 days after the auction closed. Shipping free shippingShip by express EMS?or DHL or FedExWe will deliver by the fastest delivery method. Shipment with damage / loss insuranceWith tracking number ??(10-15 days to US) ??(10-30days or more to Other countries) Terms of Sale ??[About returned goods]????Returns are accepted only if the item was ? not the item described in the aution. [Return] Returned goods for personal reasons will not be accepted. International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. Provided by HARU

Rogue Audio 88 Magnum Tube Amp w/ Electro-Harmonix KT88EH, Svetlana 6550C Tubes. Heck of a combo for the right person. The combo package contains: 1. Rogue Audio 88 Magnum Tube Amp with 4 installed Electro-Harmonix KT88EH tubes. - This is the upgraded Magnum model. - Unit recently in for service and both channels play strong/clear. - Tubes have roughly 100 hours on them. - My tech tested all 7 Electro-Harmonix KT88EH tubes and installed best 4 match. Not sure, but I think numbers are all between 65 and 75. 2. 4 New Old Stock (Unused/Not Installed) Svetlana 6550C Tubes, matched set. - My tech tested and wrote 71, 72, 72, 72 on top of boxes. 3. 3 additional used Electro-Harmonix KT88EH tubes. - My tech tested and wrote 79, 68 and 46 on the tubes. Unit and items sold as-is. Will ship within Continental United States Only (Excludes Alaska and Hawaii.)

Svetlana KT88 amplifier tube(new): The Svetlana KT88 is an excellent choice for users looking to upgrade their current KT88 tubes. This tube is a glass envelope beam power tetrode. It is intended for audio frequency power amplifiers. High plate dissipation, close manufacturing tolerances, and thorough processing provides improved reliability and superior sonic performance.The Svetlana KT88 is manufactured in the Svetlana factory in St. Petersburg, Russia, and is designed to be a replacement for any KT88, KT90, KT99, or 6550.FeaturesGreatly enhanced sonic performanceIncreased peak cathode emission from the new cathode materialsStable operation from extended processing and agingGold-plated gridNew tri-plate anodeSingle piece beamforming electrodePrecise grid/screen alignmentImproved vacuum processingComprehensive static and audio amplifier testing before and after aging P