DESCRIPTION: FOR ONLY ONE TUBE Condition: NOS New old stock Some boxes are brittle, or have imperfections, starting to crumble if they are not salvageable will ship in plain or different brand box Please note: These tubes may be NOS or test NOS but will actually have a few hours of use from manufacturer or due from testing through time to time on them. A truly NOS tube will have excellent getter flashing condition, no dirt/grime, usually in the original box, and no filament deposits and has never been tested. Please expect the tube to have a small amount of used. * Since vacuum tubes were made 30 – 70 years ago New Old Stock or Used may have cosmetic evidence of age. This includes poor print, oxidized pins, faint discoloration, or poorly boxes All tubes will be retested before shipping.On a mutual conductance tester=GM Either on Hickok models 6000/A,539C,533A,800,VT-7d/u,I-117 military tester or a B&K 700,747 1. Complete visual inspection 2. Allow 1 minute warm up time 3. Test for actual real-life mutual conductance (life) of the tube (including any shorts,gas and leakage) 4. Test for proper gain of the tube (perhaps the single most important test of a preamp tube 5. Test for noise -both in static and dynamic situations 6. Repeat all tests for accuracy on other tester If some prove defective during testing, and we are unable to provide a substitute acceptable to buyer, an immediate no hassle refund will be issued. Please take this consideration If I state any values they are for a guide only. Two testers are never the same. So this shows what I get, and what you get may be slightly different. Shipment Items are normally shipped within 1 to 2 business days of payment clearing, most of the time much sooner We ship Monday thru Friday and sometime Saturday but I can’t promise. We will do all we can to help. We ship via USPS or Fedex. If you purchased multiple tubes, I will combine shipping cost depending on weight and package size please request to combined shipping PLEASE USE "ADD TO CART" when making your multiple purchases within my listings. When done it will automatic combined. if don't work please request for combine shipping prior payment. International Buyers Please Note: Buyer is responsible for all taxes, duties, and import fees. Please contact your local customs office for costs. We will not mark your purchase as a gift. We do not generate shipping costs. Return Policy Contact Us If you're in any way dissatisfied with your purchase, do not hesitate to contact us through "MY MESSAGES" . We will do our best to solve it for you. We are committed to ensuring that you are completely satisfied with every transaction. So Please DO contact us first to get a better solution before you would leave a Negative or Neutral feedback. Feedback ★★★★★ If you are satisfied with our products and service, please help to leave "Positive Feedback" and "5 Perfect Stars" for us when you receive your items and we will do the same for you. Thanks in advance! Track Page Views With Auctiva's FREE Counter