You are bidding for a real NOS quad GEC KT66 6L6 Clear Glass Brown Base Grey Plate OO Getter Matched. These tubes are carefully tested on my TV-7/U at 44-44-46-46/25 min good on my TV-7/U 36-38=100%. They sound wonderful in my hifi system. Super rare and hard to find now. What you see is what you get. Please look at the photos carefully before bidding. I am willing to answer any question. Selling as is due to vintage tubes. Return is accepted if you pay for the returning fees. Thanks

P/S: The shipping fees in the listing is by regular mail (normally Vietnam post) taking from 12-25 days depending on buyers' local customs. To some regions, it can take even longer than that. Besides, Vietnam post is not always available to some countries in South America, Northern Europe or Africa. Please ask me before paying. If you want to use express shipping services like DHL, Fedex or UPS express taking 3-7 working days, you have to pay an extra of around $68.75. (For order over $1000, Express shipping service is a must. Please wait for the invoice to pay). Please let me know so that I can send you an invoice. If the item(s) purchased may not arrive or faulty, please don't hesitate to contact me before opening cases on ebay. I am willing to reach to a solution and make you completely satisfied. Thanks a million.