Audio Tubes Direct is an Authorized Tung-Sol Dealer. We have over 3000 successful transactions on other websites with a 100% feedback rating. Manufactured in the famous Reflector plant in Saratov, Russia, these brand new tubes have been fully tested on the industrys most reliable, voltage controlled testing equipment and exceed all manufacturer specifications. They are guaranteed from the manufacturer to be new and free from any defects in materials or craftsmanship and are backed by our 30 Day Warranty. Matching: We consider power tubes to match when the Plate Current(lp) and the Transconductance(Gm) vary less than 5%. Test results are printed on the box. For technical information about this product visit: www.tung-sol.com
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