NOS NIB 7591A SYLVANIA. Tested Advance Digital Tube Tester Amplitrex AT1000. We specialized in thoroughly tested and screened quality vacuum tubes.We have various type of valves and tubes testers Like Amplitrex AT1000 Advance Digital Tube Tester, Hickok 752a tube tester, AVO Type 160.
Item Tag: SYLVANIA
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Sylvania 7591a -Display Only-
Beautiful vintage tubes but all are duds or very low GM. Sold first display only. Asis no returns
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Mixed Brands Sylvania Hammond 7591 7591A Excellent Values One Tube Price
The tube was carefully tested on my TV-7D/U as shown in the photos with 36 min good (55-56=100%). They all sound wonderful on my hifi system. Super rare and hard to find now.
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(4) 7591 Sylvania U.S.A. Sansui Fisher Output vacuum tube valve
This item are 4tubes7591A Sylvania Made in U.S.A. Test result 70-75 min 36. Grey plate, O-Getter, Coin base, no original box. Used tubes.
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Sylvania 7591 7591A Excellent Testing Values Matched Quad
The tube was carefully tested on my TV-7D/U at 68-70-70-72/36 min good (55-56=100%). They all sound wonderful on my hifi system. Super rare and hard to find now.
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Sylvania 7591 7591A NOS Excellent Testing Values Red Prints
You are bidding for 1 Sylvania 7591 7591A NOS Excellent Testing Values Red Prints. The tube was carefully tested on my TV-7D/U at 70/36 min good (55-56=100%). It sounds wonderful on my hifi system with other new tubes. 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 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. Ok