Tested on a Heathkit TT1, minimum good tube is 6600 µmhos and NOS tubes tested at 10200 µmhos. Also tested on a Hickok 539c. We are here to help!
Item Tag: 7591
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7591 RCA VACUUM TUBES QUAD TEST NOS
Tested on a Heathkit TT1, minimum good tube is 6600 µmhos and NOS tubes tested at 10200 µmhos. Also tested on a Hickok 539c. We are here to help!
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Sylvania 7591 7591A Used Good Testing Values Red Prints
The tube was carefully tested on my TV-7D/U at 52/36 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.
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Lowrey 7591 7591A Fat Base Copper Plates NOS Excellent Testing Values
You are bidding for 1 tube Lowrey 7591 fat base copper plates NOS Excellent Testing Values. The tube was carefully tested on my TV-7D/U at 68/36 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.
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RARE Westinghouse 6013 WL7611 Electronic Tube
This is a large for display only electronic tube. I’ve never seen anything like this. Comes with a cover. 14 inches long!
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7591 A General Electric Made in U.S.A Amplitrex AT1000 1MP #552001
Tested Advance Digital Tube Tester Amplitrex AT1000. Amplitrex AT1000 Advance Digital Tube Tester, Hickok 752a tube tester, AVO Type 160. 1MP 807 VT100 RCA=6L6 EL34 ”D” Getter Made in U.S.A Amplitrex Tested#542122&115.
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7591 A FISHER Made in U.S.A Amplitrex AT1000 #546006,546007,546002
Tested Advance Digital Tube Tester Amplitrex AT1000. Amplitrex AT1000 Advance Digital Tube Tester, Hickok 752a tube tester, AVO Type 160. 1MP 807 VT100 RCA=6L6 EL34 ”D” Getter Made in U.S.A Amplitrex Tested#542122&115.
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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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Sylvania 7591 7591A Excellent Value NOS NIB
The tube was carefully tested on my TV-7D/U as shown in the photos with 36 min good (55-56=100%). It sounded wonderful on my hifi system with other 3 new tubes. Super rare and hard to find now.