TUBEMUSEUM NEW YORK
CHECK OUT THIS YouTube VIDEO FEATURING SYLVANIA 6SN7-GTB TUBES: https://youtu.be/YCx4mir-HpU
3-HOLE BLACK-PLATES AND TEST MEASUREMENTS LISTED BELOW OF THE TUBES YOU WILL RECEIVE
AMPLITREX AT-1000 DIGITALLY TESTED SYLVANIA USA 6SN7-GT TUBES
6SN7GTB = SAME as GTA, but with FASTER tube heat-up
| Feedback | From | When | |
 | Stellar tubes. Stellar seller. A class act all around. Appreciate everything! | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| Excellent Service. Quick secure, professional delivery | Buyer | April 13, 2017 |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| Easy transaction, as described. | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| Beautiful tubes. Sound wonderful. Great price. A+++ | Buyer | During past month |
| NOS SYLVANIA JAN CHS 6SN7GT VT-231 TUBES 1940s WW2 TROPHY QUALITY 115/115% PAIRS (#291678838545) | US $273.90 |
ACTUAL FEEDBACK FROM THESE TUBES:
| Feedback | From | When | |
| Accurate description, quick shipping & really great-sounding tubes in my amp! | Buyer | During past month 8/8/16 |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| Beautiful! | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| Item arrived. Perfect all. Great seller. Thanks a lot! | Buyer | March 25, 2016 |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| perfect seller,many thanks | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| Great product condition, exceptional packaging! | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) | US $239.97 |
| Feedback | From | When | |
| Great eBay seller. A+ | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) |
| Feedback | From | When | |
| Excellent tubes, well packed and arrived fast. Thanks. | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) |
| Feedback | From | When | |
| Fantastic Service as Usual... Great Tubes. Highly Recommended Seller. | Buyer | During past month |
| NOS SYLVANIA 6SN7-GT 6SN7 6SN7GT CHROME-TOP MATCHED PAIR BLACK PLATE Tubes 1954 (#291497564203) |
| Feedback | From | When | |
| EXCELLENT!!! | Buyer | During past month |
| NOS 5692 6SN7 Perfect Low Noise SINGLE TUBE BLACK PLATE Audio Class Tubes |
| Good tube, Amazing Sound, cannot believe they were from 1950's and can still work well | ||
| SYLVANIA NOS 6SN7GT 6SN7 LowNoise Matched BLACK PLATE Tubes 1940 for Cary SLP 05 (#290883848934) |
| Item # : | 231073299926 |
| Sale price: | $209.97 |
| Everything checks out, Thank you | ||
| SYLVANIA 6SN7GT 6SN7 3-HOLE 6SN7W CHROME-TOP "SHORT-BOTTLE" MATCHED USA Tubes (#231073299926) | US $239.97 |
Historic TubeMuseum, Tuxedo Park, New York Established in 1928 as a premier research facility in Tuxedo Park, New York, that attracted such brilliant and most visionary minds of the twentieth century - Albert Einstein, Werner Heisenberg, James Franck, Niels Bohr and Enrico Fermi to name a few. The Tuxedo Park lab attracted these top-flight scientists who experimented with audio, sound, time measurement, and radar (first klystron tube). Welcome to the ...
TUBEMUSEUM NEW YORK
BID 1 FOR A PAIR !
New-Old-Stock
SYLVANIA USA
Made in USA in 1954
SIXTY-NINE (69) YEAR-OLD NOS TUBES!
CHROME-TOP 6SN7-GTB
6SN7GTB = SAME as GTA, but with FASTER tube heat-up
PRINT ON TUBES AS DISPLAYED
A RARE LIMITED QUANTITY PAIR
LAST PAIR! @ 2,400/2,400 % 2,400/2,400
SYMMETRICAL MATCHED PAIR
SIXTY-NINE (69) YEAR OLD SYLVANIA 6SN7-GTB MATCHED PAIR!
Dual Triode Perfect ELECTRICAL Matched Pair
|
Sub-bass (10Hz - 60Hz) |
CHECKED & PASSED |
|
Mid-bass (80Hz - 200Hz) |
CHECKED & PASSED |
| Midrange (200Hz - 3,000Hz) |
CHECKED & PASSED |
|
High-frequencies (3,000Hz on up) |
CHECKED & PASSED |
"3-HOLE" BLACK-PLATES
CHROME-TOP-SQUARE-GETTER
- Mikhail Rotenberg’s Singlepower Audio massive SDS XLR amplifier.
- Atma-Sphere P1
- Cary Audio SLP 05
- Grant Fidelity (Yaqin) B-283 mkII tube buffer
- Valvet Audio preamp
- Singlepower PPX3-SLAM
- Aesthetix Calypso
- CJ MV55
- Cary SLP-05 preamp
- Yaqin MS-34C
- Modwright Sony 5400ES
- Oppo/Modwright BDP-95
- VAC Renaissance 30/30 MKIII
- Bottlehead Crack
…"Best described as having a euphonic sonic signature...
Pervasive tube warmth that blankets the midrange irrespective of the program material falls in this category, and has proven to be a siren call for many 6SN7-GT tube-o-philes.
Overly liquefying harmonic textures make these tubes a real keeper"…..
Sixty-Nine (69) YEAR OLD SYLVANIA 6SN7-GTB MATCHED PAIR!
Rarely do you see such a fine tube pair with THICK-MASSIVE-CHROME-TOPS and Perfect Specifications:
Great USA tube now extinct NOS - Made specifically for audio in the 1940's with "CB" and "DF" codes which correspond to SYLVANIA "SET-CODES" for various radio/receiver "sets"
3-HOLE BLACK-PLATES AND TEST MEASUREMENTS LISTED ABOVE OF THE TUBES YOU WILL RECEIVE!
Superior designed for critical industrial applications where 10,000 hour life, close triode section balance, rigid construction and stability are required. 6SN7GT BLACK-PLATES were also labelled and synonymous to VT-231
CHROME TOP getters and BLACK BASE "BLACK PLATES"
Superior BLACK-PLATE designed for critical industrial applications where 10,000 hour life, close triode section balance, rigid construction and stability are required.
PASSED THE AMPLITREX DIGITAL TESTS = NO HEATER-TO-CATHODE LEAKS!
Low-Noise Tested Microphonic Free
No H-to-K Leakage (Heater-to-Cathode) No leaks (0) zero!
Actual tube was tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System
CERTIFIED ULTRA-LOW-NOISE MUSEUM SPECIMENS
TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.
Terms of Auction
BID 1 FOR A PAIR !
We do not lower value for International shipping, so please don't ask
International Buyers - Please note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. And let's get this straight in our understanding - I don't need any buyers who ask to break the law, the same items will sell to buyers whom abide by the law and are willing to go by the rules of their county. Audiophiles need and appreciate us - because most of the tubes being sold elsewhere are misrepresented and used defects being re-circulated from buyer to buyer. Tube Museum tubes takes the guess-work out of tube buying delivering the BEST QUALITY honestly tested and Certified stereo tubes.
Per eBay's terms of service which every eBay account holder must agree to as part of being an eBay member, a bid is a legally binding contract. Please read the Terms & Conditions carefully before bidding. By bidding on this auction, you understand and agree to eBay's terms of service as well as all terms and conditions mentioned here.
Buyer pays all shipping, Item must be in original condition including cosmetic lettering on tubes so handle with white-glove care, un-used with all original boxes, packing material, environmentally safe cornstarch pellets, and shipping box. ALL RETURNS subject to a 10% handling charge. Absolutely NO RETURNS on special orders or best-offer deals. All sales are final with NO RETURNS on self installed mic tubes.
All exchanges must be pre-paid and returned in original packing, complete with no sign of wear or abuse, exactly the same condition as it was when you received it. In the event that the product is not in the same condition, and does not test the same as you received it, you will be subject to a refusal and return, a determined restocking fee, repair charge, or disqualification. RETURN AUTHORIZATION (RA) number and instructions is required before sending any items. Shipping and handling charges are non-refundable.
We do not guarantee that your tester, or your tester's measurements will be the same as the Amplitrex AT-1000. Older testers, different testers, or the same tester may report different test measurements, and may not measure the same tube meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift) There is no warranty or returns based on what any other tube tester reports.
THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION
THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION
"EXPRESS SHIPPING" required for certain countries, (check first before you bid or we reserve the right to cancel your bid)
"EXPRESS SHIPPING" required for certain countries, (check first before you bid or we reserve the right to cancel your bid)
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BID 1 FOR A PAIR!
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TUBEMUSEUM NEW YORK
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