Item Tag: United States

Visit this seller’s eBay Store! TUBEMUSEUM NEW YORKALL TUBES 100% NOS / NIBWE MATCH BY TEST MEASUREMENTS – PRINT / CODES WILL VARY MULTIPLE ITEM LISTING6SN7-GT 1960’S USED LOW-NOISE BLACK FLAT-PLATE PAIR with “D” Getters: (Both tubes have identicle inner construction, D-Getters, copper-posts Black-Plates, & [6SN7 GTB] in RCA stop-sign brackets on tube. 1960’s RCA BLACK-PLATES are very coveted, esoteric, musical, detailed, quiet, smooth, accurate, with good bass, mid, & high frequency sound reproduction, a phenomenal 6SN7 that will perform miracles for your preamp! Recommended for: Rogue Audio 99 Magnum, Cary SLI-80, Atma-Sphere amps, DeHavilland preamp, Audio Aero Prestige mono amps Audio Note 300B amp, Antique Sound Lab Flora EX – DT, Singlepower PPX3-SLAM, Aesthetix Calypso, CJ MV55 Cary SLP-05 preamp, Yaqin MS-34C, Modwright Sony 5400ES, Oppo/Modwright BDP-95, and other fine 6SN7 preamps … comes in ORIGINAL NUMBERED boxes! PASSED THE AMPLITREX DIGITAL TESTSLow-Noise Tested Microphonic FreeNo 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. Question: I see various colors for the RCA name on the base of the tubes…. some are white, orange, and yours appear to be red. They are all Black base from the 1950 and 1960’s. Are they all the same exact tube ( sound wise)?Answer: I wouldn’t know unless I listened to each individual pair. The way a tube tests is important and that they are matched in tube-gain or what is called Mu, and Plate Resistance or what is called RP Ohms, as well as DC Plate Current. So, unless you heard several vintages ALL with the SAME EXACT test results it wouldn’t be a fair comparison, now would it? RCA changed the lettering color from white to red usually from 1950’s to 1960’s. The orange is the red that has naturally faded. You can be assured of receiving the best tubes from The Tube Museum because we accurately test and report the true test results. Sound is subjective and everyone hears differently and has different gear, preamps, speakers, and where the speakers are placed in a room also play a major part in room-acoustics. Try putting a speaker in a corner and the bass will increase, if a speaker is by an open hallway or open door that will affect the sound of a room. Wire, the other tubes, your delivery-vehicle; DAC, CD, turntable, headphones, etc. all play a part in the way a tube sounds. Also, NOS tubes needs to burn-in for 40 to 60 hours before they wake up from their 1960’s deep-sleep to really shine.Terms of AuctionBID 1 FOR A PAIR! 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 PayPal Welcome! BID 1 FOR A PAIR!TUBEMUSEUM NEW YORK Visit this seller’s eBay Store!