6136 = 6AU6WA.”1944 6AU6WA are worlds above in realism, depth, liquid-midrange, anda different kind of clarity, beautiful to observe and describe.”.just like the recording engineer intended you to hear”.
BEAUTIFUL 4 NOS DATE MATCHED EARLY 1954 RCA 6AU6 Tubes Square Getter quad #19
This is a date matched quad of 6AU6 tubes. 426 code is a manufacture date of June 1954. I also have 2 Tektronix 576 curve tracers which I use for semiconductors. I have been collecting tubes for 40 years and have amassed about 10,000.
BEAUTIFUL 4 NOS DATE MATCHED EARLY 1954 RCA 6AU6 Tubes Square Getter quad #18
This is a date matched quad of 6AU6 tubes. 426 code is a manufacture date of June 1954. I also have 2 Tektronix 576 curve tracers which I use for semiconductors. I have been collecting tubes for 40 years and have amassed about 10,000.
6AU6 6AU6W 6136 NOS G.E. JET-BLACK-PLATE MATCHED-PAIR TUBES 1954 AMERICAN NAVY
1954 NOS GE 6AU6 NAVY 6AU6WA. These rival the Bendix in sound and black-plate construction quality, and are as scarce, even more so, because most Bendix are used! VERY difficult to find these in a PERFECT single tube like this !
BEST SONY OEM LN 6AU6 Tube for SONY C800G C37A WARM Audio WA-8000 NEW! 125% mA!
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 ACTUAL FEEDBACK ABOUT THESE PHENOMENAL 6AU6’s: FEEDBACKFEEDBACKFROMWHENGreat transaction NOS SONY OEM LOW-NOISE 6AU6 Tube for SONY C800G C37A Altec 21 WARM Audio WA-8000 (#235053132388)Buyer: shawndau84 (146)US $339.84Verified purchasePast month Great seller. Packaged with great care and arrived quickly. As described. Beautiful. My microphone’s noise floor dropped 20% and their gain increased! great tube! very low noise in my c37a A 5star vender. Good as gold. 👍👍👍. Delivered 3 days earlier than estimate A+++ Seller! The tubes are every bit as great as I have read about! Thank you! Superb company, amazing customer service and great quality products. A*+ 101%!!! Im a very critical tube buyer. These are actual NOS vintage tubes. Thanks!! Outstanding quality Thank you. PRICE is EACH! Bid 2 for 2 tubes, 4 for 4… NOS TUBE MUSEUM QUALITYSONY O.E.M.6AU6 = EF94″GOLD-GRID” VERSIONfor SUPERIOR PERFORMANCESONY’s ORIGINAL EQUIPTMENT MAUFACTURER PICTURES OF THE ACTUAL NOS GOLD-GRID TUBE(S) YOU WILL RECEIVETUBE 1: AMPLITREX TESTED @ 5,500 (125%) AVAILABLE! TUBE 2: AMPLITREX TESTED @ 5,400 (122%) AVAILABLE!TUBE 3: AMPLITREX TESTED @ 5,000 (113%) AVAILABLE! TUBE 4: AMPLITREX TESTED @ 4,900 (111%) AVAILABLE! TUBE 5: AMPLITREX TESTED @ 4,900 (111%) AVAILABLE!TUBE 6: AMPLITREX TESTED @ 4,900 (111%) AVAILABLE! 6AU6 = EF94 “GOLD-GRID” VERSIONPICTURES OF THE ACTUAL NOS GOLD-GRID TUBE(S) YOU WILL RECEIVEfor SUPERIOR ELECTRICAL PERFORMANCE LOW-NOISE AMPLITREX DIGITALLY TESTED O.E.M. AVAILABLE NOW! LIMITED QUANTITIES! NOS 6AU6 Tube for Sony C800G, C37A, and Altec 21 Warm Audio WA-8000 PRICE is EACH! Bid 1 for 1 tube A tad longer than a the Diamond Telefunken 6AU6. The length of the tube is insignificant, it’s the tube’s performance that matters.6AU6 SAME AS SONY OEM LOW-NOISE AMPLITREX DIGITALLY TESTED microphone quality 6AU6 Tube for Sony C37A and Altec 21. “GOLD-GRID” VERSIONfor SUPERIOR PERFORMANCEBRILLIANT CLEAN NOS WITH RHODIUM PINS AND OUTSTANDING MATCHED RESULTS. PICTURES OF THE ACTUAL NOS TUBE(S) YOU WILL RECEIVEBEAUTIFUL NOS IN WHITE BOX. NO MORE SONY BOXES LEFT! * THESE TUBES LABELLED TELEFUNKEN & SIEMENS NOT FOR SALE AND NOT AVAILABLE!These are the highest quality 6AU6 tubes, such high quality that in the 1970’s …* TELEFUNKEN and SIEMENS of WEST GERMANY sourced & labeled these EXACT SAME tubes as their own! The picture above shows you this fact! “GOLD-GRID” VERSIONfor SUPERIOR PERFORMANCE Recommended for: McIntosh Tuners & Microphones – Schoeps CM61 mic -Sony C37A and Altec 21 – C800G Sony mic – C37A Sony mic – McIntosh Model MR FM Tuners: MA 6 Multiplex adapter for MR66 x 1 tube MR 55 Tube. AM-FM Mono. x 3 tubes MR 55A Tube. AM-FM Mono. x 4 tubes. MR 65 Tube. Mono. x 4 tubes MR 65B Tube. FM tuner Stereo. x 4 tubes MR 66 Tube. Mono/stereo. x 4 tubes MR 67 Tube FM tuner. Stereo. x 3 tubes MR 71 Tube. FM Stereo. x 4 tubes Note: COMPARISION OF THE SAME IDENTICLE TUBE BEING OFFERED – TELEFUNKEN-SIEMENS 6AU6 vs. SIEMENS 6AU6 – ARE THE SAME IDENTICAL TUBE! The Telefunken labeled tube pair is displayed for historical purposes only and NOT included in this sale, but were available at one time way back when. These are the highest quality 6AU6 tubes, such high quality that in the 1970’s Telefunken and SIEMENS of Western Germany, sourced & labeled these tubes as their own! Telefunken would not have put their name on these tubes, if they were not the best possible highest quality tubes!. The Telefunken and Siemens labeled tubes are displayed for historical purposes only and NOT included in sale! 6AU6=EF94 / 6AU6A Sharp-Cutoff RF Pentode Recommended for: McIntosh Tuners & Microphones – Schoeps CM61 mic -Sony C37A and Altec 21 – C800G Sony mic – C37A Sony mic – McIntosh Model MR FM Tuners: MA 6 Multiplex adapter for MR66 x 1 tube MR 55 Tube. AM-FM Mono. x 3 tubes MR 55A Tube. AM-FM Mono. x 4 tubes. MR 65 Tube. Mono. x 4 tubes MR 65B Tube. FM tuner Stereo. x 4 tubes MR 66 Tube. Mono/stereo. x 4 tubes MR 67 Tube FM tuner. Stereo. x 3 tubes MR 71 Tube. FM Stereo. x 4 tubes Change your TUNER or MICROPHONE into something better withTUBE MUSEUM CERTIFIEDLOW-NOISE AMPLITREX TESTED 6AU6 = EF94″GOLD-GRID” VERSIONfor SUPERIOR PERFORMANCETested on Amplitrex AT1000 Digital Tube Test System Tested on the Amplitrex AT-1000 with phenomenal results All tubes test 3,800 to 4,400 mA/V = 100% Select 2 for a matched pair (2 tubes)Select 4 for a matched quad (4 tubes) THIS TUBE HAS ZERO (0) uA leaks and zero (0) mA gasmicrophonic free Amplitrex Tested Tube Actual tube was tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System CERTIFIED ULTRA-LOW-NOISE MUSEUM SPECIMENSTubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be. Terms of Auction6AU6 “GOLD-GRID” VERSIONfor SUPERIOR PERFORMANCEAttention: Warranty Void and No Returns if STICKER on tube is removed. Bid ONE (1) for A SINGLE TUBE! Bid TWO (2) for the matched balanced pair!Bid FOUR (4) for the matched balanced QUAD!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. We do not low declare and we insure for full value.NO ZERO (0) FEEDBACK BUYERS – YOU NEED PRIOR PERMISSION TO BID OR BUY 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 Please SEE my other ebay Auctions : Visit this seller’s eBay Store! TUBEMUSEUM NEW YORK
NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21
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 waves. He turned this Tuxedo Park laboratory into a meeting place for the most visionary minds of the twentieth century; Albert Einstein, and the aforementioned scientists. Today this location is the home of The Tube Museum New York. ( featured on Wikipedia® )Welcome to …Visit this seller’s eBay Store! TUBEMUSEUM NEW YORKActual Feedback about these tubes: Great seller. Packaged with great care and arrived quickly. As described. Beautiful. My microphone’s noise floor dropped 20% and their gain increased!NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725)Buyer: fortean1xu2 (197)great tube! very low noise in my c37aNOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE Tube for McINTOSH MR Sony C37A Altec 21 (#232210245099)Buyer: tubular_audio (140) Past 6 monthsFeedbackFromWhenA 5star vender. Good as gold. 👍👍👍. Delivered 3 days earlier than estimate Buyer: quayhogamplifiers ( 1282) During past month NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725) FeedbackFromWhenA+++ Seller! The tubes are every bit as great as I have read about! Thank you!Buyer: rustturnstogold ( 65) During past month NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725) FeedbackFromWhenSuperb company, amazing customer service and great quality products. A*+ 101%!!!Buyer: harveyleesummers ( 455) During past month NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725) FeedbackFromWhenIm a very critical tube buyer. These are actual NOS vintage tubes. Thanks!!Buyer: resoundingamplification ( 28) During past month NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725) FeedbackFromWhenOutstanding qualityBuyer: rstbird69 During past month NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725) Thank you.Buyer: frequency302 NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE Tube for McINTOSH MR Sony C37A Altec 21 (#232210245099) FEEDBACKFEEDBACKFROMWHEN5 stars. recommending this seller. premium tubes. as described. thank youNOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725)Buyer: johnbugg (1642)US $109.95Past month PRICE is for a MATCHED PAIR! NOS TUBE MUSEUM QUALITYWorld’s Most Sought After 6AU6CIFTE 6AU6 = EF94DOUBLE-FLAG MILITARYMADE IN FRANCE IN 1963 6AU6 = EF94BALANCED MATCHED PAIR LOW-NOISE AMPLITREX DIGITALLY TESTED NOS 6AU6 Tube for Sony C37A and Altec 21 …”Listening to these 1963 Cifte 6AU6 may be an unforgettable experience, just like a 1963 vintage Petrus. We have been fortunate to audition many different brands and vintages. That’s why tube enthusiasts come to The Tube Museum New York for advice. First we advise you to choose wisely, and excellently. If you’ve heard a bad tube, which is probably why you are here in the first place – you’re searching to find the BEST possible tube for your mic or tuner or preamp. A word of advice – purchase a NOS tube that is several decades old. Young Cifte’s are impressive, it ages fantastically and requires more time to break-in than other tubes in it’s culmination. Finally, we advise you to condition the tube with care, and give it time to develop in the mic or stereo gear or your precious tuner. Then you will have an opportunity to enjoy an unforgettable experience”… The MuseumPRICE is for a MATCHED PAIR! FeedbackFromWhenA+++ Seller! The tubes are every bit as great as I have read about! Thank you!Buyer: rustturnstogold ( 65) During past month NOS 6AU6 EF94 LOW-NOISE CIFTE FRANCE MATCHED PAIR McINTOSH MR Sony C37A Altec 21 (#292003808725)US $44.95 PICTURES OF THE ACTUAL NOS CIRCA 1963 TUBES YOU WILL RECEIVE 6AU6=EF94 / 6AU6A Sharp-Cutoff RF Pentode Recommended for: McIntosh Tuners Microphones – Schoeps CM61 mic -Sony C37A and Altec 21 – C800G Sony mic – C37A Sony mic – McIntosh Model MR FM Tuners: MA 6 Multiplex adapter for MR66 x 1 tube MR 55 Tube. AM-FM Mono. x 3 tubes MR 55A Tube. AM-FM Mono. x 4 tubes. MR 65 Tube. Mono. x 4 tubes MR 65B Tube. FM tuner Stereo. x 4 tubes MR 66 Tube. Mono/stereo. x 4 tubes MR 67 Tube FM tuner. Stereo. x 3 tubes MR 71 Tube. FM Stereo. x 4 tubes Change your TUNER or MICROPHONE into something better with Original Authentic CIFTE FRANCELOW-NOISE AMPLITREX TESTED 6AU6 = EF94 Tested on Amplitrex AT1000 Digital Tube Test System Tested on the Amplitrex AT-1000 with phenomenal results All tubes test 4,000 to 4,400 mA/V = 100% Select 1 for a matched pair (2 tubes) @ 4,000 & 4,000 EACH TUBESelect 2 for a matched quad (4 tubes) THIS TUBE HAS ZERO (0) uA leaks and zero (0) mA gasmicrophonic free Amplitrex Tested Tube*(4.40 mA/V = 4,400 GM or 100% factory specification) Actual tube was tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System CERTIFIED ULTRA-LOW-NOISE MUSEUM SPECIMENSTubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be. Terms of AuctionBid ONE (1) for for the matched balanced pair!Bid TWO (2) for the matched balanced QUAD!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. We do not low declare and we insure for full value.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 CONFIRMATIONADD JUST $3.99 FOR USPS PRIORITY MAIL 2-DAY IN USA!”EXPRESS SHIPPING” required for certain countries, (check first before you bid or we reserve the right to cancel your bid) TUBEMUSEUM NEW YORKVisit this seller’s eBay Store! NOTICE: All text & images © 2002-2022 Copyright © of The Tube Museum New York ©All Rights Reserved By entering this site you are agreeing to be bound by the terms of this agreement. All photographs and text appearing in the Tube Museum New York (TubeMuseumUSA) site(s) are the exclusive property of The Tube Museum New York © (except where stated otherwise) and are protected under international copyright laws and treaties. They are made available for your personal viewing enjoyment only. No images or unique text are within the Public Domain. The photographs and text may not be copied, reproduced, redistributed, manipulated, projected, used, or altered in any way without the prior express written permission of The Tube Museum New York ©. The unauthorized reproduction or distribution of a copyrighted work, pictures, and text is illegal. Criminal copyright infringement, including infringement without monetary gain, is investigated by eBay and appropriate action will be taken. 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Unbranded NOS 6AU6 6AU6A Vacuum Tube Tested
NOS. Tested on my Hickok 6000A and guaranteed for 30 days upon arrival.
4 Pcs. Vacuum Tubes 6AU6 Telefunken Zenith Airline, 1 unknown all tested
Tested good with Heathkit TT-1.
