Perfect matched & balanced pair of vintage Telefunken E88CC/6922 Audio Tubes - Ulm 1963 - Strong NOS Tubes Summary Behold the illumination at night, write down how your music sounds the moment these tubes start glowing and keep your notes forever. The finest in the fleet, Telefunken E88CC is unequivocally the supreme commander of the entire E88CC/6922 tubes family. This gorgeous pair is from the early 1960s Ulm, Germany production - the most sought after Telefunken sound. Sound Characteristics Like any other Telefunken tubes, these E88CCs are very pleasant to listen to: liquid, euphonic, with a slightly warmer midrange than many other German tubes, which makes your sound experience smooth and non-fatiguing, and all that happens on a unbelievably realistic holographic sound stage, where everything feels bigger, wider and taller. Sound texture can be felt through infinite levels of details, laying on top of each other, both in depth and in width. So your quest for superb sound clarity can end right here. Lastly, it never gets old to say that no other brand is even close to these when it comes to low noise - Telefunken tubes are extremely quiet just as legend has it. At this level of the game, the only possible upgrade path from these tubes is the 45° angled support version of Telefunken E88CC, of which we do have a wonderful pair from the same year listed here: https://www.ebay.com/itm/266252618250 Appearance & cosmetic condition Beside the world-class sound characteristics, we treasure this pair also because the near pristine condition of inscriptions on the tubes. Ulm factory date codes are 100% visible on both tubes: U8003204H (U = Ulm, Germany, 3 = 1963) U620321?? (U = Ulm, Germany, 3 = 1963) And of course the diamond mark on bottom - the symbol of the best sound one can ever find on E88CCs. Professional Sound Evaluation The pair worked wonderfully and sounded terrific in our professional studio setup for monitoring. - Input: Cambridge Audio CXC V2 dedicated CD transport + Schiit Audio Bifrost 2 Multibit DAC - Amplification: Liquid Platinum Tube Amplifier by Alex Cavalli - Output: Clear Focal MG Pro open-back headphones Our full tube sound review was written 100% based on the actual listening experience while this pair of tubes were running in the system described above. Professional Tube Testing Both tubes tested Strong NOS (110%+ nominal mutual conductance) on a Mercury 2000 tube tester with the following result (mutual conductance in uMhos): Tube 1: 13,800/14,200 Tube 2: 13,900/13,900 Good tubes start around 7000 and new tubes (incl. NOS/NIB) 12,500 - 13,000, and Mercury 2000s rated mutual conductance (nominal) for new tubes is 12,500. Test result can also be seen in the pictures. In case you wonder what all these numbers would mean to your sound experience, its actually quite straightforward: mutual conductance directly translates to a tubes ability to amplify sound so the higher the numbers the stronger. Shipping - Same business day handling. Orders placed by 2:00PM US Pacific Time on weekdays are posted on the same day, otherwise the next business day. - Ship worldwide! Flat-rate shipping within the US. Combined shipping available - request invoice for total before making payment or receive shipping credit after order ships. - Customers outside the US please pay extra attention: Delivery will be through eBay International Shipping by default. Its the least expensive option and customs declaration is automated but it may take longer than other carriers. If you prefer to use a different carrier please contact us before you buy so we can get you the correct shipping rates. Return & Exchange First of all, returns/exchanges are acceptable as long as you are reasonable. Soundlumia sets extremely high standard on the quality of products we deliver. Tubes we sell are guaranteed to work because we run professional tests and sound evaluation before they are even approved for listing. However, sound experience is a very subjective thing and its not uncommon to run into combability issues due to different amp designs, please contact us to work things out before submitting returns or opening a defective or item not working case on eBay. We would really appreciate your respect to the professional work we have done (sourcing, testing & matching tubes, evaluating tube sound and sharing tube sound review with the world through this listing) to make these wonderful vintage tubes available to you at reasonable prices. Secondly, if you are a tube roller looking to game the return system, Number One STOP. Soundlumias founder is a sound professional who has advised orchestras and music studios in sound production in the USA for over two decades, so knowing sound is the minimum skill requirement of our team. We are experts in sound and equipment - tubes, headphones, speakers, DACs, amps, turntables, CD Players - you name it. So no tricks here please. Abusive behaviors will be reported to eBay immediately and negative feedback will be left to your account - thats also guaranteed.

1 x reference grade grail e88cc telefunken audiophile tube, balance matchedhifidelity layered series! holographic tone natural warm presence / pro siemens alternativenos/new mutual gm 110/120~115/114~120/120~125/126 % availableold stock collectible w/ no mica flashing! = always give 100+ hours for honest break in ~cali acoustics~~see our other listings for alternate listening experiences! bid/buy/best offer~ ~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram (live) / caliacoustics.com (soon!)~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudio bhk +more apps!~

DO YOU REMEMBER ME? I´M ANTONIO FROM MY ANOTHER SHOP AD1ELECTRONICS... This is our another account.... ;-) Look at our votes in our another Store ... 11 TUBES TESTED GOOD ON TV7DU PLEASE LOOK THE PHOTO!!!!!!WILL SHIP TO WORLDWIDE!! SALE WHAT YOU SEE IN THE PICTURES. NO RETURNS ALLOWED. COMBINE SHIPPING. FOR ANY QUESTIONS, CONTACT US.Due to the fact that by certified mail for the United States and Canada, the tracking and shipping update is very slow and was sent out of time, the shipment from now on will be sent through a Fedex affiliate, so the shipment It is more expensive. But it meets the deadlines and maintains a tracking update, insured the content and delivered with signature to the recipient.

1 x reference grade grail e88cc telefunken audiophile tube, balance matchedhifidelity precision mid series! smooth natural response popular tone / warm siemens altv.nos/new mutual gm 101/98% 106/106% 110/114% 130/130% availableold stock collectibles w/ no mica flashing! = always give 100+ hours for honest break in ~cali acoustics~~see our other listings for alternate listening experiences! bid/buy/best offer~ ~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram (live) / caliacoustics.com (soon!)~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudio bhk +more apps!~

2 balance matched telefunken e188cc germany diamond <> audiophile tubes! legendary tonehifidelity presence flat response superb bass! thick musical layers depending on positionrare premium collectibles! 7308 equiv e88cc/6922 upgrade more rugged noise threshold by designnos mutual gm pair! 110/120 ~ 118/116 % gm (100%+ nos/65+good) w/ telefunken boxes ~cali acoustics~~see our other listings for alternate listening positions, buy/bid/best offer!~ vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hificaliacoustics instagram (active) / caliacoustics.com (soon!) ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more apps~

4 reference grade grail e88cc telefunken <> audiophile tubes / balance matched same gettershifidelity precision mid series! smooth natural response warm bass curve flat mid legend101/98 ~ 106/106 ~ 110/114 ~ 130/130 % mutual gm / audio grade quad / ships fast ~see our other telefunk 6dj8/7dj8 listings for alternate listening experiences! bid/buy/best offer~ ~vintage hifidelity tone vacuum tube pro audio warm bright lofi hifi~caliacoustics instagram (active) / caliacoustics.com (soon!)~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudio bhk +more 6dj8 apps!~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~

4 reference grade grail e88cc telefunken <> audiophile tubes / balance matched same gettershifidelity precision mid series! smooth natural response warm bass curve flat mid legend101/98 ~ 106/106 ~ 110/114 ~ 130/130 % mutual gm / audio grade quad / ships fast ~see our other telefunk 6dj8/7dj8 listings for alternate listening experiences! bid/buy/best offer~ ~vintage hifidelity tone vacuum tube pro audio warm bright lofi hifi~caliacoustics instagram (active) / caliacoustics.com (soon!)~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudio bhk +more 6dj8 apps!~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~

DO YOU REMEMBER ME? I´M ANTONIO FROM MY ANOTHER SHOP AD1ELECTRONICS... This is our another account.... ;-) Look at our votes in our another Store ... 6 TUBES TESTED GOOD ON TV7DU PLEASE LOOK THE PHOTO!!!!!!WILL SHIP TO WORLDWIDE!! SALE WHAT YOU SEE IN THE PICTURES. NO RETURNS ALLOWED. COMBINE SHIPPING. FOR ANY QUESTIONS, CONTACT US.Due to the fact that by certified mail for the United States and Canada, the tracking and shipping update is very slow and was sent out of time, the shipment from now on will be sent through a Fedex affiliate, so the shipment It is more expensive. But it meets the deadlines and maintains a tracking update, insured the content and delivered with signature to the recipient.

2 reference grade grail e88cc telefunken audiophile tubes, balance matched + same getterhifidelity doubler series! holographic layering popular natural presence / siemens alternative100% = nos/new mutual gm 115/114~120/120 % and audio grade circuit readyold stock collectibles w/ no mica flashing! = always give 100+ hours for honest break in ~cali acoustics~~see our other listings for alternate listening experiences! bid/buy/best offer~ ~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram (live) / caliacoustics.com (soon!)~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudio bhk +more apps!~

2 reference grade grail e88cc telefunken audiophile tubes, balance matched 1968/1965 editionshifidelity tone holographic layering popular natural presence / pro siemens alternative100% = nos/new mutual gm pristine 130/130~125/126 % and audio grade circuit readyold stock collectibles w/ no mica flashing! = always give 100+ hours for honest break in ~cali acoustics~~see our other listings for alternate listening experiences! bid/buy/best offer~ ~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram (live) / caliacoustics.com (soon!)~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudio bhk +more apps!~

2x Telefunken E88CC nahezu identische Prüfwerte, siehe Originalfotos gleicher Produktionscode: U6107503K hergestellt in Ulm, 16.05.1967 <> Raute im Bodendie Röhren wurden nicht gereinigt, um die Beschriftung zu erhalten 2ea. Telefunken E88CC almost identical test results same code U6107503K made in Ulm, Germany, 16.05.1967<> diamond bottom the tubes were not cleaned to preserve the lettering

2x Telefunken E88CC nahezu identische Prüfwerte, siehe Originalfotos gleicher Produktionscode: U6107503K hergestellt in Ulm, 16.05.1967 <> Raute im Bodendie Röhren wurden nicht gereinigt, um die Beschriftung zu erhalten 2ea. Telefunken E88CC almost identical test results same code U6107503K made in Ulm, Germany, 16.05.1967<> diamond bottom the tubes were not cleaned to preserve the lettering

Perfectly balanced vintage Telefunken E88CC/6922 Tube - Ulm 1961 - Super strong NOS Note: If you need a pair of early 1960s Telefunken E88CC tubes instead of a single tube, please see our listing of 1962s Matched Pair of Telefunken E88CC Tubes. Tube Summary Behold the illumination at night, write down how your music sounds the moment these tubes start glowing and keep your notes forever. The finest in the fleet, Telefunken E88CC is unequivocally the supreme commander of the entire E88CC/6922 tubes family. This gorgeous tube is from the Ulm, Germany production - the most sought after Telefunken sound. Sound Qualities Like any other Telefunken tubes, these E88CCs are very pleasant to listen to: liquid, euphonic, with a slightly warmer midrange than many other German tubes, which makes your sound experience smooth and non-fatiguing, and all that happens on a unbelievably realistic holographic sound stage, where everything feels bigger, wider and taller. Sound texture can be felt through infinite levels of details, laying on top of each other, both in depth and in width. So your quest for superb sound clarity can end right here. Lastly, it never gets old to say that no other brand is even close to these when it comes to low noise - Telefunken tubes are extremely quiet just as legend has it. At this level of the game, the only possible upgrade path from these tubes is the 45° angled support version of Telefunken E88CC, of which we do have a wonderful pair from the same year listed here: https://www.ebay.com/itm/266252618250 Appearance & cosmetic condition Beside the world-class sound characteristics, we treasure this tube also because of its excellent cosmetic condition - over 95% of the paint is still intact and the Ulm factory date code is perfectly visible: U6101301M (U = Ulm, Germany, 1 = 1961) And of course the diamond mark on bottom - the symbol of the best sound one can ever find on E88CCs. Professional Tube Testing The tube tested Super Strong NOS (120%+ nominal mutual conductance) and perfectly balanced on a Mercury 2000 tube tester with the following result (mutual conductance in uMhos): 14,900/14,900. Good tubes start at 7000 and new tubes (incl. NOS/NIB) 12,500 - 13,000, and the Mercury 2000s rated mutual conductance (nominal) for new tubes is 12,500. Test result can also be seen in the pictures. In case you wonder what all these numbers mean to your sound experience, its actually quite straightforward: mutual conductance directly translates to a tubes ability to amplify sound so the higher the numbers the stronger. Shipping Policy - Ship worldwide! Flat-rate shipping (USPS First-Class) within the US. - Same business day handling. Orders placed by 2:00PM US Pacific Time on weekdays are posted on the same day, otherwise the next business day. - Combined shipping available. Please request invoice for total before making payment or receive shipping credit after order ships. - Customers outside the US please pay extra attention: International shipping is through USPS First-Class International by default. Its the least expensive option (even cheaper than eBay International Shipping) but may take longer than other carriers. If you prefer to use a different carrier please contact us before you buy so we can get you the correct shipping rates. Return Policy - Please READ carefully First of all, returns are acceptable as long as you are reasonable. Soundlumia sets extremely high quality standard for the products we deliver. Tubes we sell are guaranteed to work because we run professional tests and sound evaluation before they are approved for listing AND before we ship them to customers. So the defective item case doesnt exist and please do not bother trying - this type of returns will NOT be accepted without proof that tubes do not work and we will open a dispute with eBay. Sound experience is a very subjective thing, and lets be real its not that easy to run into compatibility issues between amps and tubes (so that one wont fly, either.) Please contact us to work things out before submitting return requests claiming item is defective or item not as described. We would really appreciate your respect to the professional work we have done (sourcing, testing & matching tubes, evaluating tube sound, sharing our sound experience with you, packing and shipping) to make these wonderful vintage tubes available to you at reasonable prices. Secondly, if you are a tube roller looking to game the return system, Number One STOP. Soundlumias founder is a seasoned sound professional who has advised orchestras and music studios in sound production in USA for over two decades, and knowing sound is the minimum skill requirement of our team. No tricks here please. Abusive behaviors will be reported to eBay immediately and negative feedback will be left to your account - thats guaranteed. We have already reported several abusers and eBay has ruled in our favor the dispute cases. We are more determined than ever to continue working with eBay to help rid of these unprofessional, unjustified, unkind, unfair and unacceptable abuses that are detrimental to the eBay marketplace, the vintage tubes market and the audiophile community.

1 Telefunken tube E88CC 6922with <> diamond on bottom45° getter supportTest result gm test : gm test very high with: 12,6 + 13,0mA/V

2 balance matched telefunken e188cc germany diamond <> audiophile tubes! legendary tonehifidelity presence flat response superb bass! thick musical layers depending on positionrare premium collectibles! 7308 equiv e88cc/6922 upgrade more rugged noise threshold by designnos mutual gm pair! 110/120 ~ 118/116 % gm (100%+ nos/65+good) w/ telefunken boxes ~cali acoustics~~see our other listings for alternate listening positions, buy/bid/best offer!~ vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hificaliacoustics instagram (active) / caliacoustics.com (soon!) ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more apps~

5 balance matched telefunken e88cc germany diamond <> audiophile tubes! legendary tone typesnatural mid response! smooth hifidelity presence warm/clear/layered depending on positionrare special edition collectibles w/ lowest noise threshold / proprietary cali refurb / audio gradenos mutual gm set! 101/98~106/106~110/110~115/114~125/126 % gm (100%+ nos/65+good) ~cali acoustics~~see our other listings for alternate listening positions, buy/bid/best offer!~ vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hificaliacoustics instagram (active) / caliacoustics.com (soon!) ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more apps~

2 reference grade grail e88cc telefunken audiophile tubes, balance matched + same getterhifidelity doubler series! holographic layering popular natural presence / siemens alternative100% = nos/new mutual gm 115/114~120/120 % and audio grade circuit readyold stock collectibles w/ no mica flashing! = always give 100+ hours for honest break in ~cali acoustics~~see our other listings for alternate listening experiences! bid/buy/best offer~ ~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram (live) / caliacoustics.com (soon!)~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudio bhk +more apps!~

1 Telefunken tube E88CC 6922with <> diamond on bottomVery good emission tubeTest result gm test : tests gm 12,9 + 12,1mA/V (NOS = 12,5mA )

Tubes are only for doing tests or try for reactivating.gm is really not good 2 Telefunken tubes E88CC 6922with <> diamond on bottomfat getter halo gold grid bolts 45° getter supportTest result gm test : all parts tests gm 8.....9mA/V (NOS = 12,5mA TELEFUNKEN data book, usable from 9,0mA/V and higher)

2 authentic telefunken germany 7dj8 audio tubes <> popular 6dj8 altv! a bit more forward stagehifidelity layered tone natural flat holographic response legendary clarity / clear presence!6922/e88cc plugin sub w/ more linear head room / upper register and low end kickmatch balanced 108/104~108/107 % mutual gm (100+nos/65+good) ~see our other listings for alternate listening positions, bid/buy/best offer~~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram / caliacoustics dot com (soon!)~~cali acoustics~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca ~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81 ~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34 (new!) ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more hifidelity apps~

center stage grail rated audio ~ 2 telefunken e88cc diamond <> germany w/ boxeshifidelity layered tone natural flat holographic response warm mid presence famed precision!vintage collectibles! legendary transparent imaging for vocals/instruments preamps tubemics+audio grade and full gm test balance 100/104~125/126 % mutual gm (65+good/100+nos)pristine tone roller pair! 62/68 smooth/ribbed types, ships well packed worldwide ~see our other telefunken listings for alternate listening positions! best offer enabled~~cali acoustics~ ~stereos preamps tubemics vocals instruments lofi/hifi and more warm/bright vintage tone ecc88 e88cc 6922 6dj8 apps~ ~rode mics woo audio liquid platinum aesthetix cat audioresearch arc ear herron decco lector manley echo horizons blue mics conrad frontiers pathos vac and more~

Matched Pair E288CC Siemens Munich grey shield > gold PinSiemens Codes,Roe-V-9 testet > 2x >> 30/30 mA = Strong !30mA = NOS/NEW in BOX 2x > 100%Sie Bieten auf 2. Stück >> It offering on 2.st piece see they on my ** me side ** for more info > ROE-TEST

old stock telefunken e88cc gold pin audiophile tube <> hifidelity tone authentic germanylegendary natural response, popular clarity for mics amps stereos vocals instruments+101/98 % mutual gm (100+nos) ~see our other listings for alternate listening positions! bid/buy/best offer~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hificaliacoustics instagram (active) / caliacoustics.com (soon!)~cali acoustics~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca ~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81 ~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34 (new!) ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more apps~

Siemens E88CC/6922 Audio Tube - Telefunken label - West Germany 1968 - Strong NOS Note: If you need a pair of late 1960s Siemens E88CC tubes instead, please see our listing of 1969/1970 Siemens E88CC/6922 Tubes Matched Pair here: https://www.ebay.com/itm/266274273460 Tube Summary Stronger than time! This is the classic E88CC/6922 beauty admired by audiophiles for over 50 years and will still be their top choice in the next 50 years. Look no further if you are seeking the greatest E88CC/6922 tube sound. Sound Characteristics The airy and transparent sound produced by these vintage Siemens tubes has been unrivaled even to this day. The magically extended yet never tizzy highs, coupled with the slightly focused upper mid-range, deliver a clear presentation of the entire frequency spectrum, which is completed by the precise and deep controlled bass. And the most defining sound characteristic of Siemens E88CC tubes is their ability to retrieve the deepest levels of detail in sound, and these hidden sonic layers can go a long way to revealing the subtle ambient clues that help build a truly 3D holographic presentation. Appearance & Cosmetic condition Beside the world-class sound characteristics, we treasure this pair because of its pristine condition - nearly 100% of the paint is intact, and the date code stamped on the metal tag inside the glass is perfectly visible: A4 8G (A4 = E88CC, 8 = 1968, G = July.) Professional Tube Testing The tube tested Strong NOS (110%+ nominal mutual conductance) on a Mercury 2000 tube tester with the following result (mutual conductance in uMhos): 13,300/14,000 Good tubes start around 7000 and new tubes (incl. NOS/NIB) 12,500 - 13,000, and Mercury 2000s rated mutual conductance (nominal) for new tubes is 12,500. Test result can also be seen in the pictures. In case you wonder what all these numbers would mean to your sound experience, its actually quite straightforward: mutual conductance directly translates to a tubes ability to amplify sound so the higher the numbers the stronger. Shipping Policy - Customers outside the US please pay extra attention - Same business day handling. Orders placed by 2:00PM US Pacific Time on weekdays are posted on the same day, otherwise the next business day. - Ship worldwide! Flat-rate shipping within the US. Combined shipping available - request invoice for total before making payment or receive shipping credit after order ships. - International shipping is through eBay International Shipping program by default. Its the least expensive option and customs declaration is automated but it may take longer than other carriers. If you prefer to use a different carrier please contact us before you buy so we can get you the correct shipping rates. Return Policy - Please READ carefully First of all, returns are acceptable as long as you are reasonable. Soundlumia sets extremely high standard on the quality of products we deliver. Tubes we sell are guaranteed to work because we run professional tests and sound evaluation before they are approved for listing. However, sound experience is a very subjective thing and its not uncommon to run into combability issues due to different amp designs, please contact us to work things out before submitting returns or opening a item not as described case on eBay. We would really appreciate your respect to the professional work we have done (sourcing, testing & matching tubes, evaluating tube sound and sharing our sound experience with the world through this listing) to make these wonderful vintage tubes available to you at reasonable prices. Secondly, if you are a tube roller looking to game the return system, Number One STOP. Soundlumias founder is a sound professional who has advised orchestras and music studios in sound production in the USA for over two decades, so knowing sound is the minimum skill requirement of our team. We are experts in sound and equipment - tubes, headphones, speakers, DACs, amps, turntables, CD Players - you name it. So no tricks here please. Abusive behaviors will be reported to eBay immediately and negative feedback will be left to your account - thats also guaranteed.