TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va=90V Vg=-1,3V Ia=15mA HICKOK TV7D/U EV2-1030 B21 D min=50 (100%=83) EV7-6080 B21 D min=50 (100%=83) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) 7L8 MINIWatt RING GETTER F7A3 code 18,0mA/14,7mA 102/93 ASK FOR OTHER REFERENCES IF NEEDED. THE ENTIRE STOCK IS NOT ONLINE. I COMBINE SHIPPING. EUROPE COUNTRIES, YOU CAN ASK FOR MONDIAL RELAY DELIVERY SERVICE. ITS LESS EXPENSIVE THAN LAPOSTE, ASK BEFORE PAYING IF YOU CHOOSE THIS SERVICE. TUBES ARE GLASS MADE, THEY ARE FRAGILE. IF YOU SELECT A SIMPLE BUBBLE LETTER FOR THE DELIVERY, I WONT BE RESPONSIBLE IF THEY ARE BROKEN... YOU ASSUME ENTIRE CUSTOMS FEES.

Philips Holland E188CC Röhre miniwatt CCa E88CC Die Röhre ist augenscheinlich. gebraucht Siehe Bilder Ich verkaufe die Röhre ausdrücklich als ungetestet Und auf Grund des Alters ohne Garantie auf Funktion und schließe einen Umtausch aus. Für Versand außerhalb der EU erfragen Sie bitte die Versandkosten

Philips Holland E188CC Röhre miniwatt CCa E88CC Die Röhre ist augenscheinlich. gebraucht Siehe Bilder Ich verkaufe die Röhre ausdrücklich als ungetestet Und auf Grund des Alters ohne Garantie auf Funktion und schließe einen Umtausch aus. Für Versand außerhalb der EU erfragen Sie bitte die Versandkosten

TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va=90V Vg=-1,3V Ia=15mA HICKOK TV7D/U EV2-1030 B21 D min=50 (100%=83) EV7-6080 B21 D min=50 (100%=83) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) 7L8 MINIWatt RING GETTER F7A3 code 18,0mA/14,7mA 102/93 ASK FOR OTHER REFERENCES IF NEEDED. THE ENTIRE STOCK IS NOT ONLINE. I COMBINE SHIPPING. EUROPE COUNTRIES, YOU CAN ASK FOR MONDIAL RELAY DELIVERY SERVICE. ITS LESS EXPENSIVE THAN LAPOSTE, ASK BEFORE PAYING IF YOU CHOOSE THIS SERVICE. TUBES ARE GLASS MADE, THEY ARE FRAGILE. IF YOU SELECT A SIMPLE BUBBLE LETTER FOR THE DELIVERY, I WONT BE RESPONSIBLE IF THEY ARE BROKEN... YOU ASSUME ENTIRE CUSTOMS FEES.

TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va=90V Vg=-1,3V Ia=15mA HICKOK TV7D/U EV2-1030 B21 D min=50 (100%=83) EV7-6080 B21 D min=50 (100%=83) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) 7L8 MINIWatt RING GETTER F7A3 code 17,0mA/16,8mA 96/96 ASK FOR OTHER REFERENCES IF NEEDED. THE ENTIRE STOCK IS NOT ONLINE. I COMBINE SHIPPING. EUROPE COUNTRIES, YOU CAN ASK FOR MONDIAL RELAY DELIVERY SERVICE. ITS LESS EXPENSIVE THAN LAPOSTE, ASK BEFORE PAYING IF YOU CHOOSE THIS SERVICE. TUBES ARE GLASS MADE, THEY ARE FRAGILE. IF YOU SELECT A SIMPLE BUBBLE LETTER FOR THE DELIVERY, I WONT BE RESPONSIBLE IF THEY ARE BROKEN... YOU ASSUME ENTIRE CUSTOMS FEES.

Philips Holland E188CC Röhre miniwatt CCa E88CC Die Röhre ist augenscheinlich. gebraucht Siehe Bilder Ich verkaufe die Röhre ausdrücklich als ungetestet Und auf Grund des Alters ohne Garantie auf Funktion und schließe einen Umtausch aus. Für Versand außerhalb der EU erfragen Sie bitte die Versandkosten

Philips Holland E188CC Röhre miniwatt CCa E88CC Die Röhre ist augenscheinlich. gebraucht Siehe Bilder Ich verkaufe die Röhre ausdrücklich als ungetestet Und auf Grund des Alters ohne Garantie auf Funktion und schließe einen Umtausch aus. Für Versand außerhalb der EU erfragen Sie bitte die Versandkosten

TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va=90V Vg=-1,3V Ia=15mA HICKOK TV7D/U EV2-1030 B21 D min=50 (100%=83) EV7-6080 B21 D min=50 (100%=83) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) 7L8 MINIWatt RING GETTER F7A3 code 18,0mA/14,7mA 102/93 ASK FOR OTHER REFERENCES IF NEEDED. THE ENTIRE STOCK IS NOT ONLINE. I COMBINE SHIPPING. EUROPE COUNTRIES, YOU CAN ASK FOR MONDIAL RELAY DELIVERY SERVICE. ITS LESS EXPENSIVE THAN LAPOSTE, ASK BEFORE PAYING IF YOU CHOOSE THIS SERVICE. TUBES ARE GLASS MADE, THEY ARE FRAGILE. IF YOU SELECT A SIMPLE BUBBLE LETTER FOR THE DELIVERY, I WONT BE RESPONSIBLE IF THEY ARE BROKEN... YOU ASSUME ENTIRE CUSTOMS FEES.

TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va=90V Vg=-1,3V Ia=15mA HICKOK TV7D/U EV2-1030 B21 D min=50 (100%=83) EV7-6080 B21 D min=50 (100%=83) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) 7L8 MINIWatt RING GETTER F7A3 code 17,0mA/16,8mA 96/96 ASK FOR OTHER REFERENCES IF NEEDED. THE ENTIRE STOCK IS NOT ONLINE. I COMBINE SHIPPING. EUROPE COUNTRIES, YOU CAN ASK FOR MONDIAL RELAY DELIVERY SERVICE. ITS LESS EXPENSIVE THAN LAPOSTE, ASK BEFORE PAYING IF YOU CHOOSE THIS SERVICE. TUBES ARE GLASS MADE, THEY ARE FRAGILE. IF YOU SELECT A SIMPLE BUBBLE LETTER FOR THE DELIVERY, I WONT BE RESPONSIBLE IF THEY ARE BROKEN... YOU ASSUME ENTIRE CUSTOMS FEES.

Philips Miniwatt matched pair E88CC tubes Special Quality SQ grey shield, O-getter, goldpin Getestet mit RoeTest V10 IA: Tube1: 12,7 / 12,3 mA Tube2:12,8 / 12,5mA (100%-15/15mA) nach 19 UStG kann die MWST nicht ausgewiesen werden Insured Shipping Worldwide

Drei Rhren vom Typ Philips Miniwatt aus Kellerfund. Mangels Testequipment leider ungetestet!

2 x E 88 CC Philips Miniwatt SQ - same code - tested on Neuberger RPM 370 Tube 1 - (17,5 mA/17,0 mA) code - 7LB delta6 B1 Tube 2 - (16,0 mA/16,5 mA) code - 7LB delta6 B1 100% = (15,0 mA) Versandkosten/Shipment cost - Germany - EUR 5,49 (DHL-Paket) / EU - EUR 12,99 (DHL - registered airmail) Europe - EUR 17,49 (DHL - registered airmail) Worldwide - EUR 21,99 (DHL - registered airmail) No shipment to Russia and Ukraine Privatverkauf - Keine Garantie - Keine Rücknahme. Private sale - no return - no refund. Please note - the auction price do not include any import taxes or duty. so you need to pay the V.A.T. or GST by yourself. no add. cost for combine shipping

Perfect matched pair of vintage Philips SQ E88CC audio tubes - Made in Holland - 1965 - Same date code - Very Rare Tube Summary The beauty, the legend, the classic, the Special Quality(SQ) - this is the super tube from Heerlens high echelon that doesnt break your bank. Known for their superb musicality and ultra low noise, thanks to Philips proprietary SQ design, these tubes remain among audiophiles top choices for serious listening. Sound Characteristics Immediately appealing is the super smooth highs offered by these tubes with lots of open air. The overall tonality of SQ is warm, musical and euphonic. The midrange displays some secondary octave nuances, which is very unique and can hardly be found even among the top-end German tubes. Similar to the Telefunken tubes, the SQs can create infinite levels of harmonic depth and a liquid sonic texture without altering the musicality of the sound. The bass on these is the clear winner of the Heerlen tubes family: articulate, accurate, deep, textured, full-bodied and powerful. The sound stage is wide and structured - it feels the dimensions of the sound shape are clearly defined no matter how it moves. Vocal representation on the SQs is close to Mitcham and Blackburn Mullard tubes in terms of warmth, sweetness and texture, making them great alternatives to Mullards as the best vocals tube. But what truly shines on SQ tubes, especially the ones from the 1960s like this pair, is their magic in portraying piano music: creamy smooth, richly colored, realistic and intimate. For many audiophiles (incl. ourselves), theyre the go-to tube for piano sound. Listening to Claudio Arraus Beethoven Complete Piano Sonatas on these tubes should be on your bucket list if you happen to be into classical piano music, but even if you are not, these tubes superb interpretation of piano music from any genre will amaze you. The ultra low noise on SQs also sets them apart from most of the high-end tubes. They dont just compete with Telefunken tubes in low noise; theyre known for being a long-term leader in low noise. As a result, you get superb detail and clarity from these tubes as well. 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: Focal Clear 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 Super Strong NOS (120%+ nominal mutual conductance) on a Mercury 2000 tube tester with the following result (mutual conductance in both uMhos and percentage of nominal value): Tube 1: 14,900/15,000 Tube 2: 14,900/15,000 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. Appearance & cosmetic condition Besides the world-class sound characteristics, we still treasure this pair for its near pristine cosmetic condition given the tubes age - over 95% of the paint is still intact on both tubes, and the identical date code of the Heerlen factory etched in glass is perfectly visible on both tubes: delta 5L2 (delta = Heerlen, 5 = 1965, L = Feb, 2 = 4th week of the month) Shipping Policy - Ship worldwide! Flat-rate shipping (USPS Ground Advantage) within the US. - Same business day handling. Orders are scheduled to ship within 24 - 48 hours of complete payment and in most cases they are posted on the same business day or in the AM the next business day. - We combine shipping for multiple purchases. Please request invoice for total before making payment or receive shipping credit after order has shipped. - Customers outside the US please pay extra attention: International shipping is through USPS Ground Advantage International by default. Its the least expensive option and includes $100 insurance but may take longer than other carriers. If you prefer to use a different carrier or add extra insurance to your order 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. We have seen it all and we know what youre up to. 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.

2x E88CC Philips / Tesla / Miniwatt SQ goldpins. Die Rö. sind unbenutzt biete sie aber als gebraucht an 1. Rö. erste System 100% zweite System 99% 2. Rö. erste System 1,7 mA zweite System 2,0 mA Privatverkauf: keine Garantie, Gewährleistung oder Rücknahme

2 hard to find comms grade special edition limited run miniwatt sq star! e88cc gold pin tubeslegendary sound stage! premium sought after very early edition heerlen house imagingunparalleled musical transparency, superb 6dj8/6922 upgrade for mic amp stereo vocals instru+audio grade w/ proprietary cali refurb process, exclusive import / collectible typesfirst editions to replace the sometimes harsh dgetters?!? better versatility stepped mids!pristine balance matched 101/101~102/102 % mutual gm pair fully testedships fast well packed worldwide w/ old or new or plain tube boxes ~authentic vintage audiophile collectibles by cali acoustics~ (nos tubes require up to 100+ hours to truly settle in, otherwise you are likely buying used)(be aware of relabelers/reprinters especially cca!) current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 verified apps include: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 mono blocks + many more!

2x E88CC Philips / Tesla / Miniwatt SQ goldpins. Die Rö. sind unbenutzt biete sie aber als gebraucht an 1. Rö. erste System 100% zweite System 99% 2. Rö. erste System 1,7 mA zweite System 2,0 mA Privatverkauf: keine Garantie, Gewährleistung oder Rücknahme

2 grail miniwatt philips dgetter e88cc gold pin audio tubes, very rare sound curvelegendary warmth / euphony bass stage / detailed clarity special midband depth100/100 % mutual gm and audio grade phono ready / proprietary cali refurb processeddate codes visible w/ real labels / ships worldwide well packed~authentic hifidelity audio collectibles by cali acoustics~ (be aware of relabelers!) current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 apps include: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 / caliacoustics insta

2x E88CC Philips / Tesla / Miniwatt SQ goldpins. Die Rö. sind unbenutzt biete sie aber als gebraucht an 1. Rö. erste System 100% zweite System 99% 2. Rö. erste System 1,7 mA zweite System 2,0 mA Privatverkauf: keine Garantie, Gewährleistung oder Rücknahme

2 hard to find comms grade special edition limited run miniwatt sq star e88cc gold pin tubeslegendary sound stage! premium grade sought after by audiophiles, rarest early editionsbalance matched 101/101 ~ 102/102 % mutual gm / audio grade / ships fast! worldwide ~cali acoustics~~hifidelity tone vintage vacuum tube pro audio warm bright lofi hifi~ 6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 / ecc83 ecc82 ecc816bq5 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 / caliacoustics insta

old stock hifidelity 7308 sylvania audio tubelegendary realistic transparent tone w/ more bass reach over 6922/6dj8 designnos 110/102 % gm, ships fast w/ old box ~cali acoustics~~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) ~ 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 tube 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~

2x E88CC Philips / Tesla / Miniwatt SQ goldpins. Die Rö. sind unbenutzt biete sie aber als gebraucht an 1. Rö. erste System 100% zweite System 99% 2. Rö. erste System 1,7 mA zweite System 2,0 mA

Perfect balanced Philips SQ E88CC preamp tube - Made in Holland - 1961 - Very Rare Note: If you need a pair of early 1960s Philips SQ E88CC tubes instead of a single tube, please see our listing of 1962 Philips SQ E88CC Tubes Matched Pair. Tube Summary The beauty, the legend, the classic, the Special Quality(SQ) - this is the super tube from Heerlens high echelon that doesnt break your bank. Known for their superb musicality and ultra low noise, thanks to Philips proprietary SQ design, these tubes remain among audiophiles top choices for serious listening. Sound Characteristics Immediately appealing is the super smooth highs offered by these tubes with lots of open air. The overall tonality of SQ is warm, musical and euphonic. The midrange displays some secondary octave nuances, which is very unique and can hardly be found even among the top-end German tubes. Similar to the Telefunken tubes, the SQs can create infinite levels of harmonic depth and a liquid sonic texture without altering the musicality of the sound. The bass on these is the clear winner of the Heerlen tubes family: articulate, accurate, deep, textured, full-bodied and powerful. The sound stage is wide and structured - it feels the dimensions of the sound shape are clearly defined no matter how it moves. Vocal representation on the SQs is close to Mitcham and Blackburn Mullard tubes in terms of warmth, sweetness and texture, making them great alternatives to Mullards as the best vocals tube. But what truly shines on SQ tubes, especially the ones from the 1960s like this tube, is their magic in portraying piano music: creamy smooth, richly colored, realistic and intimate. For many audiophiles (incl. ourselves), theyre the go-to tube for piano sound. Listening to Claudio Arraus Beethoven Complete Piano Sonatas on these tubes should be on your bucket list if you happen to be into classical piano music, but even if you are not, these tubes superb interpretation of piano music from any genre will amaze you. The ultra low noise on SQs also sets them apart from most of the high-end tubes. They dont just compete with Telefunken tubes in low noise; theyre known for being a long-term leader in low noise. As a result, you get superb detail and clarity from these tubes as well. Professional Tube Testing The tube tested Strong OS (110%+ nominal mutual conductance) on a Mercury 2000 tube tester with the following result (mutual conductance in uMhos): 14,700/14,900 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. Appearance & cosmetic condition Besides the world-class sound characteristics, we still treasure this tube for its near pristine cosmetic condition given the tubes age - over 95% of the paint is still intact, and the date code of the Heerlen factory etched on glass is perfectly visible: delta 1G5 (delta = Heerlen, 1 = 1961, G = July, 5 = 5th week of the month) 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 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 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, 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. We have already reported several abusers to eBay and we are determined to continue working with eBay to help rid of these unprofessional, unjustified, unkind, unfair and unacceptable behaviors that are detrimental to eBay, the vintage tubes market and the audiophile community.

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