Quad VA-One, Röhren Vollverstärker Verkaufe hier meinen kompakten und feinen Röhrenverstärker. Das Gerät wurde nur sehr selten genutzt. Die Röhren haben sicher noch nicht viel Lebenszeit eingebüßt. Das Gerät ist technisch einwandfrei. Die Oberfläche des Gerätes ist auch in gutem Zustand. Nur minimalste Nutzungserscheinungen. Farbe: Lancaster Grey. Kaufdatum 08/2018. Neupreis: 1699 €, Rechnung liegt bei.Alles Zubehör wie beim Kauf ist dabei, siehe Fotos. Beschreibung:Mit einer Grundfläche von nur 18 x 33 cm ist der VA-One für einen Röhrenverstärker angenehm kompakt - klein genug, um bequem auf einem Schreibtisch, Tisch oder Regal Platz zu finden. Dennoch steckt in ihm eine Fülle von Hochleistungs-Audiotechnologie: Ein hochauflösender DAC (Digital-Analog-Wandler) verbindet sich mit röhrenbasierten Vorverstärker- und Endstufenschaltungen, um eine üppige Klangqualität von einer Vielzahl von Wiedergabegeräten zu liefern - von Smartphones und Tablets über PCs und Macs bis hin zu HiFi-Quellkomponenten. Der VA-One verfügt über eine beeindruckende Anzahl von Röhren für ein derart kompaktes Gerät (insgesamt sieben). Die Vorverstärker-Sektion enthält eine hochohmige ECC83-Triode, die einen ECC82-Doppeltriodentreiber und eine Phasensplitterstufe speist. Die Ausgangsstufe verwendet zwei EL84-Pentoden pro Kanal in einer Push-Pull-Konfiguration, die 2 x 15 W liefern – eine ausreichende Leistung, um effiziente moderne Lautsprecher auf hohe Lautstärkepegel zu bringen und gleichzeitig die üppige Klangqualität beizubehalten, die sich aus der röhrenbasierten Topologie des Verstärkers ergibt.Moderner digitaler Komfort, einschließlich USB- und Bluetooth-KonnektivitätDrei digitale Audioeingänge – optischer, koaxialer und asynchroner USB-Anschluss – unterstützen Daten bis zu 24 Bit / 192 kHz. Ein Chinch-Phono-Eingang bietet die Möglichkeit, eine analoge Quelle wie einen CD-Player oder einen Plattenspieler anzuschließen (bei Verwendung eines geeigneten Phono-Vorverstärkers). Darüber hinaus kann man die Freiheit der drahtlosen Konnektivität genießen indem man Smartphones, Tablets und Computer über Bluetooth koppelt, wobei der klanglich überlegene aptX-Codec unterstützt wird. Privatverkauf, ohne Garantie, Rücknahme oder Umtausch

Ich biete hier eine unbenutzte Fernbedienung (aus Metal) an. Diese kann für den Quad VA-One, oder eine Quad Vena II genutzt werden. Die Fernbedienung funktioniert einwandfrei, wird jedoch ohne Batterie geliefert. Normal 0 21 false false false DE X-NONE X-NONE Unvermeidbar, das Kleingedruckte: Wegen der neuen Gesetzesbestimmungen erfolgt der Verkauf unter Ausschluß jeglicher Gewährleistung, Garantie und Rücknahme. Da es sich um einen Privatverkauf handelt, kann Ich keine Garantie nach neuem EU-Recht übernehmen. Der Käufer erklärt sich damit einverstanden auf Garantie, Rücknahme, Minderungen sowie Nachverhandlungen ausdrücklich zu verzichten. (§ 312 d. Abs. 4 Nr. 5 BGB) und erkennt dies mit seinem Kauf an! Laut dem neuen EU-Recht muss dieser Zusatz unter jeder Online-Verkaufsaktion stehen, ansonsten haftet der Verkäufer auch als Privatperson ein ganzes Jahr für die verkaufte Ware.

QUAD VA-ONE + (PLUS) All Tube Integrated Amp MINTComplete set of Gold Lion replacement tubes, about $500 retail worth You can own an all tube integrated amp that sounds amazing. The ONLY one like it.Ive had it about 3 years, bought from Crutchfield, and I am moving up to Quad separates. Im also providing a set of replacement Gold Lion tubes bought from Upscale Audio. See pics for details on what is included. NOTE: About a month ago, it gave me a lot of distortion. I powered down, and restarted and it was fine. I did some research but couldnt come up with a reason why this happened. No blemishes, sounds great, looks great, and this is a rare unit. All tube sound with BlueTooth, and three digital ins, and an analog in as well. 15W booms out of the speaker connects and drives a range of speakers. This is 15W of TUBE power, not wimpy solid state power. SPECS General descriptionIntegrated amplifierRated power output2 x 15W RMS (6½) 2 x 12W RMS (8½ / 4½)Frequency Response20Hz - 50kHz (-3dB)Total harmonic distortion0.50%Signal-to-noise ration (S/N)90dBInput Impedance50K½Inputs1 x RCA, 1 x OPT, 1 x COAX, 1 x USB B, Bluetooth (aptX)Outputs1 x Speaker Terminal,1 x 6.3mm Jack HeadponeValves1 x ECC83, 2 x ECC82, 4 x EL84EHNet weight10.8kgOutputs2 x 6.3mm Jack headphone socket, RCA PhonoDigital Resolution44.1kHz, 48kHz, 88.2kHz, 96kHz, 176kHz, 192kHzValves2 x 66SL7, 2 x 6SN7, 1 x EZ81Size (W x D x H)180mm x 284.5mm x 163.5mmNet Weight7.5kgDimensions (H x W x D)90 x 220 x 300mm

Quad VA-One Valve Amplifier. Condition is Used. Shipped with USPS Ground Advantage.

One quad of assorted 6V6GT tubes, three by Sylvania and one by GE, at same mid-high ratings.Test Ratings: 4 x 85 on my Jackson 648s tester, minimum is 70, new tubes at about 105.SHIPPING: Shipping rates quoted are for USA and Canada only. Shipping rates to Europe and Asia are subject to slight variation. The buyer for those countries will be informed about the exact rate after the sale. Please pay in 3 days. Combined shipping is welcome. If you have paid for individual items and have surplus shipping fee paid for, I will refund you immediately when I send out the combined parcel.

Item Description Quad PA-One+ Valve Headphone Amplifier - Half original RRP (£1400) - Free P&PExcellent overall condition, one careful owner from new. Just one blemish which is minor and not typically in view (see pics)Supplied in original packaging with valve cover, manual and power cable. Shipped via FREE fully insured courier service. Free DeliveryWe offer free delivery anywhere in Mainland UK.Fully insured for your peace of mind.International CustomersWe are happy to ship outside the UK on some of our listings.If shipping has not been quoted by eBay through its GSP (Global Shipping Programme) please contact us for a quote. Thanks.Returns PolicyWe want you to be happy with your purchase. If you wish to return an item, please contact us within 14 days to obtain a returns reference.The item must be in the same condition as you received it - including all packaging.Contact UsThe Audiobarn2 Feltimores ParkOld HarlowEssex CM17 0PFTel: 01279 454 860www.theaudiobarn.co.ukRegistered Company No. 9309546VAT No. GB 202 0625 71

4 old stock balance matched nos ei yugoslavia 6dj8 ecc88 audio tubeslegendary dazzling detailed air bass tone, very rare quad from curated collector stocksuperb choice illuminator upgrade for mics amps stereos instruments, vocals especiallyaudio grade phono ready quad w/ special proprietary complete cali refurb processunparalleled spatial sound stage built on quality special tooling of the time, fan favorite sleeperpristine full gm/gain balance match 110/120~108/118~122/122~125/125+ % gm (100+nos/65)authentic ei etch codes w/ real old silkscreens in very nice conditionships fast well packed worldwide w/ boxes ~authentic vintage audiophile collectibles by cali acoustics~ current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 pcc189 e88cc e188cc cca12ax7 12au7 12at7 12ad7 / ecc83 ecc82 ecc81 62016bq5 el84 (7189 soon) ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 audiophile verified compatible apps include: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 mono blocks +many more(we dont relabel tubes / oe fragile only)

1950s Vintage QUAD Valve Preamp Control Units Type QC II original components One of the last valve preamplifier QUAD made. Very nice used condition of a vintage Quad Control Unit Type QC IIin excellent original components, cosmetic condition. I also should have 2 pin Bulgin plug somewhere (not on the photo) This unit came from the working environment however no tests have been done since, so I’m listing as UNTESTED. No returns or refunds after sale. *** I ONLY send with Recorded Post (sign for/ International sign for), or major courier ie: UPS, FedEx. Non-EU/ International bidders, Please contact us prior to bidding for the estimated postage. Thank you *UK Postage only applies to mainland bidders

Quad II Valve Amps. Sensitively Reconditioned by a highly skilled audio electronics engineer. GEC KT66. Mullard GZ32 & EF86.. Wonder reconditioned Quad valve amps. Audio Note RCA input and Banana Sockets. Original tested valves included. Modern Mains cable input socket. Mains power cables supplied. Caps and resistors changed. Original wiring. Set for 8 ohm speaker output. Case resprayed. Original smoothing cap case retained. Audiophile fuse installed. Fantastic audiophile sound quality. 15 watts output per channel. Can be used with a simple passive preamplifier. The valves have been carefully matched and tested. Unfortunately I can not accept responsibility for damage in postage or life of the valves due to their age....... Now well over 40 years old. The valves will be sent in their own box. Sorry for the high Postage cost. Postage by ups insured delivery. Personal collection most welcome. You are buying an item from my personal collection of Audio Equipment. I am not a business or company and unfortunately cannot take returns based on a dislike of the product. I pride myself with 100% feedback and always act fairly and quickly with any problems that might arise. I will post the package in the UK and It must be signed for delivery. Payment managed by eBay. Any questions, please ask. The pictures for this item form part of the description, please just ask if you would like additional photos

Goltone (Bulgin Style) Power Plug For Quad Valve Pre Amplifier And Others. Used but very Good condition. UK sale only. Open to offers.

  TUBE HUNTER VACUUM TUBE GEMSTHESE ARE THE SPECIFICS OF THE TUBE/TUBES FOR SALE THESE ARE THE TUBE/TUBES FOR SALE:    MANUFACTURER:                                GE PRODUCTION CITY:                                      USA TUBE TYPE:     12B4A DESIGNATION:                                                TRIODE COPPER POST YEAR:     1960s MONTH or WEEK      Date code match       SILK SCREEN CONDITION %:                   100% MICA:   2 MICA PLATES:    BLACK GM%:   122%,  122% 121% 123% SINGLE/PAIR/QUAD/MULTI:   QUAD GETTER:                                                         O GETTER DATE CODE                                                      STOCK PHOTO AUCTION IS FOR ONE QUAD. VERY STRONG AN NEAR PERFECT BALANCE ALL THE SAME DATE AND CONSTRUCTION Normal 0 false false false EN-US X-NONE X-NONE On my tester a B&K 747 tester:    Below 55 = BAD      55-66 = ?     65 -100 = Good     100-120+ = NOS          I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !!1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer.If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button.Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping.2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT.3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!!4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else.6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage.7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note:1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws.3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days.4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.    Listing and template services provided by inkFrog

QUAD II amplifier input adaptors pair as pictured Custom made from vintage Brass cased Jones plugs with new Neutrik RCA sockets and custom adaptor ring Input is a.c. coupled and presents 51k load for transistor pre-amp PTFE insulated wiring and internal covers - HT pin 3 removed and heater connections cut back and insulated inside plug for safety of user and the connected source

  TUBE HUNTER VACUUM TUBE GEMSTHESE ARE THE SPECIFICS OF THE TUBE/TUBES FOR SALE THESE ARE THE TUBE/TUBES FOR SALE:    MANUFACTURER:                                GE PRODUCTION CITY:                                      USA TUBE TYPE:     12B4A DESIGNATION:                                                TRIODE COPPER POST YEAR:     1960s MONTH or WEEK      Date code match       SILK SCREEN CONDITION %:                   100% MICA:   2 MICA PLATES:    BLACK GM%:   122%,  122% 121% 123% SINGLE/PAIR/QUAD/MULTI:   QUAD GETTER:                                                         O GETTER DATE CODE                                                      STOCK PHOTO AUCTION IS FOR ONE QUAD. VERY STRONG AN NEAR PERFECT BALANCE ALL THE SAME DATE AND CONSTRUCTION Normal 0 false false false EN-US X-NONE X-NONE On my tester a B&K 747 tester:    Below 55 = BAD      55-66 = ?     65 -100 = Good     100-120+ = NOS          I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !!1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer.If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button.Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping.2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT.3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!!4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else.6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage.7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note:1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws.3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days.4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.    Listing and template services provided by inkFrog

Tube Integrated Amplifier-Headphone Amplifier Quad VA-One. Excellent condition. No scratches or blemishes. Excellent Head Phone amp Plus 12 Tube Watts of power for connecting speakers. 12 Watts will drive ELAC-Debut 2.0 speakers at normal listening level (room 12x 12), and louder with more efficient speakers (Klipsch). Rear of unit accepts 1 pair of analogue RCA inputs and 3 digital inputs. Very sturdy remote control. Power switch on back. Turn on and leave on (standby). Remote turns on/off the unit. Blue tooth antenna, remote, instruction manual and various cables are included.See the following link for a review of the Quad VA-One. https://www.avforums.com/reviews/quad-va-one-integrated-valve-amplifier-review.13082/. Buyer pays shipping. Amp has some heavy duty transformers so weight is approximately 26 pounds. Double boxed in original boxes.I will ship only to addresses in the continental United States excluded Hawaii and Alaska.

Tube Integrated Amplifier-Headphone Amplifier Quad VA-One. Excellent condition. No scratches or blemishes. Excellent Head Phone amp Plus 12 Tube Watts of power for connecting speakers. 12 Watts will drive ELAC-Debut 2.0 speakers at normal listening level (room 12x 12), and louder with more efficient speakers (Klipsch). Rear of unit accepts 1 pair of analogue RCA inputs and 3 digital inputs. Very sturdy remote control. Power switch on back. Turn on and leave on (standby). Remote turns on/off the unit. Blue tooth antenna, remote, instruction manual and various cables are included.See the following link for a review of the Quad VA-One. https://www.avforums.com/reviews/quad-va-one-integrated-valve-amplifier-review.13082/. Buyer pays shipping. Amp has some heavy duty transformers so weight is approximately 26 pounds. Double boxed in original boxes.I will ship only to addresses in the continental United States excluded Hawaii and Alaska.

1950s Vintage QUAD Valve Preamp Control Units Type QC II original components One of the last valve preamplifier QUAD made. Very nice used condition of a vintage Quad Control Unit Type QC IIin excellent original components, cosmetic condition. I also should have 2 pin Bulgin plug somewhere (not on the photo) This unit came from the working environment however no tests have been done since, so I’m listing as UNTESTED. No returns or refunds after sale. *** I ONLY send with Recorded Post (sign for/ International sign for), or major courier ie: UPS, FedEx. Non-EU/ International bidders, Please contact us prior to bidding for the estimated postage. Thank you *UK Postage only applies to mainland bidders

Tube Integrated Amplifier-Headphone Amplifier Quad VA-One. Excellent condition. No scratches or blemishes. Excellent Head Phone amp Plus 12 Tube Watts of power for connecting speakers. 12 Watts will drive ELAC-Debut 2.0 speakers at normal listening level (room 12x 12), and louder with more efficient speakers (Klipsch). Rear of unit accepts 1 pair of analogue RCA inputs and 3 digital inputs. Very sturdy remote control. Power switch on back. Turn on and leave on (standby). Remote turns on/off the unit. Blue tooth antenna, remote, instruction manual and various cables are included.See the following link for a review of the Quad VA-One. https://www.avforums.com/reviews/quad-va-one-integrated-valve-amplifier-review.13082/. Buyer pays shipping. Amp has some heavy duty transformers so weight is approximately 26 pounds. Double boxed in original boxes.I will ship only to addresses in the continental United States excluded Hawaii and Alaska.

  TUBE HUNTER VACUUM TUBE GEMS THESE ARE THE SPECIFICS OF THE TUBE/TUBES/PARTS FOR SALE THESE ARE THE TUBE/TUBES/PARTS FOR SALE:  MANUFACTURER:      RCA PRODUCTION CITY:                                      USA TUBE TYPE:     12AB5 DESIGNATION:                                                POWER PENTODE YEAR:     1966 MONTH or WEEK     MARCH Date code match    YES SILK SCREEN CONDITION %:                   100% MICA:   2 MICA PLATES:   GREY GM%:   122%,122% 121% 123% SINGLE/PAIR/QUAD/MULTI:   QUAD GETTER:                                                         O GETTER DATE CODE                                                   AZ  AUCTION IS FOR ONE QUAD. VERY STRONG AN NEAR PERFECT BALANCE PROPS NOT PART OF SALE Normal 0 false false false EN-US X-NONE X-NONE On my tester a B&K 747 tester:    Below 55 = BAD      55-66 = ?     65 -100 = Good     100-120+ = NOS   *********************************************************************************** NOTES ON PHOTO PROPS:  THE RCA DOG, AND PHONO ARE NOT PART OF THE SALE. THIS IS TRUE OF ANY PROPS USED IN PHOTOGRAPHY IN THE LISTING THAT ARE NOT SPECIFICALLY CALLED OUT IN THE LISTING AS ITEMS FOR SALE. NOTES ON PHOTOS FOR SINGLE TUBES: IF YOU ARE BUYING A SINGLE TUBE: FOR THE MOST PART WITH TUBES UNDER 15 DOLLARS WE ARE USING STOCK PHOTOS FOR SINGLES. YOUR MILEAGE MAY VARY. YOU WILL RECEIVE A NEW TUBE. IT WILL TEST NOS. IT MAY OR MAY NOT BE ONE OF THE ONES IN THE PICTURE. WE GET TUBES IN ALL THE TIME. WITH SINGLES OF A LOW VALUE WE ARE NOT PICKY ABOUT DATES AND CONSTRUCTION AND THINGS LIKE THAT. WE ALSO MAY SUBSTITUE A TUBE BY A DIFFERENT MANUFACTOR IF WE ARE LOW ON STOCK OF THAT BRAND SUCH AS AN RCA FOR A GE FOR EXAMPLE, BUT WE WILL NOT SEND A JAPANESE BRAND FOR A USA MADE TUBE, OR A LOWER QUALITY TUBE IN ANY WAY. IF WE ARE SELLING A PAIR, OR A HIGH VALUE SINGLE THEN WE GET SERIOUS ABOUT SUCH THINGS. NOTES ON MATCHING: 1. TRIODES SIMILAR TO 12AX7 ARE DONE ON A TEKTRONIX 576 CURVE TRACER IF I HAVE MATCHED THEM WITH THIS MACHINE I GUARANTEE THAT THESE MATCHED PAIRS WILL BE NOT BE ABLE TO DIFFERENTIATED WITH THE HUMAN EAR IN A PREAMP CIRCUIT.  2. ON OTHER TUBE I USE A CALIBRATED HICKOK 600A TO MATCH TUBES. 3. ON MODERN TUBES, FOR WHICH THE 600A CANNOT PERFORM TESTS, I USE THE CALIBRATED B&K 747B TUBE TESTER. NOTES ON THE BOXES. LISTING WILL GENERALLY HAVE INFORMATION ABOUT ANY BOXES ASSOCIATED WITH THE TUBES FOR SALE. THESE ARE THE OPTIONS: 1. ORIGINAL BOXES IN VARYING CONDITION. THESE BOXES WILL BE THE ORIGINAL BOXES THE TUBES CAME IN AND WILL SHOW AGING IN VARYING DEGREES. THESE TUBES ARE ASSUMED TO BE NEW AND WILL TEST AS NOS. 2. NO BOXES PROVIDED (NONE AVAILABLE USUALLY USED AND SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. 3. REPURPOSED BOXES. THESE ARE BOXES OF THE SAME MANUFACTURER. THESE WILL HAVE A LABEL OVER THE TUBE NUMBER THAT REFLECTS THE TUBE BEING SOLD. THESE TUBES SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. 4. TUBEHUNTER BOXES. THESE ARE BOXES I HAVE MADE WITH GREAT TIME AND EXPENSE TO PROTECT YOUR VACUUM TUBES AND PROVIDE FOR STORAGE AND EASY IDENTIFICATION. TUBES IN THESE BOXES SHOULD BE ASSUMED TO BE USED UNLESS OTHERWISE STATED. 5. WHITE BOXES. SHOULD BE SELF EXPLANATORY. NOTES ON TESTING OF TUBES: THIS IS DONE ON A NUMBER OF TESTING DEVICES 1. TEKTRONIX CURVE TRACER 2. B&K 747 TUBE TESTER 3. MERCURY 1000 DYNAMIC MUTUAL CONDUCTANCE TESTER 4. HICKOK 600A DYNAMIC MUTUAL CONDUCTANCE TUBE TESTER  I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy. 5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else. 6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage. 7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  8. TESTING RESULTS SHOW HOW THE TUBE IS PERFORMING  NOW.  TESTING RESULTS DO NOT SHOW HOW OLD A TUBE IS OR HOW MANY HOURS IT HAS BEEN USED. HOWEVER IF A TUBE TEST NOS YOU CAN BE ASSURED IT WILL LAST A LONG TIME AND IS WORKING VERY WELL. NOTES ON CUSTOMER RELATIONS: I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. NOTES ON RETURNS: 1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer. 2. We almost always have a replacement available of the same or sometimes even higher quality. Please note that it is our desire TO DO BUSINESS! We never rip anyone off.......EVER. 3. If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button. 4. Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping. 5.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT. 6.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!! International customers note: 1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws. 3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days. 4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.     : Listing and template services provided by inkFrog