2x TUNG-SOL Röhren ECC803S Goldpins ersetzt ECC83, 12AX7 aus alten Lagerbeständen Kombiversand möglich, bitte Anfagen. Aus den Nachlass einer HIFI Werkstatt Ich löse einen umfangreichen Nachlass auf.Bei dieser Auktion handelt es sich um einen Nicht-Gewerblichen privaten Verkauf, es besteht keine Garantie oder Gewährleistung eine Rückgabe wird hiermit ausdrücklich ausgeschlossen.

Up for sale : YOU GET ALL 3 TUBES FOR THE PRICE . ABSOLUTLEY NEW OLD STOCK USA MADE TUBESHIGH QUALITY VINTAGE TUBES ONE NOS NIB WESTINGHOUSE BLACK PLATES LARGE D GETTER 12AX7 ECC83 = PERFECT TUBE ONE NOS NIB SYLVANIA TALL GREY PLATE 12AX7 ECC83 PERFECT TUBE ONE VERY HIGH GRADE 5751 TUNGSOL TALL PLATES LARGE D GETTER TUBE MADE WITH 16 POINTS MICAS ALL 3 TUBES PERFECT ALL 3 TUBES 100% GUARANTEED TO WORK EXCELLENT FOR A VERY LONG TIME THESE 3 TUBES ARE BRAND NEW NEVER USED BEFORE WITH THE ORIGINAL BOXES YOU GET EVERYTHING IN THE PHOTOS FOR THE PRICE

Wir haben deinradio! Senden Sie uns eine Nachricht Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt Tung-Sol 12AX7 Röhre NOS OVP ECC83 long Plates square Getter Rörhenverstärker Bitte entnehmen Sie den genauen Zustand und Lieferumfang den Bildern.Die Röhre ist noch neu und in der OVP. Wir bieten eine Vielzahl an alten Bastel -und Sammelobjekten an.Bitte beachten Sie, dass aufgrund des Alters keine Garantien auf die technischen Funktionen gegeben werden können.The parts are very old, we dont give any guarantee on the technical function. Zahlung Versand Kombiversand nur bei Artikeln möglich, die am gleichen Tag gekauft werden. (aus einer Auktionsrunde) DIe angepasste Rechnung erhalten Sie dann nach Auktionsende. Aufwendiger Versand (klimaneutral) mit DHL Premium in 2-welliger Kartonage und aufwendiger Polsterung! Versand größtenteils plastikfrei, 80 Prozent des Versandmaterial aus recyceltem Altpapier bzw. Second-Hand Kartonagen. WORLDWIDE SHIPPING ON REQUEST! PLEASE ASK BEFORE YOU BUY! Links Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt Newsletter Verpassen Sie keine Angebote mehr! Wir informieren Sie über Angebote und Aktionen bequem per E-Mail. Newsletter abonnieren Kontakt Senden Sie uns eine Nachricht

OUR INSTRUMENTS ARE CALIBRATED WITH REFERENCE TUBES AND POWERED WITH UPS LINE VOLTAGE FOR A MORE ACCURATE AND STABLE MATCHING PROCESSFor English Language see below 7025 ( 12AX7 ) TUNG-SOL Long Gray plates 17mm Halo Getter Low Hum & MicrophonicsMADE IN USA 50s Prodotta da TUNG-SOL negli Stati Uniti dAmericaVersione Low Hum & Microphonics della 12AX7Valvola con sezioni Bilanciate La 7025 TUNG-SOL Long plate Halo Getter, prodotta negli Stati Uniti, ha un suono distintivo e ricco di carattere. Il timbro generale è caldo, con una risposta ampia e dinamica. La gamma bassa è robusta e profonda, con una buona presenza e una piacevole sensazione di spinta. I bassi sono ben definiti e hanno una buona estensione, mantenendo un controllo preciso senza appesantire il mix. La gamma media è particolarmente notevole, è presente, aperta e ben equilibrata, conferendo una chiarezza e una definizione eccellenti alle voci e agli strumenti melodici. Ciò può rendere la chitarra elettrica molto espressiva, con una buona capacità di taglio nel mix. I toni alti sono luminosi e armonici. La 7025 TUNG-SOL ha una buona estensione nella gamma degli acuti, con una presenza sostenuta e una piacevole resa armonica. Questo conferisce una brillantezza piacevole senza diventare troppo acuta o sgranata. Loghi usurati come da foto Lofferta è per una valvola selezionata Tested Tube.Testate su AMPLITREX AT-1000 Tube tester:Voltage Test: Va = 250V, Vg = -2V, Vf = 6,3VMedia 100% Gm = 1600 ; Ia = 1,2 mARISULTATO DEL TEST: MOLTO FORTE Sezione 1: Gm 1500 ; Ia = 1,1 mASezione 2: Gm 1500 ; Ia = 1,1 mA Ulteriori test eseguiti:Test MicrofoniaQualità dellEmissioneTest per CortocircuitiTest per GAS Spedizione con imballo protetto per una maggiore sicurezza.Imballaggio in carta riciclata e riciclabile. Nastro adesivo di chiusura in carta marrone - ECO-KRAFTEco compatibile - SOLVENT FREE 7025 ( 12AX7 ) TUNG-SOL Long Gray plates 17mm Halo Getter Low Hum & MicrophonicsMADE IN USA 50s Manufactured by TUNG-SOL in U.S.A.Low Hum & Microphonics version of the 12AX7Tube with Balanced Sections The 7025 TUNG-SOL Long plate Halo Getter, made in the USA, has a distinctive sound full of character. The overall timbre is warm, with a broad and dynamic response. The low end is robust and deep, with good presence and a nice punchy feel. Bass is well defined and has good extension, maintaining precise control without weighing down the mix. The midrange is particularly notable, it is present, open and well balanced, lending excellent clarity and definition to melodic vocals and instruments. This can make the electric guitar very expressive, with good cutting ability in the mix. The high tones are bright and harmonic. The 7025 TUNG-SOL has a good extension in the treble range, with a sustained presence and a pleasant harmonic delivery. This gives a nice shimmer without getting too sharp or grainy. Logos worn off as pictured You are bidding for a Tested TubeTested on AMPLITREX AT-1000 Tube Tester:Voltage Test: Va = 250V, Vg = -2V, Vf = 6,3VAverage 100% Gm = 1600 ; Ia = 1,2 mATEST RESULT: VERY STRONG Section 1: Gm 1500 ; Ia = 1,1 mASection 2: Gm 1500 ; Ia = 1,1 mA Other test made:Test for MicrophonicsTest for Emission QualityTest for ShortsTest for GAS Shipping with protected packaging for best security.Our Packaging is in recycled and recyclable paper. Brown paper sealing tape - ECO-KRAFTEco friendly - SOLVENT FREE

This listing includes a vintage Tung-Sol 12AX7 / ECC83 audio preamplifier vacuum tube / valve. This tube has gray ribbed plates and a D getter. This tube was recently tested on a TV-7D/U tube tester and it tested at 52/50 (min. good = 32/32) with no shorts. This tube comes as shown in the photos. Own this vintage 12AX7 audio tube for a great price. This item is not available for local pickup, it will need to be shipped to your location. All of my items are packed very well for a safe trip and I include full shipping damage insurance coverage with all of my items. International buyers may be responsible for customs fees, import taxes, and duties.

MAXI & TV-7 TESTED TUNG-SOL JTL-12AX7 GREY PLATE SQUARE GETTER ***FREE SHIPPING*** TESTED ON A MAXI PREAMP II TUBE TESTER FOR GAIN(Mu), TRANSCONDUCTANCE(Gm) AND NOISE(dB). THE MAXI PREAMP II TESTS TUBES AT 200 VDC PLATE CURRENT 4 TIMES PER SECOND. Gain(Mu) Section A = 101.6 Gain(Mu) Section B = 93.3 Tester Gain (Mu) Range = 0 - 120 Tester 12AX7 Expected Gain (Mu) value = 92 Transconductance (Gm) Section A = 1718 Transconductance (Gm) Section B = 1644 Tester Gm Range 0 - 9900 Noise (dB) Section A = -88.8dB Noise (dB) Section B = -87.5dBTester Noise (dB) Range -92dB - 0dB While performing an audio tap test on the Maxi Preamp played through a guitar amplifier both triode A tested excellent & triode B tested somewhat microphonic. TV-7 Test Results: Minimum good value on the TV-7 is 32.Triode A Tested: 57 Triode B Tested: 55 TEST RESULTS ARE SHOWN IN PHOTOGRAPHS. I OFFER A 100% REFUND UPON RETURN OF THE ITEM SHOULD IT NOT MEET YOUR EXPECTATIONS OR NEEDS. LOT 1233

Great, came out of an amp I no longer own Item has been photographed by myself to show the actual product you are purchasing. Item is sent via Australia Post within two business days of payment clearing. Australian Seller Please see my large range of listings, I add new stock daily to my store. Combined postage is also available.

TWO(2) Vacuum Tubes, Both Tested on 2 different Dan Nelson Calibrated TV7A/U(11/11/2021) & TV7D/U(07/24/2023) Lab Testers Two (2) Tubes Tested . One Pre-1963 12AX7 & One 1964 TUNG-SOL 12AX7A Tube - Vintage Both Made in USA- Both tubes have identical internal construction- Long Gray Ribbed Plates, Top side Halo O Getter- Tube #1 Glass White Inked : 12AX7A TUNG-SOL Made in U.S.A. 322RI-3, Glass etched 12 4 46 3 inside Wide Octangle with line breaks.- Tube# 1 = 322=EIA Code for Tung-Sol, RI-3= 3rd shift production, RI=Sept 1964 (46th week) date code- Tube #2 Glass White Ink removed by cleaning : Glass etched U.S.A. 3 then 12AX7 inside Wide Octanglewith line breaks.- Tube#2 = this is a pre-1963 tube (1960-62 era ) 12AX7 (not 12AX7A) tube - Both Tubes ship in a new white box with test results on the side of the boxand a printed page of these test results given below. Condition: Used, Tested Good with Life, Plug-in and Play condition Digital TV7 Test Results : NO SHORTS, NO LEAKAGE, NO Gas, NO Micro phonics DetectedMinimum good TV7 meter reads 32/32 = 800/800 uMhos Gm . When Tested at 150VDC Plate Supply Volts (max VDC PSV for TV7)for CLASS A1 Amplifier an average factory new tube will read > 50/50 1,250/1,250 uMhos (Gm) at > 1.1/1.1mA plate current emissions. When test at 250VDC Plate Supply volts which is the most common Bogeyreference then factory specs for a new tube are S =[ 1,6 mA/V Ia=1.2mA ] = 1,600uMhos at 1,2mA plate current emissions both sides. (Digital Meter Reading, uMhos (?? ) Transconductance (Gm), Anode Plate Current (mA)Tube 1: Plate 1: 44.7 = 1,117.5 uMhos Gm at 1.2 mA Plate Current emissions Plate 2: 46.0 = 1,150.0 uMhos Gm at 1.2 mA Plate Current emissions Tube 2: Plate 1: 47.1 = 1,177.5 uMhos Gm at 1.1 mA Plate Current emissions Plate 2: 52.2 = 1,305.0 uMhos Gm at 1.1 mA Plate Current emissions Our Test set : Recent Dan Nelson (11/11/2021) Restored, Enhanced, Upgraded & Calibrated with Digital Meter reading Transconductance (Gm) and Anode Plate Current Dissipation (mA). We use Nolan Lees last published TV7 conversationspreadsheet to transpose TV7s numerical meter readings (0-120) into actual uMhos Gm transconductance #s based upon the Selector switch settings( A-E). For Reference: The Minimum good value for a ECC83/12AX7 tube tested on all TV7 versions is 32/32 = 800/800 uMhos GmBogey: RCA/GE/Sylvania/Tung-Sol Factory Data Sheet NOS when Tested at 250VDC Plate Supply Volts new 64/64 = 1,600/1,600 (?? ) uMhos Transconductance (Gm) at 1.2/1.2mA Anode Plate Current Dissipation. When Tested at 100VDC Plate Supply Voltsa TV7 meter reading of 50/50 = 1,250/1,250 uMhos Transconductance (Gm) at 0.5/0.5 mA Plate current emissions.All TV7 versions test at a maximum of 150VDC Plate Supply Volts WE SHIP FAST, WE COMBINE SHIPPING ON MULTIPLE PURCHASES, WE CAREFULLY TEST EVEN NOS/NIB VACUUM TUBES TO ENSURE THEY TEST NEW GIVENTHE ORGINAL MANUFACTURERS DATA SHEET. WE PACK WELL FOR SAFE SHIPPING, Many years of shipping Experience with FRAGILE Vacuum Tubesand Vintage Electronics. WE Usually SHIP Within 1 Day,Orders received by 1pm EST usually ship SAME DAY as Immediate Purchase. Monday-Saturday. Our standard service for ALL 50 States is USPS 1st Class, 2nd option is USPS Priority Mail small box.

Lot of (7) good Tung-Sol 12AX7 gray plate tubes. These are all 1960s long plate tubes with O getters. Test results are shown in the last picture, and the order of boxes is the same as the order of tubes in the other pictures. I ship worldwide directly via USPS and UPS. Buyers from mainland China and Italy: please contact me for shipping cost.**************************************** Be sure to read my policies below, and contact me before you purchase if you have any questions. I have over 30 years of experience as an electronics engineer, certified electronics technician, and hobbyist, and have been collecting, buying, and selling tubes since the 1980s. Ive been an eBay seller since February of 2000. This is the only seller account I have on eBay and the pictures you see are of the actual tube(s) you’ll receive. Tubes are described, tested, and presented to the best of my ability, subject to the limitations of the equipment that I have available (Hickok 539C and 6000A). Test results are likely to differ between your equipment and mine due to many factors. Tubes are not tested for noise or microphonics. Do you have tubes to sell? Contact me with your inventory!Return Policy Unless otherwise stated in this listing, tubes may be returned within 30 days for a refund. Please keep in mind that while I do allow returns, my purpose here is to sell tubes, not to loan tubes for rolling. Any tube to be returned must: a) still bear my identification stamp. b) be in EXACTLY the same condition in which it arrived to you. Things which may invalidate a return: defaced or smudged print on the glass, bases scratched from retainer springs, cracked or damaged glass, damaged or missing boxes (where original boxes were sent with the tubes), and electrical or physical degradation from improper operation or handling. Returns which do not meet the above criteria may be refused or may be subject to partial refund. Ebays return guidelines prohibit “using or damaging an item and then returning it.” I pay for return shipping on all returns within the USA, regardless of reason. You pay for return shipping if you are located outside of the USA. If the tube arrives to you DOA or significantly not as described (SNAD) I pay for return shipping. I do not pay for return shipping for any other reason. If a tube is returned as DOA or SNAD, but does not test as such upon return, I reserve the right to be reimbursed for any return shipping cost that I paid. International buyers, please note: Import fees and taxes which you pay to your border and/or customs agency are not refundable by me under ANY conditions or for ANY reason, regardless of the reason for your return.Shipping Your tubes will be professionally prepared for shipping using all-new packing materials and will arrive to you in perfect condition. Ive been shipping tubes for many years and know how to get them to you quickly and securely. International orders ship with proper customs documentation and tariff codes to ensure that theyre processed with minimal delay upon arrival in the destination country. DOMESTIC: Unless otherwise noted, free shipping is offered on all tubes purchased with Buy-It-Now. Orders that total $400 or less are generally shipped via the USPS Ground Advantage service, while orders exceeding that value are shipped via USPS Priority Mail. Other services are available at additional cost. If you prefer a shipping method that is not listed, please contact me prior to purchasing. I can usually ship via any USPS, FedEx, or UPS method that is applicable to your ZIP code. If you need expedited shipping (Express, Next Day, etc.) please contact me first to confirm earliest available date of shipment, as cutoff times are generally early in the afternoon. INTERNATIONAL: USPS First Class Mail: This is the least expensive option but the availability of tracking is limited in many cases. Its available worldwide for packages with a value of USD$400 or less. Be aware that First Class Mail has been known to take up to three months to reach some destinations. Customs delays are also more common with First Class. If you select the First Class option I expect that you will be patient and wait three months before requesting a refund for “item not received.” If you require faster delivery please select an option below. USPS Priority Mail: This option is available for shipments with a value less than USD$1000. It typically takes a couple of weeks to reach most destinations. UPS Worldwide Expedited: This option is available worldwide for all shipments, and is required for shipments valued at USD$1000 or more. It is fast and reliable, with end-to-end tracking. I can also usually arrange shipping with other carriers at additional cost. Please inquire before purchasing if you have specific requests. I ship to China and Italy only via UPS Worldwide Expedited, regardless of value. No exceptions. I dont use eBays in-house International Shipping program, as the cost tends to be much higher than shipping directly with a carrier.USPS requires that all addresses be in “Latin” (abcdefg) characters (this means, for example, no Cyrillic (???????) or Chinese (???), etc.). USPS will return to the me any packages which violate this guideline, and the buyer will then be required to correct the address and pay postage again. Ebay places the burden of safe delivery on sellers, so I fully insure all shipments sent outside of the USA, regardless of value. Because I can insure only up to the declared value, ALL SHIPMENTS ARE DECLARED AT ACTUAL VALUE. You might owe significant import fees on higher value shipments once they cross your countrys border – check with your border or customs agency for details. I can ship to a domestic freight forwarder or other third party within the USA, provided their address is on the order at the time you place it. GENERAL: SIGNATURE REQUIREMENT: All orders valued at USD$750 or greater, and ANY order shipped via UPS or FedEx, automatically require a signature release upon delivery. Someone at your delivery address will need to be available at the time of delivery to sign for the package. COMBINED SHIPPING: Im happy to combine shipping on multiple purchases. Those shipping within the US will combine automatically. International orders must be manually combined after the purchase, and any excess shipping will be refunded to your payment source (due to the way eBay buy-it-now items are set up, this is the only way I can combine shipping on more than one item). HANDLING TIME: My handling time is one business day and eBay requires me to ship within that timeframe. I cannot withhold shipment for a later date. If you require shipment on a specific date I can often set up a special listing just for you on that date; please inquire. I usually ship every day of the week, except for Sunday and USPS-observed holidays, and orders often ship same day. Orders placed later in the day usually ship next business day. Orders placed on Friday or Saturday will sometimes not ship until Monday. All orders placed on Sunday or USPS-observed holidays ship the next business day. Expedited and express shipments (FedEx and UPS 2-day & Next Day, etc) must be placed by 12PM Pacific Time in order to ship same day. If you have an urgent delivery need its a good idea to contact me first so I can confirm exact day of shipment. SHIP-TO ADDRESS: Ebay requires that I ship to the address on the order. This protects both you and me. I cannot ship to a different address. If you require shipment to a different address please update your shipping information before making a purchase. R31

Up for auction is a lot of 9 12AX7 ECC83 5751 7025 tubes. They have been tested on a calibrated TV7. Tested for mutual conductance with a min of 32/32. They test as follows Sylvania 73/70, GE 35/30, GE36/36, Raytheon 39/39, Tung-Sol 45/42, RCA 52/55, Sylvania 65/59, USAF 44/42 and RCA 41/42. I do combine shipping. Due to a divorce I had to open a new account. I was formally known as Harleybabe8574. I have been dealing with tubes for many years.

1 x 12AX7 Tung-Sol Tube Made in USA Long Grey Plates D-Getter Lettering may be smudged/missing Tested on Enhanced Triplet E3444 Laboratory Tester Results = 1200/1250 micromhos @ .70 /.80 mA Bogey(100% or new) = 1600/1600 micromhos @ 1.2/1.2 mA +/- 10% I do combine S&H The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-2.0___ Grid Bias What were your tubes tested at? I do combine S&H

2 x 5751(12ax7) Tung-Sol Tubes Made in USA Grey Plates D Getter Lettering is smudged/missing Tested on Enhanced Triplett E3444 Laboratory Tester prepared by Paul Hart of Ga. 910/930 micromhos @ .62/ .63 mA 780/650 micromhos @ .55/ .44 mA Bogey(100%) = 1200/1200 @ 1.2 & 1.2 mA +/- 10% The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_V plate, __250_V screen, ___-3___Vbias or Cathode resistance*What were your tubes tested at? I do combine shipping

1 x 12AX7 Tung-Sol Tube Made in USA Long Grey Plates O-Getter 1956 codes Tested on Enhanced Triplet E3444 Laboratory Tester Results = 1390/1500 micromhos @ .86 /.95 mA Bogey(100% or new) = 1600/1600 micromhos @ 1.2/1.2 mA +/- 10% I do combine S&H The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-2.0___ Grid Bias What were your tubes tested at? I do combine S&H

7025 12AX7 ECC83 Tung-Sol Tested Audio Amp Preamp Audio Stereo Vintage Radio Vacuum Tube See Picture Box for Test Results , Long Grey Plate , O Getter , Tested , Balanced We combine shipping Return Free Take a good look at the pictures as they give a much better description than words can If you have any questions, please ask them before bidding Shipping charge of $5.95 to anywhere within the lower 48 United States Thanks

1 x 12AX7 Tung-Sol Tube Made in USA for Motorola Long Grey Plates O-Getter Tested on Enhanced Triplet E3444 Laboratory Tester Results = 1350/1270 micromhos @ .81 /.88 mA Bogey(100% or new) = 1600/1600 micromhos @ 1.2/1.2 mA +/- 10% I do combine S&H The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-2.0___ Grid Bias What were your tubes tested at? I do combine S&H

1 x 12AX7 Tung-Sol Tube Made in USA Long Grey Plates O-Getter All lettering is missing Tested on Enhanced Triplet E3444 Laboratory Tester Results = 1540/1650 micromhos @ .91 /1.07 mA Bogey(100% or new) = 1600/1600 micromhos @ 1.2/1.2 mA +/- 10% I do combine S&H The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-2.0___ Grid Bias What were your tubes tested at? I do combine S&H

1 x 12AX7A Tung-Sol Tube Made in USA Long Grey Plates D-Getter Tested on Enhanced Triplet E3444 Laboratory Tester Results = 1320/1430 micromhos @ .89 /.92 mA Bogey(100% or new) = 1600/1600 micromhos @ 1.2/1.2 mA +/- 10% I do combine S&H The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-2.0___ Grid Bias What were your tubes tested at? I do combine S&H

PRICE PER TUBE!New in box TungSol 5751WA preamp tubes made for the US military. These tubes are very low noise and have a huge sound while retaining clarity. They are the only 5751 with long plates, and that gives them a very vibrant sound with great detail.These Tung Sol tubes are a great choice for reducing compression on your amplifier and making the gain pot range more usable on amps that have too much gain. They are also perfect as phase inverters as both sections are balanced. Like all 5751 type tubes, they have 30% less gain than a regular 12AX7 / ECC83. This is ideal for increasing the dynamic range of any amplifier.All of them are microphonics-free and test above NOS values on a Funke W19 Tube Tester. No leaks, shorts, etc either.Long grey platesHalo getterMade in USAPRICE PER TUBE! Feel free to send an offer for the number of tubes you want. I offer combined shipping in all my tube listings.Check my store for more tubes!

1 x 12AX7 Tung-Sol Tube Made in USA Long Grey Plates D-Getter Tested on Enhanced Triplet E3444 Laboratory Tester Tube #1= Sold1400/1450 micromhos @ .98 /1.00 mA Tube #21400/1250 micromhos @ .77 /.67 mA Bogey(100%) = 1600/1600 micromhos @ 1.2/1.2 mA +/- 10% I do combine S&H The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-2.0___ Grid Bias What were your tubes tested at? I do combine S&H

Up for sale is a mixed lot of 14 12AX7, ECC83, 5751, 7025 Tubes.Brands include GE, Tung-Sol, CBS, Sylvania.Some tubes have faded/missing labels. Tested on our calibrated TV-7A/U at 40/42, 40/40, 42/42, 46/48, 42/44, 48/48, 40/42, 42/46, 46/48, 42/44, 44/46, 48/48, 40/42, & 44/44 where 32/32 is the minimum. Free domestic shipping included.

Here is a vintage 50s TUNG-SOL 12AX7 radio transmitter guitar amp preamp vacuum tube that has tall gray plates and a top square D getter and tested good not strong at 78/96 on my tester, minimum good is 70 and max is 130. It is in good condition with decent labeling and, see pics for condition, testing and all that is included. This is a vintage vacuum tube made in USA by TUNG-SOL. Guaranteed good to play!! I made a video of this exact tube being used in an amp, see it at https://youtu.be/VhoMUlBvyrs It will be packaged for safe shipping. See my other items, vintage tubes and more. Shipping is done by USPS. Ebay automatically adds state sales tax. For multiple items, click Buy it Now or ADD TO CART, then Request Total From Seller to receive a combined invoice. The more you buy the more you save. No refunds or returns of any kind on any item sold Internationally or overseas