This twostage audio preamplifier is intended for use with highfidelity magnetic phonograph pickups. Buy tungsol ecc803s 12ax7 gold pin preamp vacuum tube. Make offer qty 10 empty white vacuum tube boxes for 6v6gt, 6sn7gt, 12sk7. Tube possible substitute western substitute ec86 6s3p, 6s4p 6cm4 ec88 6s4p 6dl4 e80cc 6n1p, 6n3p ecc82 6n1p, 6n5p 12au7 ecc83 6n2p ecc803, 6l, 12ax7 ecc85 6n3p 6l12, 6aq8 ecc189 6n23p 6es8 ecc802s 6n1p ev, 6n5p ecc82, 12au7wa, 6067 ecc803s 6n2p ev ecc83, 12ax7wa, 6057 ecc960 6n3p, 6n15p e90cc. Tube type selector switch filament potentiometers socket letter press notations data source a b l r 00a 5. For more constant parameters, the tfk ecc80s is the tube, since ecc803s is defines as having maximum 15% deviation. Tube ecc 803s or rohre ecc803s id18769, double triode, noval, b9a and shown. I177 series tube tester settings data antique airwaves. Power tube selection charts for highpower audioamplifiers eimac,rcapage 1, rca page 2. In my system the amperex brands sparkle without being strident.
Hello, the tube ecc803s tesla and identical to the tube ecc83, it is a retort of the professional version made by telefunken in germany. It was released for public sale under the 12ax7 identifier on september 15, 1947. Tube pcc 84 or rohre pcc84 id2558, double triode, noval, b9a and vhf shown. When i test the ge 83 tube in hickok 752, i can see a blue glow but not in sylvania 83. For more constant parameters, the tfk ecc80s is the tube, since ecc803s is. The reason for the different part number was not intended by telefunken company to offer a product with a price in between ecc82 and ecc802s.
The valve features gold plated grid, top getter and a spiral filament to reduce hum and noise. Telefunken ecc803s matched pair tube museum new york. Diagram and data including transformer winding data for building a 75w ab2 amp using 6l6 or 807 page1, page 2, page 3, page 4, page 5, page 6, page7, download a zip file of all fgiles on the 75wab2 amplifier by clicking here. Ecc803s rare goldpins made by telefunken of western germany diamond bottom ecc803s tubes are extinct. Tungsol gold 12ax7 ecc803s, matched pair by unknown. Jj has used long 17mm plate design used in the 1950s by mullard with a longer fin to improve heat dissipation. The circuit is from the rca tube receiving manual and meant for use with the famous rca 7025 twin triode. It was developed around 1946 by rca engineers in camden, new jersey, under developmental number a4522. Like all jj preamp tubes, these are built into a rugged package using the spiral filament and. With almost datasheets and the visitor counter indicates over 4000. It retains all of the definition and detail that the ecc83s short plate and the ecc803s long plate tubes have but it has slightly less gain than the ecc83s. Ecc803s telefunken gold pins dual triode tube world.
The mutual conductance values listed are averages for new tubes and only for a guide. Telefunken and tesla did make frame grid variants of 12ax7ecc83 11. The ecc801s and ecc802s, which are upgrade substitutes for 12at7 and 12au7 respectively, dont have the gold pins by the way. For the rest, this tube is pretty much average with the data. Test results of the jj ecc803s long plate vacuum tube. We are releasing only one 1 single tube from the tube museum for one lucky audiophile to enjoy. If you look at the hard cover tube amp book from groove tubes you will find pieces by me. Jj electronics tecc803sjj vacuum tube jj 12ax7 long. Tube 12ax7 ecc803g, gold plated pins, reissue vintage classic tube nn099g. Ecc32cv181 mullard specifications not an exact 6sn7gt substitute 6. New unused in box, matched pair eat cool valve ecc803s 12ax7 ultra premium vacuum tube the cool valve ecc 803s is the finest twin triode with separate cathodes available in todays market. The 12ax7 was originally intended as replacement for the 6sl7 family of dualtriode amplifier tubes for. As a side note, the data sheet on this tube is a flat duplicate of a 12at7 data sheet from all tube makers from the past. These features made them especially suited for differential amplifiers in such instrumentation as pen recorders and bridge circuits.
Mike wanted a bit of data on some of the tubes used in the new producer from the folks at 65 amps. The good thing of the telefunken is the very high lifetime expectation, lowest hum and lowest noise. It utilizes a medium length ribbed plate design that is much like the old amperex and brimar european designs. Telefunken ecc803s 12ax7 tubes steve hoffman music forums. This is done in case of equal tube type numbers for different tubes. The reason was, 6211 is a low voltage switching tube, and has not the same data as ecc802. Ecc803s rare goldpins made by telefunken ecc803s matched pair telefunken of western germany diamond bottom ecc803s tubes are extinct. Jj electronics tecc803sjj vacuum tube jj 12ax7 long plate vacuum tube. This datasheet shows the way an ideal tube would bias. For other taylor tubes, see the entire 1945 taylor tube catalog in pdf format note, 1. El83 6ck6 valves in place of el84 post by nicko fri dec 05, 2014 5. Buy jj ecc803s 12ax7 vacuum tubes online, in stock and ready to ship. Jj electronic ecc83 s usa code 12ax7 premium tested amp.
The simplest vacuum tube, the diode, contains only two elements. The jjtesla ecc803s is a warm sounding large long anode plate designed ecc83. Ecc32cv181 mullard 1950s very wellbalanced tube from top to bottom. Perhaps this meets the vendors minimum tolerance requirement for a new tube but it doesnt meet mine. Vacuum tube ecc803 12ax7, jj electronics, long plate. The jj ecc803s is a hiperformance 12ax7 with a spiral wound filament to reduce. Even changing tube manufacturers with the same tube can have a large effect on tone in a mic. Book depository books with free delivery worldwide. Jj ecc803s some of the hifi guys think this is the second coming of the fabled mullard and telefunken tubes of yore. Double triode quick reference data anode current ia1,2ma transcoductance s1,6mav amplification 100 heating heating is indirect by ac od dc, with serial or parallel supply. There are also qa numbers on some current production tubes that are quite good. At the bottom of this page youll find some links to other tube datasheet sites in case you cant find what youre looking for here.
Herein you will find a collection of vintage engineering texts, vacuum tube datasheets, and other obsolete information, presented free of charge and without annoying advertisements. Tubes free delivery possible on eligible purchases. It has the same deep, tight low end that the ecc83s has but the mids in the ecc803s are even thicker and more harmonically complex than the ecc83s. Vplate300v, iplate50ma, vfilcathode50v, pwatts5 typical operation. Free shipping is limited to the contiguous 48 states. First we start with this standard data, from the muiderkirng book. Eirc electronic tubes factory data sheet ecc8312ax7 page 1 of 4 ecc83 is a. A good tube for upgrading the stock 12ax7 of my integrated amplifier. I tested this ecc803s upon arrival and it tested at 83% on triode 1 and 87% on triode 2. The underscore and these letters are not part of the tube type number. Since tubedepot is in memphis, tn, the home and main hub for fedex and usps, we get very good rates, so rest assured your heavy item will be shipped at the most affordable rates. The honeywell pen recorders used the e182cc for optimum performance. Quality is excellent, and of one exceptional reliability, equip 41.
The following list shows the tube types i have entered in my database, with exception of the service types e. Ecc8312ax7 page 1 of 4 franks electron tube data sheets. Vacuum tube ecc803 12ax7, jj electronics, long plate image 1 vacuum tube ecc803 12ax7, jj. It also has very good bass resolution, but bass is not exteremly deep due to higher plate resistance woo audio wa6 modded apex peak single tube hybrid headphone amppreamp liquid glass headphone amp by cavalli audio audio aero capitole. And expensive to get ones suitable for a phono application. Jj electronics tecc803sjj vacuum tube jj 12ax7 long plate vacuum tube by. The e182cc was designed with both an antimicrophonic construction and with two matched triodes within the envelope. Tube test data for use with the tube testers i177, i177a, and i177b note f. Eat cool valve ecc803s aka 12ax7 shop music direct. I have a hagerman cornet 2 phono pre which is the only tube gear in my chain. Eat ecc803s 12ax7 tubes matched pair tubes audiogon. I think the ecc803s is actually a lot like the svetlana winged c 12ax7 that i currently use in v3. Or that hackneyed phrase about a blanket over the amp. As you indicate, it is a different tube than the 12ax7 more than fancy gold pins, the ecc803s has a different grid construction.
Jul 19, 2005 as you indicate, it is a different tube than the 12ax7 more than fancy gold pins, the ecc803s has a different grid construction. Jj electronics tecc803sjj vacuum tube jj 12ax7 long plate. Heater voltage vf 6,3 12,6 v heater current if 300 150 ma. Great middetail and very romantic sound with zero harshness, not grainy. Order tungsol 12ax7 ecc803s gold vacuum tubes online, in stock and ready to ship. Im planning to replace the ecc83s in v2 with the gt tube as well. Noval u f 6,3 or 12,6 v i f 800 or 400 ma typical characteristic. Today i spent a bit of time working with mike franceschini over at 65 amps.
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