Dec 21, 2014 output spectral analysis of tube buffer with variable second harmonic, and volume control. Jj ecc82s versus ecc802s tubes canuck audio mart hifi. Download a zip file of all 12au7 pages byclicking here. In television receivers the ecc82 was used as frame and line timebase. It was widely used, in specialquality versions such as ecc82 and 5814a, in presemiconductor digital computer circuitry. However, you do need to follow some standard tube layout and construction procedures. Headphone amplifier and 12au7 tube is powered by just 12v dc voltage. Tube ecc 82 or rohre ecc82 id1050, double triode, noval, b9a and universal shown. Ecc802s 12au7 ecc82 tube srpp preamp build details. Ecc82 datasheet, ecc82 pdf, ecc82 data sheet, ecc82 manual, ecc82 pdf, ecc82, datenblatt, electronics ecc82, alldatasheet, free, datasheet, datasheets, data sheet. If you cant find what you need here, try duncans tube data sheet locator.
Frank philipse pocnet mirror patrik schindler, 12au7. The advantages of such a line stage are much the same as those when a srpp is used as a driver. Output spectral analysis of tube buffer with variable second harmonic, and volume control. Tube socket converter adapter russian 6n2p or 6n2pev to 12ax7 ecc83. To my knowledge this tube has been produced only in soviet union the oldest sample i found was.
The jj ecc82 valve double triode is used in preamp circuits, and phase splitter applications. I tried ecc81, does a good job, but need less gain for sure. Somebody told me that 8381s are interchangeable but 83 and 82 are not. Compress, edit or modify the output file, if necessary. My pre came stock with a set of the jj ecc82s gold pin 12au7. The videos are always converted in the highest available quality. Twotube converter, using the 12ek6 pentode as an rf amp in front of a 12ad6 pentagrid converter, with a switch swapping out a crystal and coil for each band. Just curious as to what the sonic character of the long plates might be compared to the ecc82.
The design is exactly the same as the 12ax7 preamp, it is a single gain stage triode tube with cathode follower. The tool will instantly upload and transform the file into a pdf. Just unplug your 12ax7 tube, plug in the adapter, and then plug in 6n2p tube and you are ready to rock. All 12at7 ecc81 6201 cv4024 12au7 ecc82 cv4003 5814 12ax7 ecc83 cv4004 5751 6922 6dj8 7308 pcc88 6sl7. Our service is for free and does not require any software or registration.
Standard replacement for all circuits requiring 12au7ecc82 types. A guide to ecc83 type preamp valves valve tube guitar amps. Eirc electronic tubes factorydata sheetecc8212au7page 1 of 4telephone. Vacuum tube 12au7 ecc82, jj electronics antique electronic.
The difference again is that the gold pin tubes are a little smoother and richer sounding and the long plates have a. Vacuum tube 12au7a ecc82, electroharmonix amplified parts. In most cases the tubes manufactured to the european system have an exact equivalent tube in the american system and vice versa. Hi there, ive now listened and analyzed countless 12au7s and its equivalents and thought id give my opinion on my current favorites. See also ecc82 from mullard that designates the valve with both the mullard ecc82 and the american 12au7 designations. Vacuum tube 12au7 ecc82, jj electronics amplified parts. Quick reference, connected to earth, the more favourable triode section of the tube with regard to hum. Eirc electronic tubes factorydata sheetecc8212au7page 2 of 4telephone.
Etc2, alldatasheet, datasheet, datasheet search site for electronic components and. You can access the free pdf file converter anywhere, with an internet connection. Tube depot not only sells vacuum tubes we also carry an extensive line of tube mount sockets, holders, adapters, bases, tube retainers and much more. Double triode quick reference data anode current ia10,5ma transcoductance s2,2mav amplification 17 heating heating is indirect by ac od dc, with serial or parallel supply.
Vintage european and us 12au7, ecc82, 5814a, 6189, 7316, cv4003, and m86 tubes in stock now, fully tested and guaranteed. Guys, have quite expensive vintage amps and to increase headroom of input stage i want to put ecc82 tube instead of schematics 83. Double triode,alldatasheet, datasheet, datasheet search site for electronic components and. Ecc8212au7 page 1 of 4 franks electron tube data sheets. Double triodequick reference dataanode current ia10,5ma datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. Ecc82 circuit to work with 6h6p first cut the traces or wires joining pins 4 and 5. The 6sl7 type of valve has the same base as output valves such as the 6v6, 6l6, el34 etc and were bulky, so the ecc8x family made a lower power, much smaller preamp valve. The ecc82 or 12au7 is a miniature 9pin low gain 17mu dual triode tube. Another common name for the 12ax7 tube is ecc83 and for premium versions the 7025 and ecc803 audio tubes.
Vacuum tube accessories vacuum tube amplifier sets vacuum tubes wire yellow jackets tube converters. The ecc82 is a dual triode vacuum tube with medium gain and low noise characteristics, making it ideal for hifi audio equipment and instrument amplification. Please note that we can only convert videos up to a length of 1 hour the limitation is necessary, so the conversion of any video will not take more than a couple of minutes. J j electronic ecc802s gold pin 12au7 factory data sheet. Tc tubes and audio repair repair services include tube and solid state gear, turn table setup, and tubetesting in twin cities metro area. Text in other languages may differ dimensions whd incl. Pdf converter convert files to and from pdfs free online. The ecc82 valve also known as a 12au7 is a low gain preamp valve used in guitar amps and hifi ampliers. The entire 1945 taylor tube catalog in pdf format note, 1. Smallpdf pdf converter operates fully in the cloud.
Ecc82 pdf, ecc82 description, ecc82 datasheets, ecc82 view. Main problem is the heavy use of nowunavailable ironcore ceramic coil forms. My pre came stock with a set of the jj ecc82 s gold pin 12au7. It has a centertapped heater filament so it can be used in either 6. If we actually want to design a simple, puretube line stage for hifi i use the. The use of this valve will give more headroom and clarity and lower the gain on a. Due to the combination of low gridplate capacitance and medium gain, it is suited for use in audio voltage amplifier with an extended frequency range. For this we use a halogen lamp transformer from the shop or any other transformer with minimum 10 va and the secondary from the range between 12 and v ac. Vacuum tube 12au7a ecc82, tube amp doctor, premium selected.
This tad 12au7a ecc82 has especially strong systems which are selected to provide. Double triode, ecc82 datasheet, ecc82 circuit, ecc82 data sheet. This 12au7 offers smooth tones and clear definition which is why its no. The output stage of the circuit is a cathode follower and is suitable to drive a low impedance amplifier. Please see the substitutes at the top of the page for more details. This schematic below is a simple two stage linelevel preamplifier using a single 12au7 ecc82 tube per channel. We have the ecc81 ecc82 ecc83 was introduced specifically for audio applications way back in 1954 to replace the earlier 6sl7 octal based valves. I see there is a ecc802s gold pin version that has long plates. Tube amplifier setsvacuum tubeswireyellow jackets tube converters.
Classa 12au7 tube headphone amplifier circuit wiring diagrams. Vacuum tube 12au7a ecc82, tube amp doctor, premium. Also popular for hifi applications that want the lowest noise possible. Pretty much everything in the preamp is standard tube amplifier construction. Ecc82harma retro harma valves the harma ecc82 is designed on the ladder plate design that was used by mullard and philips. Novaltypical characteristics and operating conditionsanode voltage datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. We test each jj ecc82 preamp valve on our analogue and digital testers and give a 120 day warranty. The thin glass tube envelope is 20 mm in diameter and the length excluding the b9a. However, for reasons which will become obvious, the ecc82 is the valve of choice, so i used this for. The tube is popular in hifi vacuum tube audio as a lownoise line amplifier, driver especially for tone stacks, and phaseinverter in vacuum tube pushpull amplifier circuits. Another 12au7 variant from jj which is a long plate gold pin version of the ecc82 tube.1030 456 1198 1351 30 175 717 488 1381 69 1078 1128 963 1344 983 309 660 1037 410 1343 771 599 1012 1064 281 234 1262 787 1220 627 1053 1313 1473 1598 664 1150 760 1092 1408 37 1452 738 1463 972 1112