Mullard el34 tube mediumgreen quartet musicians friend. Shuguang vacuum tube cross reference table type part number cross reference triode 2a3b2a3 2a3c 2a3c2a3 2a3b 300b98b300b 300b98 300ba300b 300bsb300b 211 gl211 and uv211 beam tetrode el34 b kt66 kt8898kt88, 6550 and cv5220 5881a5881 6l6g, 6l6ga, 6l6gb and 6l6gc 6l6gcr6l6g 6l6g and 5881 6p3p 6l6g. Jj e34l vs ruby el34bstr ruby el34bstrs are a special tube request, relabled power tubes made by shuguang in china. Most of the datasheets are in pdf format and some are links to other html pages. A different construction of the classic el34 tube that offers a different tonal palette than the original. Ella push pull el34kt88 amplifier schematic diy hifi supply. Ruby tubes are matched both by plate current and transconductance and come with a 6 month warranty. It was developed around 1946 by rca engineers in camden, new jersey, under developmental number a4522.
Vacuum tube el84, tube amp doctor antique electronic. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Very smooth and balanced frequency response that sounds great driving celestion speakers which tend to be a. Output pentode output pentode rated for 25w anode dissipation, intended for use in a.
All these links open in a new browser window so that you can return quickly to this page without having to reload. Tubes a completely new el34 tube, rich sound, very solid thomann uses cookies to give you the best shopping experience. El37 was of pinch construction whereas for the el34 mullard used the pressed glass foot construction employed on the b9a and b7g miniature. Class a1 singl tube pushpull u a 250 v 270 v u g2 250 v 270 v u g1 14 v 17,5 v i a 72 ma 4 ma i g2 5 ma 11 ma r a 22,5 k. Most of the parts are in stock except transformers. Discussion in the workbench started by rickylee, sep 17, 2018. On amps with high plate voltages that are above what the screen is rated to take, this maymay not be enough of a drop to keep the screen voltage within safe limits. Tube amp doctor opted for the thickest glass possible and the heaviest construction available, just like the russian el84m, and combined these features with the sonically most promising cathode plate option. The el34 is smaller in diameter and taller than the 6l6 and is capable of a higher plate voltage. Vacuum tube el34b str, ruby tubes antique electronic supply. An audio frequency generator was used to sweep from 10hz to 20khz with the input voltage measured at the 6l6gc control grid and the output voltage measured at the output transformer secondary winding while connected to an 8 ohm load. The kt88 is also suitable for use as a series tube in a stabilised power supply.
The el34 is a much loved audio power valve with an anode dissipation of 25 watts. They have the same gold plated grid and extra thick glass as the bstrs, but with. El34 world tube amp building information the el34 world tube amp library of information click the link above for tube amp info, tube amp schematics, tube amplifier circuit board building information, tube projects, amp mods, tube amp transformer diagrams, photos, sound clips. The 50hz measurement was used for lows, 700hz for mids and 6khz for highs. Rubycon datasheet, rubycon pdf, rubycon data sheet, rubycon manual, rubycon pdf, rubycon, datenblatt, electronics rubycon, alldatasheet, free, datasheet, datasheets. This tube has a more compact plate structure than standard el34s. Get a low price and free shipping on thousands of items. This is a very rare tube that is a direct replacement for the el34 or 6ca7.
El84 datasheet pdf pentode triode, vacuum tube philips. Tube depot carries a selection of 12ax7 ecc83 7025 cv4004 pre amp vacuum tubes. This is the improved pushpull mullard el34 tube amplifier circuit. El34 datasheet, el34 pdf, el34 data sheet, el34 manual, el34 pdf, el34, datenblatt, electronics el34, alldatasheet, free, datasheet, datasheets, data sheet, datas. The jj el34 ii is stronger than the original but not harsh sounding in any way. No honk and no really pronounced eq shelving as you manipulate the tone controls of the amp. Shuguang beijing vacuum tube datasheet analog metric limited.
The difference is in the range of 34 ma plate current. The ruby el34bstrsel34bw are a new high gain tube developed by ruby and manufactured by shuguang. Each wound string is precision wrapped with round nickelplated steel onto a high carbon, hexagonshaped steel core. This makes ruby 6l6gcmstr one of the most rigorously tested 6l6gc anywhere. It has an international octal base indicated by the 3 in the part number and is found mainly in the final output stages of audio amplification circuits and was designed to be suitable as a series regulator by virtue of its high permissible voltage between heater and cathode and other parameters. Octal u f 6,3 v i f c a0,9 a typical characteristic. There are hundreds of pages of tube amp information on my library page. Output pendode el34 is an octal power tube with a maximum plate power of 25w. Kt90 and types and brands exist, and what you can do with the this tube. Ruby amp project version 2006may26 copyright 2005 jd sleep permission refused for postingserving this file from any site other than. Tube amp doctor opted for the thickest glass possible and the heaviest construction available, just like the russian el84m, and combined these features with the sonically most promising cathode plate options, in order to meet and exceed the tonal quality of the el84cz.
The amplifier circuit shown uses the dynaco a420 audio output transformers which have a primary impedance of 6600 ohms. Output pentode suitable for use in power amplification quick reference data anode current ia100ma transcoductance s12,5mav amplification mg2g111 output power, class b wo100w heating heating is indirect by ac or dc, with parallel supply. Jj electronic vacuum tubes, capacitors, amplifiers. It was released for public sale under the 12ax7 identifier on september 15, 1947.
Perfect for modern gain, these have unique a wall of sound break up, very articulate. Mullard el34 pushpull tube amp schematic with dynaco a420 transformers. Class a1 singl tube pushpull u a 250 v 270 v u g2 250 v 270 v u g1 14 v 17,5 v. The tube has a nice balanced sound that is not as bottom heavy as say the tad and not as bright as the sed. They have a gold plated grid and extra thick glass.
You can use acrobat for viewing and printing pdf files. The sound can be described as very harmonic in the middle and treble frequencies, without adding too much power. With a 1k screen resistor this translates to a 3536 volt drop of the screen voltage at full clip. The 12ax7 was originally intended as replacement for. Vacuum tube el84, tube amp doctor antique electronic supply. Not excessive in tops, mids, or bass, they are accurately described as well balanced. Ruby el34bstrs when you turn the volume up are going to break up much sooner than jj e34l power tubes, and will sound warmer. Here youll find a modest collection of datasheets for some popular tubes.
One of the more interesting tubes are tad 6l6gcstr rca and tad 6l6gcstr clear top. It is intended for audio frequency power amplification service in either pentode, ultralinear or triode connection and single or pushpullparallel applications. Mullard el34 pushpull tube amp schematic dynaco a420. The jj el34 ii has an increased low to lowmid end with plenty of headroom to spare.
Prices include testing, selecting and matching by ruby tubes. At the bottom of this page youll find some links to other tube datasheet sites in case you cant find what youre. A new el34 ruby tube from china designed to handle up to 600 volts on the plates. El34b datasheet, el34b pdf, el34b data sheet, el34b manual, el34b pdf, el34b, datenblatt, electronics el34b, alldatasheet, free, datasheet, datasheets, data sheet. Also the most common electrical circuits are given for kt88 and 6550. The schematic is from the book build your own audio valve amplifiers by rainer zur linde. Our new ehx strings electroharmonix electric guitar strings are customdesigned to our specifications and made in the usa by a premiere string manufacturer. The el34 is a thermionic valve or vacuum tube of the power pentode type. I have only seen versions made by genalex marconiosram valve co. A typical el34 at idle will draw roughly 5ma, while reaching 3536ma at full clip.
Just take account for the higher voltage when adjusting bias, so you set it a little lower to obtain the wanted watt rating. Output pentode output pentode rated for 25w anode dissipation, ntended for use in a. Page 3 of 3 el34 6ca7 high performance audio power pentode the svetlana el34 is a glass envelope power pentode having a plate dissipation rating of 25 watts with convection cooling. The kt88shuguang has an absolute maximum anode dissipation rating of 50w and is designed for use in the output stage of an a. Most of these datasheets are in english except where noted otherwise. If you continue browsing, you agree to the use of cookies. Get the guaranteed best price on power tubes like the mullard el34 tube at musicians friend.
The early genalex kt77 had a skinny bottle with a flat top. The sound is loud and clear with a very nice sonic range. A valid alternative to very expensive caddock is to use a parallel of two normal 1% metallic oside resistor with inverted phase to compensate some of their inductance. The ruby el34bhts were developed for very high plate voltage applications. Vacuum tube el34b str, ruby tubes antique electronic. The claim of 300 watts for a duet of these kt150s is an interesting claim. Caddock resistances on cathode, elna cerafine capacitors on cathode. Pdf scanned from an original document held by the museum. Then again, an el34 has a 25 watt max plate spec yet four of them in some amps produce 140 to 170 watts without issue.
View and download ruby tech es2310c specifications online. El84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual. We are adding back in kt88z, 6ca7z el34, 300bz, cv181z exact replacement of 6sn7 and the most recently 6sl7z exact replacement of 6n9p models of shuguang treasure black bottle tubes with our newly formed quality control collaboration with shuguang tube factory. Get the guaranteed best price on power tubes like the ruby el34 matched power tubes at musicians friend. Two tubes in class ab1 give a continuous output of up to 120w.