Ecc88 tube pdf editor

Type the name of your logo in the popup window and click ok. Write for doityourself tv test chart and tube list to dept. I purchased a mp of amperex 6dj8ecc88 bugle boy large o ring getter made in holland tubes, mid 6os vintage for the following. The overall sound is slightly less refined and dynamics seem a little bit blunted compared to the eat sound. I had the same tubes 15 years ago, i use jj tesla el34 at the moment and they cant compare with nos mullards, please repond to my email. I hope ive enticed a few people to give this project a try. Electrical circuit simulator software circuit diagram images. A all round great performing preamp tubes used in both hifi systems and guitar amps. Tina is a powerful affordable circuit simulator for analog digital mcu and mixed circuits with integrated pcb design running both offline and online. These specifications are provided asis, with no warranty of any kind. A software solution allows instructors to prepare and reuse virtual labs. Use of these parameters shall be entirely at the users own risk. Since the 6dj8 sections will each be drawing about 12ma, the two of them together should draw around 24 to 25ma. Datasheets another electronics circuit schematics diagram.

It could be a sovtek 6922 lurking inside that crate for all you know. Use save as to save this new library with a suitable name. Ears manual describes these tubes as not being replaceable by the user, notwithstanding the relative ease of removing the case. Very similar in sonics to the e188cc mazda made dimple disc getter tubes listed above. Editor david price will, however, suspect i wrote the letter, your praise is so effusive. A pioneer promoter of ssb, fm, solidstate, easy construction projects, and the marriage of.

Mar 19, 2005 a question for all the tube enthusiasts. This tube features gold plated pins and is manufactured to extremely tight specifications, making it the highest quality current production e88cc6922 available. Sorry bruce, i didnt mean to imply that this little amp doesnt model well. Best free online circuit simulator element14 development. I took korens tube library and split it into pentodes, tetrodes and triodes and copyed the. Heater psu for ecc88 leg 9 is connected to the shield that separates triode in the tube it can be shorted to ground. Im thinking of changing the tubes in my headphone amplifier musical fidelity xcans v2 which has a couple of janphillips e88cc tubes.

Tube ech 81 or rohre ech81 id375, triodeheptode, noval, b9a and frequency converter shown. Firstly some background i have always found it fun to. This unusual tube is basically a 7308 e188cc in a slightly taller bottle. So take each tube on its own individual merits rather than judging it by its model number or pin material gold pins do not necessarily better sound. Universal pcb for tube pre srppccda ecc88 ecc82 from. Small signal dual triode intended for linelevel amp. Most have gold plated pins, but many sylvania manufactured 6922s have steel pins a few sylvanias are gold pin. Perform live, record mixes onthego, or enable automix mode and let djay mix your favorite playlist automatically. With the exception of the re c tif ie r tube, all a re of the m in ia tu re type. Proteus design suite is found in high schools, colleges and universities across the world, teaching electronics, embedded design and pcb layout to tens of thousands of students each year. I renamed the syms to kpentode, ktetrode and ktriode to id them as being used by the koren library. After finished my simple 12ax7 tube preamp, i decided to try other medium mu tubes, including the 12au7 and also this 6922. Dear sir, id like to order one matched quad for my dynaco st70. Sep 11, 2014 6n1p is a unique russian tube that will often work as a 6922 sub but it aint the same.

Im attempting to recreate a tester for 9 pin dual triode valves. It has to have a warm glowing appearance to look real. Visualizza altre idee su amplificatore valvolare, elettronica e radioamatori. Complete assembly of the famous ecc88 double triode. July 2008 another electronics circuit schematics diagram. Rare french mazda made 6dj8 tubes, not often found in the usa. For example, audio illusion 3a tube preamp is known to eat tubes because it is design to drive the tube hard. The formula calculates the frequency response based on the triodes amplification factor and plate resistance. Sacd and dvda player ratings are based on how they sound with their respective hirez media, not cd. The genalex gold lion e88cc 6922 tube is a suitable replacement for all 6dj8, ecc88, 6922, e88cc, and 7308 types. Bypassing preamp section of hybrid amp 2 channel hifi wigwam. Jun 20, 2012 im just not a fan of buying a tube hidden inside a glued on crate that keeps me from seeing what type of tube i actually bought. The sonic characteristics of this amp depends to a large extend on the choice of this input tube other dual triodes with the same pinout and filament voltage may be substituted to attain personal taste. W e will present some fresh looks at some old tube circuits and some altogether fresh tube circuits as well.

Pulls twice as much heater current as a 6922 and has different operating conditions so it will likely. Langfordsmith, editor, radiotron designers handbook, 4th edition, harrison. The design is almost the same as the 12ax7 preamp, it is a single gain. An e88cc, is the european designation,for a 6922, and was made to be the industrial upgrade, to a ecc88. The ecc88 is a vhf double triode with separate cathodes. Small signal dual triode similar to 6922, 691p, 6dj8. These siemens pcc88 are drop in replacements for ecc886dj8e88cc. Tube ecc 88 or rohre ecc88 id2488, double triode, noval, b9a and uhf shown. Jan 28, 2015 the 6cw4 nuvistor triode is roughly equivalent to a lilliputian ecc88, the 88 being one of the most highly regarded preamp tubes in use today. When i finally get around to building this, i intend to put a negative supply in the tail so i can experiment with it.

It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, wayne. Which are the best of current production ecc88 valves. The filament current draw is also slightly higher but for most applications it is plug and play compatible with the 6922, 7308, cca, or. Letters to the editor the tube cad journal welcomes letters from its readers. What is the difference between 6922, ecc88, and e88cc tubes. All of the 6dj86922 ecc88 e88cc we carry are plugin compatible where 6dj86922 is called for. He also was an editor of cq amateur radio magazine for five years before starting his own magazine. As i understood it and i could be wrong, the lm317 was replaced by a 100 ohm resistor, from the joined cathodes of the 6dj8 ecc88 sections to ground. A better approach to compensating feedback loops to add a capacitor between the grid and plate of the tube to which the feedback returns usually the input tube. It all sounded a tiny bit less spacious and ever so slightly more grey. It is distinguished by its very high transconductance, mostly the result of its frame grid construction.

Within a couple of years, he had 2,000 subscribers. The genalex gold lion e88cc6922 is a premium grade selected small signal twintriode that is a suitable replacement for all 6dj8, ecc88, 6922, e88cc, and 7308 types. Please share your views, opinions, design ideas, and critiques with us. This premium grade selected tube is the highest quality current production. This low power tube headphone amplifier is designed along the lines of the oddwatt power amplifiers, except that this headamp does not require a driver. Aes elibrary flutter measurements by the american standard. The 6dj8 is a miniature ninepin medium gain dual triode vacuum tube. I dont know anything about tubes, so any help on this matter would be very appreciated. High reliability version of 6dj8 with slightly higher power rating. The 6922 is the improved version designed to lower microphonics and improve life span. Proteus design suite pcb design and circuit simulator software.

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. I visited another site, where the builder made ecc88 otl heaphone amp using 3 of ecc88 tubes, and found it is very interesting, too. Letters should be brief and accompanied by your name, email address please indicate if we can publish your email address, city and country. Jan 28, 2005 i copied 3 tube symbols from misc to a new directory sym\tubes. I modified the sym pentode as it has 5 pins and changed it to 4 pins. Do you think your design will drive hd600650 better. Circuit simulation gives students a fast and fun practical learning tool. Pdf 51j4 6be6 tube 6ak5 tube 6ak5 rs tube scansu9x26 collins filter 12ax7. Chapter 6 digital audio recording 93 john watkinson types of media 93 recording media compared 96 some digital audio processes outlined 97 hard disk recorders 104 the. Proteus usb simulation is a unique product for developing usb device products. For realistic renders, take care to add appropriate appearance the the heater part. I want to try amperex tubes but they sell two models, 6dj8 ecc88 bb and 6922e88ccbb.

Audio research reference 250 kt120 black vacuum tube mono power amplifier reference series pair 28. In fact, it models spectacularly well with the ccs in the tails, and still surprisingly well with just a 100r resistor in the tails straight to ground which isnt supposed to work well at all. A list of circuit simulator softwares to download for free. Electronic circuit simulator spice simulation with. Surplus electronic equipment full of top quality items. Yes, there have been many long attachments detailing the build procedure, but its the pictures that take up a lot of space. Wondering if tinned copper would be an improvement over ofc. Also the circuit diagram for ecc89 cascode stage clearly implies agc.

The ecc88 was designed for service as a cascode amplifier in the front ends of vhf radio receivers. What is the difference between 6922, ecc88, and e88cc. Pulls twice as much heater current as a 6922 and has different operating conditions so it will likely change the sound of the amp. But really, it can be quite a shock to hear a good valve amp and im glad you like it and find it as beguiling as i did. One triode acted as the local oscillator and the other as the mixer frequency changer. Comparing the s curve graphs for ecc88 and ecc89 referenced by golfguru above it looks like ecc89 is indeed a semiremote tube. The rc network formed by this capacitor and the input gridstop resistor a 2k to 10k resistor which should be added if not present then becomes the dominant frequencylimiting network. This exhibit is of earlier manufacture than ecc88 as can be seen by the logo. View topic drop down menus for selecting your tube. He launched 73, a competing magazine, which promoted emerging technologies as doityourself projects. Sep 03, 2016 best free online circuit simulator posted by maxblack in development tools and solutions on sep 3, 2016 5. Tube depot carries a selection of 6dj8 6922 ecc88 e88cc cv2492 pre amp vacuum tubes. Nos siemens pcc88 tube pair for 6dj8 6922 e88cc preamps.

Versions of the tube are named ecc88, e88cc, 6922, 6n23p, and 6n11. Nos siemens halske e88cc 6922 greyshield holy grail of the 6922 family. I have a rule of thumb, that says that if all things are equal, that on a given piece of kit, you have to double what you spend, to get a worthwhile improvement. A listing of just some of the embedded peripherals models available as standard with proteus vsm. Real siemens pcc88 are drop in replacements for ecc886dj8e88cc these beautiful nos siemens tubes are outofproduction. Hello, im new to electronics but im learning a lot. It just means the tube will have a longer life in your amp.

Diy 6dj8 ecc88 tube hifi headphone amplifier project. Diy audio projects forum 6dj8 ecc88 tube headphone amp. Just thougt id share some interesting experience in tube rolling in the ecc88 valve buffer stage of my modified mf kw250s recently. Now, imagine if you could enjoy the bliss of an ecc88 without the size, the fragility, the heat you know, all of the stuff which transistors offer while throwing away the sound. Further factory selected version of electroharmonix 6922eh with gold pins. Musical fidelity mxhpa headphone amplifier portable audio. Our purpose the tube cad journal is a n online magazine devoted to tube audio circuit design. View pdf brochure for e88cc 6922 6dj8 jj electronics.