Ecc88 tube pdf files

The europeans used different model numbers to identify these tubes, by the way. Please note with some not with all the print text has suffered somewhat from storage. Sorry bruce, i didnt mean to imply that this little amp doesnt model well. Well folks, its back again ill be offering a select valve every day which can be used in amps like the project, the indeed, the bravo, the aune t1 etc. Valve tube of the day 6922 e88cc ecc88 6dj8 rock grotto. This exhibit is of earlier manufacture than ecc88 as can be seen by the logo. Diy audio projects forum 6dj8 ecc88 tube headphone amp. Based on the limited info i can find on the internet, both 6fc7ecc89 and ecc84 have partial varimu characteristics and are suitable for agc in a cascode configuration. I have always been amazed at the sound quality improvements that some of the better of these tubes made. 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. So you take samples, you overload them for a certain time, and when too many fail the whole lot is rejected. This tube features gold plated pins and is manufactured to extremely tight specifications, making it the highest quality current production e88cc6922 available. It is a higher speced tube, than the ecc88 6dj8 ie.

How to open pdf file types on windows that are unable to open andor not displaying properly. Set it on ac, and if nothing is read, set it on dc. Dont trust it when a sellers offers those repeatedly for low ecc88. Rearrange individual pages or entire files in the desired order. On internet auction sites, tubes are relabelled, darenblatt plated, rebranded and used tubes are put in reprinted new boxes with the stamps nenewed. These are the later technology, and also a technology only dataaheet few could make. Unfollow ecc88 tube telefunken to stop getting updates on your ebay feed. Nos siemens pcc88 tube pair for 6dj8 6922 e88cc preamps. The only document that i can find on 6fc7 does not have any graphs. Click, drag, and drop to reorder files or press delete to remove any content you dont want. And by doing that the cleo has apparently unchanged doing its job in my audio rack sneaky as i am, i didnt tell anything to friends who came to visit me. High reliability version of 6dj8 with slightly higher power rating. These instructions dont follow every possibility with every model, but if you run through this one you will get the general idea.

Ecc88 datasheet pdf the ecc88 is a vhf double triode with separate cathodes. Tdsl tube data ecc88 this may help you more than changing tubes. Pdf ecc88 6dj8 6n1p 6922 triode svetlana 6n1p svetlana 6dj8 6922 triode 6922 6dj8 svetlana triode. So, we are going to apply the 6n30 tube in the existing cleo v. Discussion in audio hardware started by steve hoffman, sep 24, 20. It all sounded a tiny bit less spacious and ever so slightly more grey. One of the easiest ways, to tell them apart, is the specifications, for an e88cc, called for coated pins. The vi version is balanced and matched, per datasheet specification, this is highest quality. When i finally get around to building this, i intend to put a negative supply in the tail so i can experiment with it. The ecc86 is very special high frequency double triode. An e88cc, is the european designation,for a 6922, and was made to be the industrial upgrade, to a ecc88. 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 am not sure where you come up with the hours, except to say that covers power tubes as well, and is under manufacturers warranty.

At a time when af power transistors were replacing valves but no vhf transistors were available the ecc86 was designed to operate directly from vehicle battery supplies for car radio applications alongside transistors. Datasheet ecc88 pdf double triode 1page this may help you more than changing tubes. Used tubes of this type generally have more hum and noise. The nuvistor was developed by rca and it was first introduced in 1959. This tube was also widely used in tektronix oscilloscopes and other. Preamp tubes 6922 6dj8 7308 pcc88 tube basics and faq. Dont trust it when a sellers offers those repeatedly for. It is one of the earliest amperex 6922 types, with a slightly taller bottle than later 6922 tubes. The 6dj8 is a miniature ninepin medium gain dual triode vacuum tube. These beautiful siemens tubes are outofproduction and were made in w. Watford valves, one of europes leading suppliers of tested, graded and guaranteed valves to the professional music industry. To give you an idea, the size of a large bacteria is 5um. For ecc8183 leg 9 pin connected the center of the filament, so you can power the 12.

Hoofbeat comic pdf so you take samples, you overload them for a certain time, and when too many fail the whole lot is rejected. The 6dj8 is a twin triode in a small 9pin miniature glass package, with a very high transconductance for each triode unit. Click add files and select the files you want to include in your pdf. Most have gold plated pins, but many sylvania manufactured 6922s have steel pins a few sylvanias are gold pin. Hq tubes made for the czech post, from the rosnov factory code for a true happened story, read the world of nos. I do in my preamps, but amplifiers, expecially the output tube, this is a consideration that needs to be addressed. Has anyone seen a full datasheet with graphs for 6fc7ecc89 tube. You even can look up radio models with a certain tube line up.

Tube special qualty triode, e88cc datasheet, e88cc circuit, e88cc data sheet. Mostamperex, mullard, philips and valvo tubes are marked with a group of symbols which contain coded information relating to the type, place of manufacture or country of origin, and the date of manufacture. One triode acted as the local oscillator and the other as the mixer frequency changer. Swapping back to the eat ecc88 valve resulted in a sound that was a bit more open and lively, with more texture and presence. Any of the pictures down the left hand side can be clicked on for either a bigger picture, or a link to a web page. 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. You can merge pdfs or a mix of pdf documents and other files. We also show you how to delete pages if you change. Can you guys look it over and let me know if i am on the right track. Jun 20, 2019 when it writes on there ecc88, 1 as you see on the picture here this means this tube was made in germany, indicated by the number 1. In this tutorial you learn how to combine pdf files using adobe acrobat pro. This is not possible for the most wanted part numebrs.

It has been years since i had to source parts, and never audio grade. Heater psu for ecc88 leg 9 is connected to the shield that separates triode in the tube it can be shorted to ground. This is a very hard way of testing, since good tubes must still be rejected when they come from a production series where too many have failed the jan tests. Real siemens pcc88 are drop in replacements for ecc88 6dj8e88cc these beautiful nos siemens tubes are outofproduction. The ecc88 was designed for service as a cascode amplifier in the front ends of vhf radio receivers. Youre using an lm317 as a constant current sink in the 6dj8 ecc88 cathodes. Most recently i have been active on the lyr tube rolling. Kt90 note, larger 2 pages wide files, about 80kbytes each. The overall sound is slightly less refined and dynamics seem a little bit blunted compared to the eat sound. Ecc88 datasheet pdf some tubes from equipment are sometimes actually never datashret. This is the reason why jan tested tubes are so often agvailable as commercial tubes also. Ecc88 datasheet pdf what is best, we had a small lot, and we have been able to select them all in perfectly balanced and matched pairs.

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. Only do these measurements inside your amplifier, when you have experience with this. You reach this tube or valve page from a search after clicking the tubes tab or by clicking a tube on a radio model page. They were supplied with first class tubes by the manufacturers, and the country of origin is always printed on the tubes. Datasheet ecc88 pdf twin triode 1page datasheeg frame grid wire is so datashet, when you open up a defective tube, you can not see it with the bare eye. 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. Ecc88 tesla pdf eech test must be in between following limits. Universal pcb for tube pre srppccda ecc88 ecc82 tindie.

A while ago i started a valve of the day thread where i selected a prime valve tube from my stash of vintage russian 6n23p. So all datenbaltt systems of this pair are the same. Ecc88 datasheet, cross reference, circuit and application notes in pdf format. This rare 1959 amperex pq 6922 e88cc tube is a premium quality 6dj8 ecc88 type tube 7l4 series. When it writes on there ecc88, 1 as you see on the picture here this means this tube was made in germany, indicated by the number 1. Ive tried lots of different tubes in the 69226dj8 ecc88 tube family and the best sounding ive found are the late 50s, early 60s made in holland amperex ec88s with the. We offer some of the most comprehensive testing facilities available today. This is done by inserting pages from one file into another file. Heres a step by step for using the generic triode model with ltspice. Now of course manufacturers could still sell such tubes on the commercial market, but the military refused to take those. These were made for the military, as you can see from the sword signs on the back side of the tube. In their numbering system the 6dj8 was an ecc88, the 6922 was an e88cc and the 7308 was an e188cc. These specifications are provided asis, with no warranty of any kind.

The ecc88 is a vhf double triode with separate cathodes. Not directly compatible to ecc88, so a secret tip if you can design your won circuits. In many problem cases, the ecc88 is not used correct. From what i understand, the lm317s minimum output voltage is listed as about 1.

For other taylor tubes, see the entire 1945 taylor tube catalog in pdf format note, 1. Philips, alldatasheet, datasheet, datasheet search site for electronic components. Well made vintage versions of this tube are quite low noise and can be found in many tube preamplifiers, phono preamps, and headphone amplifiers. Ef860 ef80 pentode em80 tube 6dj8 tube em84 tube el500 ecl86 1t4t ecc189. They test all at 15ma, with grid voltage variation of less than 0,2 volt original old blue boxes. Tdsl tube data ecc88 unfortunally a big item particularly with this tube number. Nuvistors were the latest tube development at just about the same time as the introduction of the first integrated semiconductor circuits.

This tutorial will apply for computers, laptops, desktops, and. You will find thousands of tubes or valves with interesting links. Whats the real difference between a telefunken e88cc and a ecc88. Oct 11, 2019 kt90 note, larger 2 pages wide files, about 80kbytes each. Versions of the tube are named ecc88, e88cc, 6922, 6n23p, and 6n11. The low buffer tube ecc88 will make place for the 6n30. Not that my gear uses any 6l6s, but being a tube nerd i read it anyway. It is distinguished by its very high transconductance, mostly the result of its frame grid construction. How to merge pdfs and combine pdf files adobe acrobat dc. I pitched the idea of a 6dj8 shootout to noam shortly after i read tims 6l6 comparison. Most recently i have been active on the lyr tube rolling threads, but also use this tube in my modded dac, and in two. Our thoughts go out to all who are affected by covid19. All tube data there is, including evc88, gm, plate impedance, grid leakage, etc, and compare it against must be values. Try searching the tube data sheet locatorthe worlds biggest index of tube datasheets.