Ecc88 tube pdf printer

Dont trust it when a sellers offers those repeatedly for low prices. It all sounded a tiny bit less spacious and ever so slightly more grey. All the circuit gain is in the single output stage. Firstly some background i have always found it fun to upgrade some of the components in mf gear and i cant remember a time when it. 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. Ecc89 and ecc88 interchangeable micron tubes asylum tubes asylum. The ecc88 is a vhf double triode with separate cathodes. I was wondering if anyone could recommend the best brand i. Apr 10, 2020 please feel free to ask any questions and to post comments about the diy 6dj8 ecc88 tube hifi headphone amplifier project in this forum thread. Aug 04, 2008 just thougt id share some interesting experience in tube rolling in the ecc88 valve buffer stage of my modified mf kw250s recently. Im finding it increasingly hard to find good nos valves, particuarly at a price i am happy to pay. Any recommendations and a brief overview of their sonic characteristcs would be much appreciate.

Ive tried lots of different tubes in the 69226dj8ecc88 tube family and. Cutepdf convert to pdf for free, free pdf utilities. Warranty information and return policy warranty period. A all round great performing preamp tubes used in both hifi systems and guitar amps. They really dont stand out in the usual amplifiers driver stage and in. Nos siemens halske e88cc 6922 greyshield holy grail of the 6922 family. The design is almost the same as the 12ax7 preamp, it is a single gain stage triode tube with cathode follower. Comments and questions about this project are welcome in the 6dj8 ecc88 tube headphone amp project thread. The general type is noval meaning with 9 pins and the pinout is identical to many western novals like 6dj8, 6922, ecc88. Ecc88 6dj8 telefunken selected tube with red tips or tektronix labels, white label, west germany made, diamond mark. We offer some of the most comprehensive testing facilities available today. One triode acted as the local oscillator and the other as the mixer frequency changer. Real siemens pcc88 are drop in replacements for ecc88 6dj8e88cc these beautiful nos siemens tubes are outofproduction.

These beautiful siemens tubes are outofproduction and were made in w. Diy audio projects forum 6dj8 ecc88 tube headphone amp. They have several seams molded into the top of the tube. Ecc89 and ecc88 interchangeable micron tubes asylum. Yin for airiness a treble tilt, yang for a rich creamy midrange and tilt to the bass. Unfollow ecc88 tube telefunken to stop getting updates on your ebay feed. Nov 29, 2009 hi, just after some opinions on what people feel are the cream of the current production ecc88 valves. Fabulous original 1960s vintage white label german made telefunken ecc88 6dj8 tubes, bottom diamond marked and telefunken factory label coded.

The late great harry pearson founder of the absolute sound used the yinyang analogy. It is distinguished by its very high transconductance, mostly the result of its frame grid construction. For more information on 12at7 vacuum tubes including pinouts, ratings, datasheets, applications, and possible substitutions visit 12at7 in wikipedia, 12at7 in duncan amps, and 12at7 in the tube directory back to top. The highest quality speaker driver units that you can find. 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. This exhibit is of earlier manufacture than ecc88 as can be seen by the logo. 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. Ecc88 e88cc 6922 dual triode the ecc88 or 6922 is a miniature 9pin medium gain 33mu dual triode tube. Swapping back to the eat ecc88 valve resulted in a sound that was a bit more open and lively, with more texture and presence. This is the reason why jan tested tubes are so often agvailable as commercial tubes also. There are plenty of tube options as the tube headphone amplifier should work well with most the 6dj8 ecc88 and 6922 e88cc tubes. Instead of a physical printer, you can select adobe pdf in almost any windows or mac os application. The 6dj8 is a miniature ninepin medium gain dual triode vacuum tube.

I hope you enjoy this headphone amp project as much as i have. 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. High reliability version of 6dj8 with slightly higher power rating. Firstly some background i have always found it fun to upgrade some of the components in mf gear and i cant remember a time when it didnt reap some benefit. This is not possible for the most wanted part numebrs. It is a higher speced tube, than the ecc88 6dj8 ie. If i had an amp that took 6922, is it ok if i filled it with ecc88. This tube excist as normal grid tube and as frame grid tube. These specifications are provided asis, with no warranty of any kind. Tube depot carries a selection of 6dj8 6922 ecc88 e88cc cv2492 pre amp vacuum tubes.

E88cc ecc88, 6922, 6dj8, ecc 88 telefunken straight getter arm e188cc philips miniwatt 7308 e188cc philips used e188cc valvo 7308 holland heerlen e288cc siemens germany rebranded philips 8223 ecc88 6dj8 ei yugoslavia a frame philips construction bulk 49 eur mp ecc88 6dj8 ei yugoslavia ecc88 6dj8 philips dimpled disc getter a frame. The founder and main writer, who passed away last year, harry pearson was just an amazing. Do you think your design will drive hd600650 better. That is indeed the best sounding tube i have, but the difference with the standard e88cc from philips is subtle. Hi, just after some opinions on what people feel are the cream of the current production ecc88 valves. You even can look up radio models with a certain tube line up. An e88cc, is the european designation,for a 6922, and was made to be the industrial upgrade, to a ecc88. Ecc88 datasheet, cross reference, circuit and application notes in pdf format.

However there is an important difference, a 1k stopper resistor is added at each grid input. Seeking an ultralow noise, ultra musical ecc808 6dj8 6922 for your phono or line stage here it is. Versions of the tube are named ecc88, e88cc, 6922, 6n23p, and 6n11. These are the later technology, and also a technology only dataaheet few could make. I was lucky enough to stumble upon a philips e288cc sq.

Tube e88cc,6922, 6dj8,ecc88 valvo goldpin red print youtube. This is one of two premium versions of the 6dj8 tube. Since these tubes come in many different sizes and capacities, its very important to know exactly which type is right for your device before you proceed. Make pdf booklets, impose nup pages, combine pdf files, add watermarks, edit forms, add comments, add headers and footers, rearrange pages, security, digital signature, scan, ftp and much more. Nos siemens pcc88 tube pair for 6dj8 6922 e88cc preamps. I already tried a lot of tubes in the 6dj869227308 family, but this one outperforms them all. Mullard 6dj8 tubes are excellent as well, but are more difficult to find. The most frauded tubes there are ecc803s and ecc88, because thes are practically unavailable as nos tubes. Diy 6dj8 ecc88 tube hifi headphone amplifier project. The ecc88 was designed for service as a cascode amplifier in the front ends of vhf radio receivers. 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 stage.

The overall sound is slightly less refined and dynamics seem a little bit blunted compared to the eat sound. 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. Ecc83 telefunken 12ax7 e88cc telefunken 6922 straight getter arm dynaco st70 6gh8a driver board pc. I have a carver c19 pre and sda490t cd, both use 6dj8 tubes. This tube now replaces the sovtek 6922 which is no longer available. View pdf brochure for e88cc 6922 6dj8 jj electronics. Is the tube overly titled in one direction or another. Printing a file to pdf using the adobe pdf printer flattens the file. Most have gold plated pins, but many sylvania manufactured 6922s have steel pins a few sylvanias are gold pin. Computer fundamentals pdf format what is a pdf file. Just thougt id share some interesting experience in tube rolling in the ecc88 valve buffer stage of my modified mf kw250s recently. The tubes in the cd player only have about 10 hrs on them, but the sound isnt nearly as warm as it was before replacing the stock tubes. It has currently found a use as a driver tube in hifi tube amplifiers such as audio. This tube features gold plated pins and is manufactured to extremely tight specifications, making it the highest quality current production e88cc6922 available.

Both units were recently serviced and had sovtek tubes installed. The electroharmonix 6922eh tube is a brand new preamp tube. Now includes the form filler for free oneoff license fee. What is the difference between 6922, ecc88, and e88cc tubes.

The 6922 6dj8 tube type is equivalent to the european ecc88 e88cc tube and. Use of these parameters shall be entirely at the users own risk. The 6922 6dj8 tube type is equivalent to the european ecc88 e88cc tube and can be used in any 6922, 6dj8 or ecc88 circuit. Which are the best of current production ecc88 valves. Watford valves, one of europes leading suppliers of tested, graded and guaranteed valves to the professional music industry. After finished my simple 12ax7 tube preamp, i decided to try other medium mu tubes, including the 12au7 and also this 6922. Ecc88 datasheet, ecc88 pdf, ecc88 data sheet, ecc88 manual, ecc88 pdf, ecc88, datenblatt, electronics ecc88, alldatasheet, free, datasheet, datasheets, data sheet. So dont start spending fortunes on very rare tubes first try out the cheaper ones so you get a feeling of what you can achieve with tube rolling. You will find thousands of tubes or valves with interesting links. Celebrating the history and quality of vacuum tube technology. I visited another site, where the builder made ecc88 otl heaphone amp using 3 of ecc88 tubes, and found it is very interesting, too. These were made for the military, as you can see from the sword signs on the back side of the tube.

So it is excellent as a driver for power tubes like 845, 300b or 6c33c. Check the tube s top for ridges, the label for where it was manufactured and if everything checks out, buy it. Tube e88cc,6922, 6dj8, ecc88 valvo goldpin red print. Due to high conductance requirements, 6dj86922 type tubes require special construction called frame grid. One of the easiest ways, to tell them apart, is the specifications, for an e88cc, called for coated pins. Ecc88 6dj8 types e88cc 6922 7308 6dj8 ecc88 cca siemens telefunken philips brimar mullard amperex diamond bottom, golden pins, the best choice for audio d getter ecc88 6dj8 cca e88cc 6922 pcc88 e188cc 7308 7dj8 pcc189. Print to pdf creates an electronic copy of your file that you can save to disk. They often made 6dj8 tubes for other labels, like rca, zenith, and other usa brands.