Versions of the tube are named ecc88, e88cc, 6922, 6n23p, and 6n11. One of the easiest ways, to tell them apart, is the specifications, for an e88cc, called for coated pins. The europeans used different model numbers to identify these tubes, by the way. Another noticeable omission is the mullard pinched bottle 6922 made by amperexphilips holland, which has been described as best of the best by audiophile. 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. Most have gold plated pins, but many sylvania manufactured 6922s have steel pins a few sylvanias are gold pin. Use of these parameters shall be entirely at the users own risk. I have been looking for this tube around the world through the net for the last 6 months and still without any. The principal reason for doing this was to avoid leakage resistance through the tube base, the bases were commonly made with phenolic insulation which performs poorly as an insulator in humid conditions. Dont trust it when a sellers offers those repeatedly for low prices. I was lucky enough to stumble upon a philips e288cc sq. Note ifyou already have an rca tube vatenblatt, and if the tubeslisted on the rca charts in the back are same as here, the pageswill be the same as what you. However, while in most applications it isnt a problem, the 6dj8 isnt always usable in 6922 applications.
Tube special qualty triode, e88cc datasheet, e88cc circuit, e88cc data sheet. The ecc86 is very special high frequency double triode. Well made vintage versions of this tube are quite low noise and can be found in many tube preamplifiers, phono preamps, and headphone amplifiers. It is distinguished by its very high transconductance, mostly the result of its frame grid construction. Jj electronic vacuum tubes, capacitors, amplifiers.
Despite joes lore, my british tube guru told me to try the cv 2493, because it is the only tube in the family that doesnt sound blike any other it is better. Pdf ecc88 6dj8 6n1p svetlana 6n1p 6922 triode 6dj8 6922 svetlana 6dj8 svetlana 9pin audio amplifier 6dj8ecc88bb. The biggest improvement i find is the noise floor, it is much quieter than the ax7, and also one gets a much more open and natural soundstage, almost like a veil being removed. The e88cc tube type is equivalent to the north american 6922 6dj8 tube and can be used in any 6922, 6dj8 or e88ccecc88 circuit. Reiu 120 120 200 7,5 2,5 5,2 300 25 1 180 120 200 7,7 2,4 5,1 500 highreliability tube vibration, 4,5 pf 2,8 pf 0. But as i only have one such tube, it cannot make the match this time. Warranty information and return policy warranty period. Ecc88 datasheet pdf, ecc88 data sheet, ecc88, ecc88. The e88cc tube type is equivalent to the north american 6922 6dj8 tube and can be used in any 6922, 6dj8 or e88cc ecc88 circuit. Pdf 6n1p datasheet download not directly compatible to ecc88, so a secret tip if you can design your won circuits. Just imagine a chassis with four noval tube in the center, flanked by 300bs. The most frauded tubes there are ecc803s and ecc88, because thes are practically unavailable as nos tubes.
Aug 14, 2019 pdf 6n1p datasheet download not directly compatible to ecc88, so a secret tip if you can design your won circuits. Pdf ecc88 6dj8 6n1p 6922 triode svetlana 6n1p svetlana 6dj8 6922 triode 6922 6dj8. In their numbering system the 6dj8 was an ecc88, the 6922 was an e88cc and the 7308 was an e188cc. The tube uses frame grid construction which allows closer grid to cathode spacing, thus enabling higher. The 6dj8 is a twin triode in a small 9pin miniature glass package, with a very high transconductance for each triode unit. Ive also used the 12at7 in several phono builds, i believe it is a very underrated tube. One triode acted as the local oscillator and the other as the mixer frequency changer. We offer some of the most comprehensive testing facilities available today. Double triode e88cc is the european name of 69226dj8. Watford valves, one of europes leading suppliers of tested, graded and guaranteed valves to the professional music industry.
Nos siemens pcc88 tube pair for 6dj8 6922 e88cc preamps. Feb 07, 2019 for a true happened story, read the world of nos. Ecc88 datasheet pdf the ecc88 is a vhf double triode with separate cathodes. Jul 15, 2019 ecc88 datasheet pdf the ecc88 is a vhf double triode with separate cathodes. The jj e88cc gold pin tube is a great alternative to ecc88, 6922 and 6dj8s for preamplifiers if you are looking for a warmer, smoother sound. Seeking an ultralow noise, ultra musical ecc808 6dj8 6922 for your phono or line stage here it is. Most have gold plated pins, but many sylvania manufactured 6922s. 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. 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. It is a higher speced tube, than the ecc88 6dj8 ie. Diy audio projects forum 6dj8 ecc88 6n1p phonostage.
Preamp tubes 6922 6dj8 7308 pcc88 tube basics and faq. This tube was also widely used in tektronix oscilloscopes and other. If even more gain were required, say to drive an 845 transmitting tube to full output, then a 6dj86922e88cc would do the job. The srpp circuit has also been referred to as a sepp, totem pole, mu follower, mu amplifier and cascoded cathode follower. 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. What i meant by con is if a tube is rated for a higher voltage ie 6922 and its used in a product that never reaches that high voltage, wont it not be used to its full potential. Ive tried lots of different tubes in the 69226dj8ecc88 tube family and the best sounding ive found are the late 50s, early 60s made in holland amperex ec88s with the. The jj e88cc tube is a great alternative to ecc88, 6922 and 6dj8s for preamplifiers if you are looking for a warmer, smoother sound at a low price. The ecc88 is a vhf double triode with separate cathodes.
Our thoughts go out to all who are affected by covid19. The newly produced telefunken e88cctk gold pin tube resurrects the transparent tone and harmonic impact of historical. This is not possible for the most wanted part numebrs. What is the difference between 6922, ecc88, and e88cc tubes. That is indeed the best sounding tube i have, but the difference with the standard e88cc from philips is subtle. It provides very smooth mids and high end with a lot of detail. Not even its more common little brother the cv2492 sounds as good.
This tube features gold plated pins and is manufactured to extremely tight specifications, making it the highest quality current production e88cc6922 available. This tube excist as normal grid tube and as frame grid tube. 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. This exhibit is of earlier manufacture than ecc88 as can be seen by the logo. The 6dj8 is a miniature ninepin medium gain dual triode vacuum tube. The 6922 6dj8 tube type is equivalent to the european ecc88 e88cc tube and can be used in any 6922, 6dj8 or ecc88 circuit. These specifications are provided asis, with no warranty of any kind.
Celebrating the history and quality of vacuum tube technology. This one has a lot of pages ecc88 the european philips tube manual. The 6dj8 ecc88 tube 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. 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. The ecc88 was designed for service as a cascode amplifier in the front ends of vhf radio receivers. I have a carver c19 pre and sda490t cd, both use 6dj8 tubes. The 6922 is the improved version designed to lower microphonics and improve life span. What is the difference between 6922, ecc88, and e88cc. This is one of many possible variations for a symmetrical srpp preamplifier based around the 6dj8 ecc88 family of tubes. The 12au7 delivers a gain of about 50 in above cascode input stage, which is enough to the drive the output tube to full output. High reliability version of 6dj8 with slightly higher power rating. An e88cc, is the european designation,for a 6922, and was made to be the industrial upgrade, to a ecc88.