In fact, among the 3 tube preamps i created, this 6922 preamp sounds the best, it has the most resolution details and having excellent dynamics. These will all be tested on my tube imp mini tt valve analyser and will be individually tested sonically in. The suitability of the 6dj8 for audio tube audio store. Preamp tubes 6922 6dj8 7308 pcc88 tube basics and faq. 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. This tubes high end clarity and warm smooth mids make the jj e88cc and excellent choice for hifi preamps and amplifiers. The 6dj8 is a miniature ninepin medium gain dual triode vacuum tube. Ive also used the 12at7 in several phono builds, i believe it is a very underrated tube. Just suffice to say that this waswithout a doubtone of the biggest improvements ive ever made in my studioever. This tubes high end clarity and warm smooth mids make the jj e88cc and. Below is our current selection of 6922 e88cc 6dj8 audio tubes.
Platinum grade tubes, e88cc ecc88 6dj8 genalex gold lion pair. Nos siemens halske e88cc 6922 greyshield holy grail of the 6922 family. I like it so much that i searched for the best 6922 e88cc tubes to use in it. Most recently i have been active on the lyr tube rolling. The cca is an e88cc specially selected for post germany in the 1950s 60s, they were a special low noise, low microphonic, longlife e88cc 6922. Discussion in audio hardware started by steve hoffman, sep 24, 20. Valve tube of the day 6922 e88cc ecc88 6dj8 rock grotto. A pdf takes less storage space, and is easier to send with email. Pdfcreator download for free, download pdf printer, pdf. We also prefer the 7308s to the teslajj e88ccs which were also better than the sovteks. The mullard advert in 1957 introducing the e88cc gives the application areas as computing, switching and scaling. The jj electronic e88cc 6922 is a great replacement for any 6922, 6dj8, or e88cc tube jj implements a solid construction that those familiar with their preamp tubes will find familiar this tubes high end clarity and warm smooth mids make the jj e88cc and excellent choice for hifi preamps and amplifiers. I have lots of 69226dj8e88ccecc88 that i need to match, but the booklet that came with the tester does not include an entry for that tube.
Make pdf creator part of your the software suite you have installed on your computer for easy pdf creation. The siemens e88cc has the date code stamped on a metal plate inside the tube. These were the first 7308s i have used and was very impressed. After reading this post, i got myself a telefunken e88cc off ebay and now i am in love with this mic. You will find thousands of tubes or valves with interesting links. Jj e88cc 6922 vacuum tube the slovak heritage of superior industrial craftsmanship continues with the newly expanded line of jj vacuum tubes. Are you looking for the very best tubes for your vacuum tube amplifier. The siemen e288cc sounded 90% close to powderlettering tfk e88cc.
To my knowledge this tube has been produced only in soviet union the oldest sample i. Made in heerlenholland 0k4 made 197 0 in november k 4th week. Prior to starting ram tube works and music reference in 1980, he opened a highend retail store where he met and later worked for harold beveridge. The thin glass tube envelope is 20 mm in diameter and, excluding the b9a base pins, is 45 mm tall. For more information on 6922 e88cc 6dj8 vacuum tubes including pinouts, ratings, application and possible substitutions visit 6922 in wikipedia, 6922 in duncan amps, and 6922 in the tube directory. If looked at carefully, the fact becomes obvious that there are better choices for linearity, if and when you need high output voltages. One of the easiest ways, to tell them apart, is the specifications, for an e88cc, called for coated pins. U a0 550 v u ala0 400 v u a 220 v u aw ar e88cc silver shield this pair of siemens e88cc tube is from the later siemens production as it got the silver shield between the plates. Whats the real difference between a telefunken e88cc and a ecc88. An e88cc, is the european designation,for a 6922, and was made to be the industrial upgrade, to a ecc88. The tungsram 6922 e88cc is a perfect choice for phono stages and other hifi gear.
At the bottom, there is a number between the gold plated pins. Tube e 88c or rohre e88c id4035, triode, vacuum, noval, b9a and uhf shown. The jj electronic e88cc 6922 is a great replacement for any 6922, 6dj8, or e88cc tube. Welcome to hificollective, to create an account please register here.
But unless aesthetix were particularly pennypinching in the design of the calypsos power supply the extra 10% or so of current shouldnt bother it at all any valve will draw loads more than that for a few seconds at switchon. Siemens e188cc 7308 nos vacuum tubes for sale tubes unlimited. Measurement with siemens and telefunkens e88cc tubes. Vacuum tube 6922 e88cc, jj electronics antique electronic. The design is almost the same as the 12ax7 preamp, it is a single gain stage triode tube with cathode follower. This is a premium 69226dj8, with low noise and microphonics. Siemens e88cc silver shield this pair of siemens e88cc tube is from the later siemens production as it got the silver shield between the plates. That is indeed the best sounding tube i have, but the difference with the standard e88cc from philips is subtle. I did it before for my input tube for audion sterling eset. 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.
After finished my simple 12ax7 tube preamp, i decided to try other medium mu tubes, including the 12au7 and also this 6922. Download the free pdf converter and create pdf files from any application with pdf creator. Purchase 6922 e88cc vacuum tubes online, in stock and ready to ship. The codes are written in two lines on standard tubes and in two rows on special tubes as e88cc on the glass close to the base. E88cc and e288cc are interesting for low voltage low noise use. We got a sealed case of 100 pcs so we can provide extremely tight matching. U a0 550 v u ala0 400 v u a 220 v u aw ar e88cc vacuum tube.
The newly produced telefunken e88cctk gold pin tube resurrects the transparent tone and harmonic impact of historical. It is distinguished by its very high transconductance, mostly the result of its frame grid construction. Versions of the tube are named ecc88, e88cc, 6922, 6n23p, and 6n11. Tube depot carries a selection of 6dj8 6922 ecc88 e88cc cv2492 pre amp vacuum tubes. Tubes free delivery possible on eligible purchases. They have been commonly used in old tube test equipment and in radio receivers. 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. Can one tell visually if the tube has been used or nos. You even can look up radio models with a certain tube line up. Equivalent to the e88cc, 6dj8 and 7308 valve type too. I was lucky enough to stumble upon a philips e288cc sq. Depending on who the manufacturer is you might find that one or other of them has a 335ma heater rather than the much more common 300ma one.
They are premium, special version of e88cc with same capacitance for both triode systems, selected for low noise and microphonics. 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. I just wanted to write and say thanks for the 7308 cryotreated tube. Best of all, pdf creator is absolutely free for anyone to use.
I also tried looking up 7308, no luck there either. Thats why sometimes you can find the same tube written in latin which spells 6n6p. I also got some used e88cc and i notice the top of the tube is slightly brown. Vocals sound gorgeous, full and lush with this tube. Rode ntk tube replacement telefunken e88cc mullard 6922. Jj implements a solid construction that those familiar with their preamp tubes will find familiar. Actual tubes were tested on the stateoftheart amplitrex at electron tube test system. However there is an important difference, a 1k stopper resistor is added at each grid input. As expensive as telefunken tubes are, this was a lot cheaper than buying a telefunken cu29 which i still may do because id love to compare the. For example the king of all tube receivers siemens 125e101a has used 52 of them. These amazing tubes are known for their amazing soundstage and high fidelity. This post is made possible by the generous support of. I have always been amazed at the sound quality improvements that some of the better of these tubes made. Excellent dream tube for your rode mics or preamp, cd player cca lownoise e88cc 6922 premium quality gold pin e88cc.
The 6922 is the improved version designed to lower microphonics and improve life span. Diy audio projects forum 6dj8 ecc88 6n1p phonostage. Matched quad tesla e88cc 6922 nos tube valve valvola 6dj8 ecc88. The 6h6p has a different pinout, just like 6dj8, 9622, e88cc, 6h30, 6h41p, etc. I have three different types, even all grey u getter and d getter, the earliest types from 50s. What is the difference between 6922, ecc88, and e88cc tubes. Cca siemens, gold pins, one of the best sounding ecc88 6dj8 e88cc 6922 together with telefunken diamond mark and philips and amperex, possible close matching. Very sweet sounding, with extended dynamic range and remains quiet. These amazing tubes are known for their amazing midrange and detailed inner respolution and have some of the highest strength and test results we have seen in any 7308 e188cc tube. Hificollective uses cookies to give you the best online experiences. Rode ntk tube replacement telefunken e88cc mullard. The biggest and quickest improvement is over 6h30p the tube popularized by bat and its creator mr. If you are an audiofile, you owe it to yourself to pick up a pair of these nos tubes at an amazing price. 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.
1554 229 1648 1468 834 169 269 363 1271 1059 1300 1305 669 597 1278 65 856 731 1337 1191 1410 37 1063 925 1495 1406 931 373 1509 1434 267 1094 1520 296 807 369 1043 441 1004 1335 1139 545 1410 419 716 392 163