With a tube phono I really like the Sovtek 12AX7LPS tubes and the newer Mullard CV4004/12AX7 tubes. Both of these Tung Sol 12AX7's are ECC803S. Widely used across guitar amplifiers and hi-fi applications. Looks an awful lot like the Sovtek 12AX7LPS, I wonder if it's the same tube rebranded? Here you will find vacuum tube based amplifier, preamplifier and headphone amplifier kits, speaker kits, finished high end tube audio products, reel to reel tape machine upgrades, parts, and one of the finest support communities on the web. As with the OR15, if you put the gain above the first notch, the sound will not be clean anymore. Sovtek 12AX7WXT+: A little better than the WA's and WB's. Rounder and more linear when clean but brittle. Gold-Pin version is recommended for use with gold plated tube sockets. The 5751 has the same plate resistance as the 12AX7, but the gain factor is only 70 compared to 100 for the 12AX7. The Tung-Sol reissue 12AX7s are OK, but darker, rounder sounding. The russian NOS EL84 was born as 6P14P in the Saratov plant and was designed for the use in military vehicles and equipment. The 12ax7 tube is arguably the most popular audio vacuum tube that has ever been created. ECC83/ 12AX7LPS-SOVTEK Sovtek The Sovtek 12AX7LPS the first choice of many audio manufactures as it is . The Sovtek just seems more zesty. Jj electronicECC83S 12AX7 7025 Preamp Tube JJ ELECTRONIC ECC83S 12AX7 7025 Preamplifying Tube is a high gain double triode. They also have a nasal like sound. Feedback received from Steven D. I think . I also kept the JJ ECC83S in the reverb driver/receiver slots for all experiments. For less gain, you can replace a 12AX7 with 5751, 12AT7, or a 12AY7. I use a JAN GE 5751 or Sovtek 12ax7lps for my PI tubes. I generally prefer long plate ones, and I haven't tried the JJ one, their ECC803S, but their regular ECC83/12AX7 (with the frame grid) is a little too dark for my taste. All 12AX7 tubes have an amplification factor (μ) of 100 ("high-mu"). 16uF @ 475V 12x30mm electrolytic capacitor, axial, 105°C. Pc-usb supports 24bit 192khz and is compatible with Windows/Mac/Linux system. JJ ECC803S. These are smooth-sounding as well. The only new current production item being the Sovtek 12AX7LPS. Sovtek 12AX7LPS and JJ ECC803S - besides slightly higher gain, nothing to write home about. Ecc81 vs 12ax7. The EHX 12AX7 (or Electro Harmonix ECC83, Electro Harmonix 7025) is a high-gain preamplifier tube made by renowned brand, Electro Harmonix. With a tube phono I really like the Sovtek 12AX7LPS tubes and the newer Mullard CV4004/12AX7 tubes. Another common name for the 12AX7 tube is ECC83 and for premium versions the 7025 and ECC803 audio tubes. From €19.40 *. 4.6 out of 5 stars. . Vacuum Tube - 12AX7LPS, Sovtek - 9 pin miniature preamp tube (Amplification Factor = 100). For first stage use, where you want low noise and microphonics, pick an EH 12AX7. The JJ ECC803S gold pin tube replaces all 12AX7 Tube Types. Mar 26, 2008. I guess the same can be asked about the Shuguang and JJ tubes. ECC83/ ECC83S-JJ TESLA JJ Tesla The JJ ECC83S uses the anode construction pattern of the frame grid designed Telefunken ECC803S . The ECC803S is a super-long plate (17mm- it's almost the entire length of the envelope) 12AX7, which is a bit brighter and and about 90% of . I know the Sovtek 12ax7lps is a different construction than the standard 12ax7 from them but not sure how they compare to . JJ ECC803 vs new production Mullard 12AX7 . High Gain Valves Electro Harmonix and Tung Sol (both 12AX7) - They both provide enough gain for metal with the gain cranked. 10. JJ's rugged construction of this tube offers high reliability without any compromise to the sound. Sovtek 12AX7WA/WB: Boring, dull, indestructible. Originally, the 12AX7 / ECC83 vacuum tube was introduced to be a superior option for lower noise and microphonics over the 6SL7 tube that was commonly used in the 1940s. oneblackened Also known as the ECC83 or the 7025, it is a dual triode tube that has the highest voltage gain of all preamp tubes, with a mu of 100. The 12AT7 also has a gain factor of 70, but since Similarly, the Sovtek 5751 vacuum tube serves as an impeccable replacement for the 12AT7 reverb driver tube. kcoc321 Posts: 1,781. The same audio equipment was used A bit more . TAD RT003 Tube ECC83 CZ. Widely used across guitar amplifiers and hi-fi applications. They are very close but the gold pin will have slightly less gain in the mids. Hello all, I was wondering about your opinions on the 12AX7-type preamp tubes. 12AX7 / ECC83 / 7025. The Sovtek 12ax7lps is really nice for the PI and is not fizzy. €2.60 *. Today this tube is mostly known as Sovtek / Russia brand EL84 / 6BQ5 which is the current production version of the identical tube. It offers an ultra-low noise and an articulated tonality to give your guitar or bass amp a refreshing new sound. Sovtek 12AX7LPS Vacuum Tube (Original Version) $19.78. The tube I have chosen more than any 12AX7 type is the JJ ECC803S. More highs than the other JJ however. Fizzy. So if you turn your amp on for 8 hours a day they'll last about 3.5 years before failing. interesting zim,you found the gold pin in V1 to have a significant effect. The 12AX7 is by far the most common out of all preamp tubes. The ECC83 does have a bouncy quality (mids perhaps) and a little less bass, this plus the compressed nature really seem to kick for gainer amps. LPS is very warm/dark and grainy. com 电话:027-85420526. £22 188. €1.95 *. Sold by Front Row Electronics and ships from Amazon Fulfillment. The Sovtek LPS misses the mark somewhat though, especially in the all-important qualities of balanced harmonics, lifelike sonics and sheer organic, natural musicality. Neutral high-end with slightly scooped upper mids ala JJ. The lows seems a lean but tight. I haven't tried the new Sovtek made long plate Mullard yet either. Better in V1 of a vintage type amp or the phase inverter. It's a little smoother than the JJ ECC803S, but otherwise sounds pretty similar. However, in reality there are comparative gain differences among 12AX7s. We carry a large selection of 12AX7 tubes to help you get the right sonic from your gear. Sovtek 12AX7LPS / ECC83 / Russia. . As input tube i suggest to use the old 12ax7 jan philips or the sovtek 12ax7lps the to get the best sonic result. About 12ax7 Vs 7025 . I prefer the sound of the Sovtek 12AX7s to the JJs. . Marshall Style Knob with screw, 6,3 mm Axis, Black with Gold cap. Sovtek 12AX7LPS and JJ ECC803S - besides slightly higher gain, nothing to write home about. Tung-Sol Gold 12AX7/ECC803S. I often pair a Mullard ECC83 in V1 with a JJ ECC803S. The EH that I have, that MB uses, is made in the Sovtek (Reflektor) factory, not in China. JJ ECC83-MG / 12AX7 - The ECC83 MG is a fine sounding tube. The tonal characteristics were easier to hear. The power section is a Sovtek 12AX7LPS into 4 JJ 6L6GCs. A customer reported that the JJ ECC803-S tube is very warm and rich with a golden glow in voices. Sovtek 12AX7LPS: An improvement over the WA/WB series sovteks. Tesla N.O.S E83CC/ECC803S Telefunken replica new old stock valves. The JJ EL84s are probably your best choice among output tubes. Sovtek 12ax7 LPS Grove tubes 12ax7 M I'm now using the JJ el84 with JJ ECC803S most of the time, because is the best balanced, dynamic, punchy sound. Today this tube is mostly known as Sovtek / Russia brand 5881 / 6L6WGC which is the current . With a tube phono I really like the Sovtek 12AX7LPS tubes and the newer Mullard CV4004/12AX7 tubes. Another long plate 12AX7 is the JJ-ECC803S which has the same charateristics as the GT mullard, but without the guarantee. You are reading the older HTML site. They also have a nasal like sound. £16.70 Compare 93 . The ECC803S is a long plate tube, so it might produce a bit of mechanical noise if you put it in V1. I'll be ordering more tubes very soon. If given the choice of using any octal NOS tube, I would pick 6SN7 over 6SL7. Conclusion JJ ECC83S / 12AX7 Gold JJ Electronic. 11. Re: Sovtek 12AX7LPS versus JJ ECC803S Post by talbany » Sat Mar 19, 2011 2:50 am Sovtek WA, WB, WC have very low transconductance, around 1250 instead of 1600. Sovtek 12AX7WA The same overall tone as the WC, but slightly more gain, closer to breakup on full barre chords. Best new production tubes for this socket are Electro Harmonix, JJ ECC803S, Sovtek 12AX7LPS. FREE Shipping on orders over $25.00. Bottom Line: The Electro-Harmonix 12AX7 Gold Pin vacuum tube is a reliable choice for electric guitar amplifiers. About 12ax7 Pinout . As with the OR15, if you put the gain above the first notch, the sound will not be clean anymore. I like them but prefer the Sovtek. TAD ECC803 S TAD Premium Selected. I understand that the 12AX7WB is substituted for the 12AX7WA when wanting to provide more gain. JJ ECC83S / 12AX7 Gold JJ Electronic. Tesla N.O.S E83CC/ECC803S Telefunken replica new old stock valves. Reliable, long-lasting, "standard" tone. Speakers (oz) Power Rating. and a beautiful TRF Receiver. Sovtek 12AX7LPS: An improvement over the WA/WB series sovteks. However, the JJ ECC803S filled in nicely there. Dec 6, 2010 #3. For a warmer tone cleaner tone without sacrificing to much gain the GE, Philips, or Sylvania 5751s are very good phase inverters. Update The test reports have been updated to include the new current production valves that have come to the market place since our last tests which was concluded in September 2000. Tung-Sol NN099-G Tube 12AX7/ECC803S. Probé también el Sovtek 12AX7LPS que siempre recomiendan para el phase inverter y sonaba un poco más cálido que el JJ ECC803S que tengo en esa posición ahorita, pero después de un rato empezó a hacer mucho feedback. Best new production tubes for this socket are Electro Harmonix, JJ ECC803S, Sovtek 12AX7LPS. Also known as the ECC83 or the 7025, it is a dual triode tube that has the highest voltage gain of all preamp tubes, with a mu of 100. 12AX7 / ECC83 / 7025. I find they work best as a PI, but they can really darken up your amp. For less gain, you can replace a 12AX7 with 5751, 12AT7, or a 12AY7. This valve has low microphonics and is useful for lowering the gain of an amplifier to provide a clean tone. It has better definition and is more linear than the others when played clean. Great for touring bands . I've always heard this one is good in the PI, but it works well in the first stage, too. I think the ECC803S is fairly neutral but it seems to have a bit of what I call a harmonic shimmer in the high mids. I like both the JJ ECC83S And the Sovtek 12AX7LPS. The same audio equipment was used This is the industrial version of the 12AX7. The new Russian made Tung-Sol 12AX7 reissue bests both of these JJ tubes to my ears and so far appears the be quite reliable. I've always heard this one is good in the PI, but it works well in the first stage, too. In Stock. Military -EV version, long life > 5000 hrs. Sovtek 12ax7wc and JJ ECC83S certainly have similarities in . Product information "5881 / 6L6WGC / 6P3S-E - Russia / Sov." The russian 5881 was born as 6P3S-E in the Saratov plant and was designed for the use in military vehicles and aircrafts. To what extent do you consider the difference to be audible. JJ has the same amount of Treble but more low Mids that give the impression of darker sound. Just shut off the power and pull out the tube. New Gain Matched Pair (2) JJ Electronics Tesla 12AX7 / ECC83-S Vacuum Tubes. Doenside of large plate valves is that they are much more prone to microphonics The 5751 is a special version with 70% of the gain of a normal 12AX7. 12AX7 vs 12AT7 vs 12AU7: Differences Explained. 5751 vs 12AX7. This tube sounds drastically different than the JJ ECC83S. Long plates are really good, except when used in the V1 of a high-gain amp. JJ ECC803S: Update on this tube: Absolutely flipping amazing as a phase inverter. What's new. I would say the Sovtek 12AX7LPS has the same about the same mids and highs, but the lows have been . €2.60 *. The Sovtek 12AX7WXT is the best of the Sovtek 12AX7 group. . . Sovtek 12AX7LPS / ECC83 / Russia. The European type is the ECC83. Overall, it's probably personal preference, but for now, the ECC803s are staying in this amp! High Gain Valves Electro Harmonix and Tung Sol (both 12AX7) - They both provide enough gain for metal with the gain cranked. 12AY7/6072s (as used in the front end of many Fender tweed amps) or 5751s (a lower gain 12AX7 great for smoothing out any harshness sometimes caused by humbucker pickups in Fender amps) are often substituted in the V1 and V2 sockets. Tung sol ecc803s gold pin, genalex cv4004, or tad ecc803s are also an all around good option. 12AX7 Comparison of Current Made Tubes. *Sovtek 12AX7LPS tubes, very low noise spiral filaments, checked for good section-to-section match, $14.75 ea., or $29.75 per matched pair; quads (if available - these are VERY rarely needed) are $61.50. the 5751 has more gain than the 12at7 but less than a typical 12ax7. the only sovtek i have found to be reliable is the 12ax7LPS for PI slots. The original military 6P14P tube was made to the highest standards with tights limits in . The Bass is also looser with JJ but Tung Sol thickens it nicely. Sovtek 12AX7LPS. Another great tube to try is the Sovtek 12AX7LPS. I digress, thanks again for your help. Beside this battle, we have also compared the Proceed CDD transport vs. ECC83 12AX7 E83CC ECC803S 7025; ECC85 6AQ8; ECC88 6DJ8 E88CC 6922 E188CC; Preamplifier Pentodes. Super reliable, sound is somewhat rolled off and dull on the top compared to other 6L6 style tubes. I'm currently playing around with a NOS Mullard from the . The Sovtek 12AX7LPS is a nice sounding tube. Update The test reports have been updated to include the new current production valves that have come to the market place since our last tests which was concluded in September 2000. I was unable to notice a loudness reduction compared to the standard JJ ECC83S tube. Its trademark tone is that crisp and bright top end. Marshall Style Knob with screw, 6,3 mm Axis, Black with Gold cap. It is also used in Preamp Circuitry of Guitar Amplifiers. Shuguang 9th Gen 12AX7A: Mesa SPAX7 branded. JJ803S is one of my CP production faves for V1 and PI. Sovtek 12AX7WXT+: A little better than the WA's and WB's. Rounder and more linear when clean but brittle. A brief history of 12ax7 tubes. I personally don't like the way they sound in a Marshall, real bland. 10. 7189 has a higher plate voltage spec than an EL84, something like 400v. Dethroned the 12AX7LPS for me. The ECC83 is a mid gain tube and will have less gain than a 12AX7 (ECC803S). A brief history of 12ax7 tubes. I consider this a worse version of the JJ ECC83S. It's popularity is driven by use in many Hi-Fi tube amplifiers and especially guitar amplifiers, where it's pushed really hard and burns out fairly quickly. For specially selected tubes (for Aesthetix and other hi gain/noise sensitive gear) selected pairs (when available) are $37.50. Location: New Jersey. Ideally, every 12AX7 should yield the same gain when placed in the same circuit. Introduced in May of 1947, the tube gained almost immediate . i can honestly say that a JJ gold and even the tung-sol gold made no difference at all in my mesas or 5150. For low noise you cannot beat the JJ-ECC83S, although Groove Tubes sells the exact same tube (GT-ECC83) again with the 6 month guarantee. JJs seem a bit darker. 6N4 = ECC83 / 12AX7A NOS (square type getter) the 6N4 was made in Peking till 1996 and has been used as stock tube from most guitar amp manufacturers including Fender, Marshall, Mesa Boogie, VOX, Diezel, Engl, Hughes&Kettner and so many more. Is the Sovtek 12AX7LPS very different from the JJ ECC803S? This item: JJ ECC803 / 12AX7 Long Plate Gold Pin Vacuum Tube $28.85. Rectifier: JJ GZ34S, TAD 5AR4CZ I would like to get some more overall clarity and sweetness without getting more icepick. Compared to the JJ ECC83-S this tube sounds a little more eager to hit the midrange. The only new current production item being the Sovtek 12AX7LPS. In Stock. The Princeton was discontinued in 1979. The JJ ECC803S is a large plate version and has a richer mid and bass tone. As input tube i suggest to use the old 12ax7 jan philips or the sovtek 12ax7lps the to get the best sonic result. 3V heater voltage and would need a different wiring than stock 12AX7's. With the 12AX7 being such a popular tube in vintage as well as current preamplifiers, a great 12AX7 is always in demand. The Sovtek also has big lows, but they are much loosier and woollier to my ears. From €19.40 *. Get it as soon as Mon, Nov 8. I use the Electro Harmonix 12ax7(amazing) or Sylvania 5751 for a "groover" sound, much thick low end (sometimes too much) than the JJ I also found that both the Tung-Sol 12AX7 and JJ ECC803S tubes in V1-V3 sounded better when using the Mullard reissue 12AX7 in the PI slot! £24.30 46. Today, 12AX7 is the most common preamp tube used in guitar and audio amp due to its high amplification factor (mu). Ships from and sold by AmplifiedParts. The Sovtek 12AX7WXT vacuum tube is a miniature type used as phase inverter or amplifier in ac/dc radio equipment and in many diversified applications such a multivibrators or oscillators in industrial control devices. Sovtek 12AX7LPS - This is a tube that can really deliver extended treble and gives a crisper sound to things like cymbals. 12AX7/ECC83GEN. FREE Shipping. . Another good choice is the Sovtek 12AX7LPS, which is a long plate tube. Link & Share. It's popularity is driven by use in many Hi-Fi tube amplifiers and especially guitar amplifiers, where it's pushed really hard and burns out fairly quickly. When over driven this tube gets piercing and compresses hard. Sovtek 12AX7LPS. It has better definition and is more linear than the others when played clean. 9. SINGLE TUBES ARE $195. There's a reason why Fender stuffs these into just about everything, but the tone is very straightforward, little harmonic complexity. This is pretty much my ideal voicing. Replacing the stock preamp tube with an amp tube having a somewhat different mu or amplification factor usually alters the sound quality. Like they build something like an ECC803S, but add a short from of the ECC83 data sheet with it. Product information "Tung-Sol 12AX7 / ECC803S Gold-Pin / Russia" Russian remake of the amerikan TungSol 12AX7. $43.89. . However, what you lose in gain you get back with more. €1.95 *. KVB knee voltage is 4. Sovtek 12AX7LPS - Another long plate that really surprised me. ECC83/ 5751-JJ TESLA GOLD PIN JJ Tesla The JJ TESLA 5751 Gold pin is a factory selected version with . If you want gain, go for a Sovtek 12AX7LPS or a Mullard 12AX7; For lowest microphonics, Tung Sol 12AX7; If low IMD is your thing, buy a JJ ECC803S, just make sure the microphonics aren't going to be a problem. V1: JJ ECC83, V2: Tung Sol 12AX7, V3/4: JJ EL84 (matched pair), V5: 5Y3. Sovtek 5881WXT ($17.50 each): A relabeled 6P3S-E Soviet military tube. 89. 12AX7 / ECC83 / 7025. Power . Diy tube preamp schematic. Also mullard i63 ecc83 or a nos mullard 12at7, sovtek 12ax7lps if you lack high end bite the nos are much better. I feel these tubes have a very even EQ response with some emphasis on brigt, sparkling, open highs, which contrasts greatly with the more popular ECC83's. . 9. Tung Sol 12AX7/ECC803S Gold Pin - As with some others, this seems to be the same tube as the standard pin . For a comparison of all the 12AX7's we carry, click on the tech corner link at the top of this page. Super quiet, tons of gain, hate how it sounds. No one has mentioned that the JJ ECC83S is a short plate tube, the EH LPS is a long plate. The 12ax7 tube is arguably the most popular audio vacuum tube that has ever been created. 16uF @ 475V 12x30mm electrolytic capacitor, axial, 105°C. However, it has been out shinned by both the Ei Yugo ECC83s and the Tung Sol RIs that I already had in there IMO. With the treble up, I think the amp tends toward a bit of icepick now. Pre-amp tubes have a typical minimum life of about 10,000 hours of usage. Overdrives in a very unpleasant way. Add to cart More. Sovtek 12AX7LPS and long plate JJ ECC803S often do a good job here. Details. Sovtek 12AX7LPS - Another long plate that really surprised me. Tung Sol 12AX7/ECC803S Gold Pin - As with some others, this seems to be the same tube as the standard pin . The Sovtek 12AX7WB has more gain and saturation than the WA. Each of the components used to construct the tube has been carefully chosen to limit microphonic noise, and promote tonal clarity. 803S from JJ has more highs/clarity and less gain than either the JJECC83S or the Sovtek LPS. I put the Gold Lion 12AX7 in the all important V-1 slot, replacing the factory unbranded tube. Unlike power tubes which live a much short 1,000 to 3,000 hour life span, except for some mil spec tubes designed . Outstanding mechanical sturdyness and reliability is its key feature. Sovtek 12AX7WC The workingman's tube. . In Reply to: 7058 vs 12AX7 vs 5751 posted by Mark on November 1, 1999 at 07:04:38: The 7058 is a 12AX7 variant that was intended for automotive use. ECC803 - long plate tube seems like less output than the ECC83 (short plate). $43. When over driven this tube gets piercing and compresses hard. So by their own data sheet, their ECC803S is only an ECC83. The 12AX7 is by far the most common out of all preamp tubes. On my list to try are Tung Sol reissue and JJ ECC803S. As input tube i suggest to use the old 12ax7 jan philips or the sovtek 12ax7lps the to get the best sonic result. I think the JJ long plate tube is the ECC803S as I recall. Is the Sovtek 12AX7LPS very different from the JJ ECC803S? It's a little smoother than the JJ ECC803S, but otherwise sounds pretty similar. New Tube Day: JJ ECC803S and ECC83MG. Introduced in May of 1947, the tube gained almost immediate . Call: 04 210 477 48 / 03 983 08 220. The purpose of this comparison is simply to provide guitar players with a frame of . Overall the sound is open and balanced from top to bottom, with a good deep bass. RCA developed the 12AX7 tube in the 1940s for general purpose amplification. It is a short plate tube. Fizzy. The JJ ECC803S tube has wide and deep soundstage. Site news 29 Jul 2021-. 10. See our Best 12AX7 Review for top choices .
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Projekt i realizacja: program theory in monitoring and evaluation
