EL34 vs 6CA7: two power tubes that can cause a lot of confusion when purchasing replacements, because they're very similar and are, in fact, replacements for one another. Perfect for your Marshall, Orange, Blackstar, Bogner, Dr Z KT45, Hiwatt, Laney, Mesa Boogie, Rivera, Voodoo, Vox Ac100 and many others. I started with 6550's, then KT77's, then finally EL34's (did try 6ca7's but lacked crunch). 6CA7 CV1741 EL34 KT77 Extras Shuguang Photographic Donations. The JJ ECC82 drivers are staying put as the reviews I have seen indicate that they are about as good as it gets short of going nut$. It may be a little more 35 ma or a little less 25 ma. Remember too that I’m comparing different types of tubes (6CA7 versus EL34), one set of which is approaching superannuation and the other brand new. The sound however is not typical of an EL34 or 6CA7. Telefunken EL34 6CA7 winged heatsink tubes valves. For the same idle plate current value, the E34L is typically biased with a more negative grid voltage than the EL34. Supplier: Grant Fidelity Price: 6CA7-Z $230, per grade A pair; KT66-Z $280 per grade A pair, YMMV due to currency volatility. com over the years. Doug's Tubes Gift Card 2020. Just the right amount of compression for great thick rock tone. I like both EL84 and EL34 amps. page 12 Same as 11, but @ 2k load impedence. If I had a JTM personally I would put KT66's in it. Much clearer and fuller sound than the EL84's clean and dirty. Hand selected and matched using precise equipment, they are ready to ship!. They aren't night and day but the e34l is definitely more agressive and has more low end chunk than the regular el34. We carry a huge selection of EL34 / 6CA7 / KT77 tubes for your amps. Loading Unsubscribe from seas- lyd? EL34 vs 6L6 - Victory V40 The Duchess - Duration: 4:18. The Power Pentodes can sound quite nasty (relatively speaking) due to how they produce third-order harmonics. Then came the 6CA7, which was created in America. The valve offers the EL34 user In stock £19. They aren't exactly just different sized versions of each other, one simply having out double the power output, but they are like fairly close family. The Svetlana EL34 has an , Svetlana EL34 plate is made from a laminated material that improves heat transfer and has superior. 0% EL34 7 vote(s) 70. Here are some notes and photographs of a single-ended (SE) KT88 tube amplifier which I recently built. Be sure to check out our EL34 / 6CA7 / KT77 tube reviews page for more information regarding the sound qualities of these tubes. That list is in ascending order with the best last. Conversely, the Jolida 502 cannot run the EL34/6CA7 as things are. You may use a varible resistor the tilt down from high value. page 14 Similar to 13, but 11k load impedence. It has a fat, round low-end to it - the KT77 also has it, but has a different harmonic sound - and has a sizzly high end. Re: KT77 vs. The only thing I don't like about the SED Winged =C= EL34 power tube is the price (yes, I know what's become of the company, etc. Made in Czechoslovakia. There is a JJ large bottle 6CA7 that supposedly sounds incredible but in most amps may fail, but in our low-stress design should be fine. Sylvania "Fat Boy" USA These are known as "Fat Boy" tubes because 6CA7/EL34 tubes made in the USA have much fatter glass bulbs than their European EL34 equivalent. Reports in the field say this is one of the most durable EL34 types currently available, and so far our tests agree with that. Try a 6CA7 in place of an EL34 for more pronounced low-end frequency response with a little more headroom. thetubestore. The 6CA7 is the US designation for the EL34 and is complete interchangeable. 6CA7 / EL34 Tube Data Key: B&W, 600x789 resolution (or slightly less), 8k-22k file size These are a little rough, but often good enough. The 5881 SHOULD be ok with the plate voltages found in most guitar amplifiers designed for the 6L6GC. For tone, KT66's in a JTM45 is going to be early AC/DC, Bon Scott era. Can come off as a bit tinny or hard if biased cold. plate watts: 25). The E34L is a special low grid voltage version and is not always interchangeable. Tung-sol EL34B which we can't state an opinion on. Re: EL34 vs. Now I can compare not only the EL34s and KT150s using the PrimaLuna amp itself, but can also conduct a KT150 vs KT150 comparison using two different amps: a PrimaLuna DiaLogue Premium and an Audio Research Ref75SE. This is a suitable replacement for any EL34 = 6CA7 POWER PENTODE tube type. Coming from the first Tetrodes Valvo got the patents for the pentode in 1927. Although this is a replacement for the EL34 tube, the 6CA7 tube looks nothing like a pentode. And Rodabod, the 6CA7 is roughly equivalent in specs to the EL34, the exception being that the EL34 has a suppressor grid (a true pentode) and the 6CA7 is a beam forming pentode/tetrode (depending on who you're asking, it's considered a pentode or a tetrode). I currently running Winged "C" EL34s and like the sound overall. Bakis Productions 47,200 views. These tubes are built with various components that manage electric currents as they travel around electrodes within an evacuated housing. You may use a varible resistor the tilt down from high value. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. These tubes can take the heat! Price includes extended burn-in and precision matching. The power tubes behind Marshall's classic amps, these Svetlana Russian EL34 tubes give you the rich and creamy breakup that helped define the "British Tone. EL34/6CA7 Matched Pair Amperex Holland made, Bugle Boy type, brownbase, XF3,XF5, or XF4, dual "D" getter. The Gold Lion KT77 is a drop in replacement for an EL34 or 6CA7. thetubestore. The plain strings are made from the same high carbon steel as the hex cores. An extremely faithful reissue of the XF2 Mullard EL34 from the 1960s. Power tubes are responsible for powering the output stage in your amplifier. Peavey uses a 100 ohm resistor. Amp Tubes: 6L6 Vs. page 13 Same as 11, but class B @ 4k load. One big advantage of buying sets from me is that I have the ability to really help you out in a jam down the road. The tubes haven't opened up all the way yet but it sounds close to my Yaqin Tube that cost about 800$. I like the 6CA7's better but I am an EL34 type of guy. It actually sounds like an EL34 with very good reliability. The clear and harmonic open top end allows for great clean tone and at the same time the TAD EL34B-STR offers incredibly powerful mids and equally powerful bass. Most 6L6 amps use a 470 ohm resistor. Gold Lion KT77 vs EL34 (Svetlana or JJs) - petercapo 07:19:04 12/16/17 (3). Shop with confidence. by email: “Greetings, I bought a quad of the Shuguang Black Treasure 6CA7’s from you recently and love them. The 6CA7-EH is built to withstand today's high-gain amps while still retaining the detailed tone and component integrity of the original. The best EL34 variant I have used. Octal power tube (max. I have used Shuguang EL34, GrooveTube EL34, Russian NOS 6P3S-E, ElectroHarmonix EL34 and the ElectroHarmonix 6CA7. The tube delivers all the mid punch you would expect in an EL34 but also has a top end that is more open and bright. plate watts: 25). Would much prefer to use the 6CA7 as these were used in most amps of the day. An authentic remake of the British Mullard EL34. The first working popular pentodes were the AL5 and EL5 in 1937. Sonically the T-series is considered modern refined with more top end extension, while the Treasure Z-series were. The EL34 is a thermionic valve or vacuum tube of the power pentode type. DC voltage measurements taken with vacuum tube voltmeter, AC voltages measured at 1000 ohms per voll. Can come off as a bit tinny or hard if biased cold. The Mullard re-issue which wears like iron but maybe not as warm. el34 Disclaimer Submit a tube. 6L6 1 vote(s) 10. 6CA7 - American version of EL34 built as beam tetrode to avoid patents. kt88 vs 6l6 vs el34 Stick for me. They are exceptional tubes, absolutely killing the EH 6CA7 and Tung Sol reissue EL34's I've tried. The E34L has a slightly higher grid voltage rating (-13. sharethemusic Post subject: Re: 6CA7 vs EL34 Sonics. The 6CA7 is the US designation for the EL34 and is complete interchangeable. Some, but not all, were versions of existing American beam tetrode tubes or European power pentodes, such as the KT66 (6L6), KT77 (EL34 and 6CA7), KT88 (6550), and KT63 (6V6). right - what do people think of the various suitible replacements for 6CA7/EL34 tubes? I like my vanilla JJ EL34's - but whats the point in a valve amp if you don't start a small. Would much prefer to use the 6CA7 as these were used in most amps of the day. I'm refurbishing a pair of Altec 1569A power amplifiers, these use a quad of 6CA7/EL34 power tubes each, making 80W of output. i do wonder however, why you need 200 watts for 99 db/w/m horn speakers. The 6CA7 is often considered the American cousin to the British EL34. EL34/6CA7 Matched Pair Amperex Holland made, Bugle Boy type, brownbase, XF3,XF5, or XF4, dual "D" getter. It has a fat, round low-end to it - the KT77 also has it, but has a different harmonic sound - and has a sizzly high end. It's definitely got a bit of a 6L6 designed into it. Maximum anode dissipation is 25W and output power of single tube is over 10W in A1 amplification mode. EL34 / KT77 / 6CA7; EL34 / KT77 / 6CA7. My 2008 410H came with relabeled SED Winged =C= EL34 power tubes, which served me very well. The 6L6GC tube is a 30W valve. 90 shipping. The 6CA7 is the US designation for the EL34 and is complete interchangeable. It may be a little more 35 ma or a little less 25 ma. EL34's and 6CA7's may work the same,but usually the sonic differences are large. You may use a varible resistor the tilt down from high value. NOS Siemens Telefunken RFT EL34- Regardless of the branding (Siemens. Self biasing is common for lower wattage < 30 watt amps, not common for higher wattage. Vacuum Tube - EL34B, Valve Art - Octal power tube (Max Plate Watts = 25W) EL34B(with shadow grid) is a high performance improved version of pentode EL34A to solve the problem of overheated No. lower output. The EL37 was of pinch construction whereas for the EL34 Mullard used the pressed glass foot construction employed on the B9A and B7G miniature valves for this IO based device. Special grid windings give a unique sound for both guitar and hifi; Perfect power tube for Dynaco ST-70 or vintage Marshalls, Hiwatt or other British Amps; 6CA7 equivalent. which is also of the EL34/6L6GC/KT77/6CA7 family of tubes. When I still had EL34 hifi amps (Unison Research S6 and Primaluna Prologue 4), I liked EH 6CA7's best; better defined bass, bigger stage. It is divided into two classic grade and premium grade same as treasure series tubes. Perfect for your Marshall, Orange, Blackstar, Bogner, Dr Z KT45, Hiwatt, Laney, Mesa Boogie, Rivera, Voodoo, Vox Ac100 and many others. Psvane black glass treasure series. When Jon Esau of www. Recommended for demanding, higher voltage amps. Many of the EL34, 6CA7 and KT77 tubes listed here also have customer tube reviews. Title: EL34 Author: Mullard Subject: FP-2002-02-16 Created Date: 2/17/2002 1:14:47 AM. com over the years. com: 12/6/99 12:00 AM > > How do you set bias on 6GB8? > That's simple. They are often found branded RCA as RCA NEVER made any kind of 6CA7/EL34 in their own plant. EL34(6CA7)のパラ・シングル・モノラルです。初段は6SL7のSRPPです。 各部電圧は、バイアスを-27Vに調整したときの、実測値(一時間通電の後)を入れてあります。 水魚堂さんのBSchを使って入力しています。. It has a fat, round low-end to it - the KT77 also has it, but has a different harmonic sound - and has a sizzly high end. New Sensor Mullard reissue EL34: pricey, tight bottom end, rich midrange, very nice SED Winged C EL34: great midrange and shimmering high end, solid bottom end, best price-performance ratio Electro-Harmonix 6CA7: bigger and deeper bass than true EL34's, slightly scooped sounding, still nice, but lacked a little depth like Svetlanas. Premium high-voltage power pentode. About a year ago I swapped the EL34 tubes out for 6CA7 valves and liked what I heard, over the past few months I have been contemplating changing the amplifier but. EL34 - 6CA7 PSVANE MARK II - Matched Pair By virtue of its smart design. It became popular pretty quickly. The only tube that is a 99% drop in replacement for the EL34 are the 6CA7's and in some circuits if granted by the designer, the KT77's. We also indicate top sellers for the EL34 tube type. 6L6 1 vote(s) 10. Gold Lion KT77 - A modern re-creation of the legendary Genalex KT77. 6CA7 is high property audio output pentode, its anode limited dissipation power is 25W, the output power is over 10W when it is used as class A1 in amplifier single tube, and it is over 35W when it is used as class AB1 double tubes. EL34 Since a relatively high gain amp like a DSL relies on overdrive and distortion created mainly in the pre-amp and by the pre-amp tubes, it doesn't hurt to use a cleaner set of power tubes. pentode EL34, yes @Henry Mars. ecc83 (12ax7) ecc82 (12au7) ecc81 (12at7) 12ay7, 5751, ef86 el34, e34l, kt77, 6ca7 6v6 el84 6l6, 5881 misc types Valve Amp Sets JJ EL34 Amp Sets JJ 6L6 Amp Sets JJ EL84 Amp Sets. 0% 6CA7 1 vote(s) 10. Vacuum Tube - EL34B, Valve Art - Octal power tube (Max Plate Watts = 25W) EL34B(with shadow grid) is a high performance improved version of pentode EL34A to solve the problem of overheated No. This is a suitable replacement for any EL34 = 6CA7 POWER PENTODE tube type. I am just not a big fan of EL34s. EL34 vs 6CA7 vs KT77. Produced in Russia by New Sensor. EL34/6CA7 Mullard made XF1 date code, hole in centering pin, large dark brown Micanol base, RARE. Getting harder to find - Stock up now before they are HISTORY. The Svetlana SV6550C can be substituted for 6CA7 by modifying the amp's bias circuitry. Re: EL34 vs. When Jon Esau of www. JJ ELECTRONIC 6CA7: Really nice to have this tube available, it's not as bright in the top end as the EL34 or E34L or the KT77 but it really warm sounding and tames an overly bright amp giving a thick and woolly tone. Details Add to cart. Preface to the sixth edition. These are the famous Winged C EL34. 2020 popular El34 Amplifier trends in Consumer Electronics, Home Improvement, Lights & Lighting, Home Appliances with El34 Amplifier and El34 Amplifier. Perfect for your Marshall, Orange, Blackstar, Bogner, Dr Z KT45, Hiwatt, Laney, Mesa Boogie, Rivera, Voodoo, Vox Ac100 and many others. Far more reliable than the JJ KT77, and even more beautiful sonically. JJ ELECTRONIC KT77: We had to include this tube in along with the EL34 family. Reports in the field say this is one of the most durable EL34 types currently available, and so far our tests agree with that. The EL34 is a thermionic valve or vacuum tube of the power pentode type. I still love my 6L6's but this gives me more tonal options. EL34 vs 6CA7 vs KT77. EL34(6CA7)のパラ・シングル・モノラルです。初段は6SL7のSRPPです。 各部電圧は、バイアスを-27Vに調整したときの、実測値(一時間通電の後)を入れてあります。 水魚堂さんのBSchを使って入力しています。. JJ ELECTRONICS EL34 POWER VACUUM TUBE MATCHED PAIR Single. - higher input signal required for 6L6. el34 Disclaimer Submit a tube. The Svetlana EL34 has an , Svetlana EL34 plate is made from a laminated material that improves heat transfer and has superior. EL34 is one of the most popular power output tubes today, and there is a large number of current production EL34 and variants. It has an international octal base (indicated by the '3' in the part number) and is found mainly in the final output stages of audio amplification circuits and was designed to be suitable as a series regulator by virtue of its high permissible voltage between heater and cathode and other parameters. You may use a varible resistor the tilt down from high value. however if you have a great amp with lots of low end and can use either el34 or 6l6s, the 6l6s would be the best choice. Grab yourself a cup of your favourite hot brew and let Johan A/B you some nice vacuum tube tones. Very surprised how they sound (Rivera Chubster 45 watt amp). EL34/6CA7 vs. The 6CA7 is technically a different tube and has a bit more of an American tone as well as being much fatter. You can get much darker and with more drive, more high end harmonics. DC voltage measurements taken with vacuum tube voltmeter, AC voltages measured at 1000 ohms per voll. His punches out his bluesy rock riffs on a Gibson SG from the Custom Shop, so quality gear used all round. We carry a huge selection of EL34 / 6CA7 / KT77 tubes for your amps. It became popular pretty quickly. An authentic remake of the British Mullard EL34. The 6CA7 are more balanced but hard to describe, more lows and lower mids, uninteresting high/top end, little less midrange overall, when compared to the el34. Can come off as a bit tinny or hard if biased cold. They do, however have different internal designs, and they’ve changed slightly over the years. Produced in Russia by New Sensor. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. When I received the amp, it was biased to take 6L6 tubes in the power section. 50+ videos Play all Mix - EL34 vs EL34L vs KT77 Marshall jmp YouTube JJ Power Tube Comparison (EL34, E34L, 6CA7, 6L6)(HQ Audio) - Duration: 6:44. TrAnsfer ChArACTerisTiCs pLATe ChArACTerisTiCs a. Reports in the field say this is one of the most durable EL34 types currently available, and so far our tests agree with that. The first section of the table lists 4 digit and European types sorted in numerical and alphabetical order with USA type designations in the second column. Gift Card 2020. JJ ELECTRONICS EL34 POWER VACUUM TUBE MATCHED PAIR Single. by email: "Greetings, I bought a quad of the Shuguang Black Treasure 6CA7's from you recently and love them. Tube EL 34 or Röhre EL34 ID1900, Vacuum Pentode, Octal (Int. 74 out of 5) "Mullard EL34 reissue is a surprisingly good sounding vacuum tube. They are fully computer tested using the Roetest professional system and the famous TV-7D/U. however if you have a great amp with lots of low end and can use either el34 or 6l6s, the 6l6s would be the best choice. Socket connections are shown as bottom views. I like them better but I like the kt77's way better than those even. Many of the EL34, 6CA7 and KT77 tubes listed here also have customer tube reviews. All prices are per tube. Reports in the field say this is one of the most durable EL34 types currently available, and so far our tests agree with that. An authentic remake of the British Mullard EL34. I remember reading somewhere that the ones with a "B" designation have some differences and are more like a 6CA7. The EL34 is a thermionic valve or vacuum tube of the power pentode type. However, this is not. By Matsushita. Contact Us. An authentic remake of the British Mullard EL34. Bass goes deep and is tight, mids are sweet and well defined, and highs are detailed and extended. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. Other EL34's to consider are the rare and expensive SED Winged C which is very good sounding. Telefunken EL34 6CA7 winged heatsink tubes valves. It has a fat, round low-end to it - the KT77 also has it, but has a different harmonic sound - and has a sizzly high end. The EL34-B from Chinese manufacturer Shuguang is a modern interpretation of the original 1954 design. I really like these Siemens EL34s in my Germino Lead 55 compared to the Russian 'Mullards' that. Almost all of mine are one or the other. Use of these parameters shall be entirely at the user's own risk. Perfect for your Marshall, Orange, Blackstar, Bogner, Dr Z KT45, Hiwatt, Laney, Mesa Boogie, Rivera, Voodoo, Vox Ac100 and many others. The KT66 and the KT77 are in a class of there own and totally different. Add to Cart Add to Cart. The 6CA7 is the US designation for the EL34 and is complete interchangeable. 6CA7 is the US equivilent of the EL34. Early XF1 date code (1957) "fat base" type, dual ring getters, good getter flash. 6L6GC's are 30W, and EL34's are 25W. Sylvania "Fat Boy" USA These are known as "Fat Boy" tubes because 6CA7/EL34 tubes made in the USA have much fatter glass bulbs than their European EL34 equivalent. Holland made, excellent sonics, some are CBS "Germany" labeled, some Amperex Bugleboy, and some Philips Miniwatt. I found that I preferred the Treasure Series 6CA7 to the regular grade Shuguang KT-88 in my system for their extended highs and midrange beauty. A Major improvement over other 6CA7's. NessTone Premium Grade EL34 / 6CA7. 0mA & 11,700 (103%) code delta 2C3. Similar problems are reported by Mark Wheeler in his. Some, but not all, were versions of existing American beam tetrode tubes or European power pentodes, such as the KT66 (6L6), KT77 (EL34 and 6CA7), KT88 (6550), and KT63 (6V6). This amplifier was featured on the January 2003 Issue of the "High-Fidelity Audio: Radio Technology" by Mr. thetubestore. Self biasing is common for lower wattage < 30 watt amps, not common for higher wattage. ) A version is made at the Reflector plant in Russia. So that's quite a big difference. Posted: Sun Sep 30, 2012 4:37 am. Similar tubes from RCA or Sylvania Sylvania. organ Posts: 5,022. I currently run Antique Sound Lab EL34s ( ac. EL34; If this is your first visit, be sure to check out the FAQ by clicking the link above. EL34 vs 6CA7 vs KT77. EL34/6CA7 Mullard made XF1 date code, hole in centering pin, large dark brown Micanol base, RARE. The EL34 is a thermionic valve or vacuum tube of the power pentode type. Very balanced with excellent creamy distorton when driven, excellent bass, treble, & midrange tone. Electro Harmonix 6CA7-EH - At last something to replace the hole left since the EI 6CA7 went out of stock. It is intended for audio frequency power amplification service in either pentode, ultralinear or triode connection and single or push-pull/parallel applications. thetubestore. An authentic remake of the British Mullard EL34. EL34 and KT150 characteristics. You could compare it to the love child of a Siemens/ RFT EL34 and a GE 6L6. EL34 vs 6CA7 vs KT77. Love the RV50. EL34 Since a relatively high gain amp like a DSL relies on overdrive and distortion created mainly in the pre-amp and by the pre-amp tubes, it doesn't hurt to use a cleaner set of power tubes. A real beam-tetrode 6CA7, like EVH used, is rounder and smoother sounding like a big 6L6GC. The Svetlana SV6550C can be substituted for 6CA7 by modifying the amp's bias circuitry. I started with 6550's, then KT77's, then finally EL34's (did try 6ca7's but lacked crunch). The 6CA7 is the American designation for EL34, and some 6CA7 versions use beam power construction instead of a true pentode. Reports in the field say this is one of the most durable EL34 types currently available, and so far our tests agree with that. Not to be outdone, Sylvania introduced fat-bottled 6CA7 in US soon after. sharethemusic Post subject: Re: 6CA7 vs EL34 Sonics. Each wound string is precision wrapped with round nickel-plated steel onto a high carbon, hexagon-shaped steel core. The PT I believe will handle the extra heater load, even a pair of EL34. Various brands available. The sound however is not typical of an EL34 or 6CA7. I do like the 6ca7s more though since my amp is bright sounding. When it comes to tone, they do have a big impact. Produced in Russia by New Sensor. The E34L is a special low grid voltage version and is not always interchangeable. The purpose of designing this amplifier was to drive the B&W Signature 800 with 70W maximum output derived from EL34 Push-Pull Class B1 fixed bias operation. Most EL34 amps use a 1K (1,000 ohm) resistor. They're about the farthest thing from an EL34 possible and share absolutely no similarities whatsoever with a 6CA7. I currently running Winged "C" EL34s and like the sound overall. " Electro-Harmonix tubes are all new designs and are of excellent quality. Each wound string is precision wrapped with round nickel-plated steel onto a high carbon, hexagon-shaped steel core. Reports in the field say this is one of the most durable EL34 types currently available, and so far our tests agree with that. lower output. Sylvania "Fat Boy" USA These are known as "Fat Boy" tubes because 6CA7/EL34 tubes made in the USA have much fatter glass bulbs than their European EL34 equivalent. They are often found branded RCA as RCA NEVER made any kind of 6CA7/EL34 in their own plant. Re: EL34 vs. When I still had EL34 hifi amps (Unison Research S6 and Primaluna Prologue 4), I liked EH 6CA7's best; better defined bass, bigger stage. If you want to get YAQIN MC-13S EL34 check this out. You could compare it to the love child of a Siemens/ RFT EL34 and a GE 6L6. Bakis Productions 47,200 views. Chinese Psvane 6CA7-T Premium Grade. Totally different tube. com with top-selling El34 Amplifier brands. output power @ 3k load. To start viewing messages, select the forum that you want to visit from the selection below. Just two EL34 vacuum tubes can produce up to 90 watts of power, under ideal circumstances. The EL34, 6CA7 and KT77 also have similar pin outs. This is probably why the EL34 stands out from the group. What would be expected of the KT88s or 6550s as far as differences in sound between the two of them and between them and the EL34/6CA7 output tubes?. Similar problems are reported by Mark Wheeler in his. 5 volts) than the traditional EL34 vacuum tube. Almost all boxes are in bad shape, but tubes and printing on tubes are perfect! Two slots on plates, four support points on both spacers, folded plates (stapled), black base! These EL34 Philips Xf4 6CA7 were made in 1976, last version made by Philips in UK, in Blackburn plant. GEC KT77 - Ultimate EL34 GEC in West London, England introduced KT77 as the ultimate medium power audio tube. The EL34 is a much loved audio power valve with an anode dissipation of 25 Watts. The Power Pentodes can sound quite nasty (relatively speaking) due to how they produce third-order harmonics. Very robust and reliable due to its internal construction. The EL34 is a thermionic valve or vacuum tube of the power pentode type. EL34/6CA7 Mullard made XF1 date code, hole in centering pin, large dark brown Micanol base, RARE. Double O getter. This is from experience using both NOS versions in amps I've built. Use of these parameters shall be entirely at the user's own risk. 2 (23 votes, average: 3. Short History of KT77 and El34. It is a plug-in replacement for the EL34, but is more rugged. 6L6 vs EL34 vs 6CA7. In audio amps, the velvet smooth mids of EL34 is hard to miss. The Mullard re-issue which wears like iron but maybe not as warm. It is more of a hybrid. In a way, it contributed to the increased popularity of tube amps. Produced in Russia by New Sensor. Both are valves which can distort really sweetly when pushed hard, the EL34 being perhaps a bit bolder, the EL84 quicker to smooth into overdrive. Vacuum Tube - 6CA7, JJ Electronics - A true to form reproduction of a classic tube that will work in most EL34 amps. Use of these parameters shall be entirely at the user's own risk. The best EL34 variant I have used. Great mids, smooth, airy highs, incredible bass, wonderful 3D presence, and that natural glory. The EH-6CA7 seems to have a more detailed sound than EL34s, particularly in the mid-range. Gift Card 2020. lower output. The first working popular pentodes were the AL5 and EL5 in 1937. Octal power tube (Max Plate Watts = 25W) Sensational new high-gain EL34 tube with a very dynamic tone. Re: Tube confusion - EL34/6CA7? « Reply #16 on: 5 Nov 2016, 12:03 am » richidoo, I appreciate your more complete story and sharing your experiences which added details to the summary I was told. Totally different tube. I remember reading somewhere that the ones with a "B" designation have some differences and are more like a 6CA7. What you've discovered is the difference between two families of tube architecture, the Power Pentode (EL34, 6CA7, EL84) vs Beam Tetrode (6V6, 6L6). Grading and Matching. Psvane black glass treasure series. The 6CA7 and KT77 are common substitutes for the EL34. EL34 Reviews. I have used both the EH 6CA7 and the JJ 6CA7. JJ ELECTRONIC 6CA7: Really nice to have this tube available, it's not as bright in the top end as the EL34 or E34L or the KT77 but it really warm sounding and tames an overly bright amp giving a thick and woolly tone. Joined: Sat Nov 03, 2007 4:16 am Posts: 12 Location: Tecumseh, ON, CA Thanks Dan, that was short and clear. The "C"s have good balance and a. Coming from the first Tetrodes Valvo got the patents for the pentode in 1927. 20 watts should. The PT I believe will handle the extra heater load, even a pair of EL34. Top 5 Positive Customer Reviews for psvane el34 Turned it on for the first time, Let the tubes warm up for about 10 minutes before playing some jazz music on a pair of Mission Cyrus 782's. I found that I preferred the Treasure Series 6CA7 to the regular grade Shuguang KT-88 in my system for their extended highs and midrange beauty. Hand selected and matched using precise equipment, they are ready to ship!. Very surprised how they sound (Rivera Chubster 45 watt amp). Posted: Sun Sep 30, 2012 4:37 am. - higher input signal required for 6L6. However, you never know how they might have changed over the years. The power tubes behind Marshall's classic amps, these Svetlana Russian EL34 tubes give you the rich and creamy breakup that helped define the "British Tone. 6CA7 - American version of EL34 built as beam tetrode to avoid patents. 0% May 13, 2016 #1. With a DMM in series on plate. There is a JJ large bottle 6CA7 that supposedly sounds incredible but in most amps may fail, but in our low-stress design should be fine. Posted: Sun Sep 30, 2012 4:37 am. EL34 vs EL34L vs KT77 (and other tubes) Sign in to follow this. Although this is a replacement for the EL34 tube, the 6CA7 tube looks nothing like a pentode. EL34 = 6CA7 POWER PENTODE (click on links below to check stock) Philips Holland metal base 1955-1958 Philips Holland brown base double "D" getter halo 1958-1962 GE Big Bottle 1970s JAPAN 1960s - 1970s Mullard XF1 "FAT BASE" and welded plates 1958 - 1962 Mullard XF2 welded plates 1962 - 1973 Mullard XF3 stapled plates 1973 - 1975 Mullard XF4 stapled plates late 1975 - 1980 RFT East Germany 1970. คุณภาพ หลอดสูญญากาศสเตอริโอ ผู้ผลิต & ผู้ส่งออก - ซื้อ หลอดสุญญากาศ เหล้าองุ่น psvane 6ca7-t โครงสร้างหลอดไฮบริดขนาดกะทัดรัด จากประเทศจีน ผู้ผลิต. High frequency extension is better too. EL34/6CA7 High Performance Audio Power Pentode he Svetlana™ EL34 is a glass envelope power pentode having a plate dissipation rating of 25 Watts with convection cooling. The JJ's aren't bad but ive found they can have a grainy ,buzzy sound in vintage - non master volume type amps when they are really pushed. The carbon-sprayed black glass treasure series has better product stability, matching accuracy and sound quality than ordinary products. They aren't exactly just different sized versions of each other, one simply having out double the power output, but they are like fairly close family. Those tubes are not the same at all. I was going to get a quad of JJ KT77s, which seem to get raves from their users, but I received one word of caution from a very knowledgeable tube guy, that JJ KT77s have build quality problems & reliability issues. 6L6GC's are 30W, and EL34's are 25W. Taken from thetubestore. I'm not much of an el34 guy though so take that with a grain of salt. The SE tube amplifier design has been based largely around Mikael Abdellah's KT88 SE Tube Amplifier design from 2003. Monday-Friday 8:30 am - 5:30 pm Pacific. 6CA7 is the US equivilent of the EL34. output pentode 1( ) ()-60 -40 -20 0 0 100 200 300 0 200 300 400 500 EL34 EL34. By Matsushita. That list is in ascending order with the best last. A 6CA7 is a different type of tube than an EL34. This is a suitable replacement for any EL34 = 6CA7 POWER PENTODE tube type. 5A, plate dissipation 25W. These tubes are built with various components that manage electric currents as they travel around electrodes within an evacuated housing. • Special grid windings give a unique sound for both guitar and hifi • Perfect power tube for Dynaco ST-70 or vintage Marshalls, Hiwatt or other British Amps • 6CA7 equivalent. I can't speak for modern 6CA& versions but the NOS. output pentode 1( ) ()-60 -40 -20 0 0 100 200 300 0 200 300 400 500 EL34 EL34. I have used Shuguang EL34, GrooveTube EL34, Russian NOS 6P3S-E, ElectroHarmonix EL34 and the ElectroHarmonix 6CA7. Loading Unsubscribe from seas- lyd? EL34 vs 6L6 - Victory V40 The Duchess - Duration: 4:18. The EL34 is a true Pentode, the KT77 is a Kinkless Tetrode. The EL34 is a thermionic valve or vacuum tube of the power pentode type. EL34 is one of the most popular power output tubes today, and there is a large number of current production EL34 and variants. The circuitry is based on a time tested, ultra-linear push-pull design that made the sound of an EL34/6Ca7 based integrated amplifier the mainstay of frugal tube amp audiophiles while we weathered the rise and triumph of the new solid-state transistor world order. The 6CA7 is technically a different tube and has a bit more of an American tone as well as being much fatter. Far more reliable than the JJ KT77, and even more beautiful sonically. EL34 6CA7 Audio output pentode, the best choice for guitar amplifiers The EL34 6CA7 is an output pentode introduced in 1953 by Mullard and intended for use in audio amplifiers and modulators. (Sylvania/GE, I think) All of these are electrically very similar and more or less interchangeable, ratings permitting. Almost all of mine are one or the other. Once the popularity of the EL34 began to grow, competition quickly sprung up. Both are valves which can distort really sweetly when pushed hard, the EL34 being perhaps a bit bolder, the EL84 quicker to smooth into overdrive. Discover over 650 of our best selection of El34 Amplifier on AliExpress. The JJ EL34 is one of the most popular power tubes around. The best EL34 variant I have used. EL34 = 6CA7 POWER PENTODE (click on links below to check stock) Philips Holland metal base 1955-1958 Philips Holland brown base double "D" getter halo 1958-1962 GE Big Bottle 1970s JAPAN 1960s - 1970s Mullard XF1 "FAT BASE" and welded plates 1958 - 1962 Mullard XF2 welded plates 1962 - 1973 Mullard XF3 stapled plates 1973 - 1975 Mullard XF4 stapled plates late 1975 - 1980 RFT East Germany 1970. or anywhere in between, depending on the make of amp, and the anode voltages present. EL34 Reviews. Discover over 650 of our best selection of El34 Amplifier on AliExpress. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. com with top-selling El34 Amplifier brands. A real beam-tetrode 6CA7, like EVH used, is rounder and smoother sounding like a big 6L6GC. com over the years. Audiophile (Dec): 6GB8 replacing EL34? [email protected] lower output. I like the 6CA7's better but I am an EL34 type of guy. It's definitely got a bit of a 6L6 designed into it. I am just not a big fan of EL34s. TrAnsfer ChArACTerisTiCs pLATe ChArACTerisTiCs a. We agreed that I’d throw a few of my own tubes, including the Tung-Sol EL34B and Shuguang 6CA7-Zs I purchased from thetubestore. The Mullard re-issue which wears like iron but maybe not as warm. Those tubes are not the same at all. The el34 have a different vibe to them, chimey in a way. What you've discovered is the difference between two families of tube architecture, the Power Pentode (EL34, 6CA7, EL84) vs Beam Tetrode (6V6, 6L6). I am looking to do some tube rolling soon. Gold Lion KT77 / EL34. The Psvane 6CA7-T tubes are direct replacement to standard 6CA7 and EL34 tubes of all make. I'm not much of an el34 guy though so take that with a grain of salt. Conversely, the Jolida 502 cannot run the EL34/6CA7 as things are. Mjpflieger, the Jolida 302A/B is set up for the EL34 only. Followers 0. EL34 vs 6CA7: two power tubes that can cause a lot of confusion when purchasing replacements, because they're very similar and are, in fact, replacements for one another. EL34 = 6CA7 POWER PENTODE (click on links below to check stock) Philips Holland metal base 1955-1958 Philips Holland brown base double "D" getter halo 1958-1962 GE Big Bottle 1970s JAPAN 1960s - 1970s Mullard XF1 "FAT BASE" and welded plates 1958 - 1962 Mullard XF2 welded plates 1962 - 1973 Mullard XF3 stapled plates 1973 - 1975 Mullard XF4 stapled plates late 1975 - 1980 RFT East Germany 1970. A real EL34 is a pentode tube, vs. Re: EL34 vs 6CA7 « Reply #11 on: October 14, 2011, 10:43:30 am » EL34's and 6CA7's may work the same,but usually the sonic differences are large. Holland made, excellent sonics, some are CBS "Germany" labeled, some Amperex Bugleboy, and some Philips Miniwatt. They also ended up being produced in Canada, as well, but unfortunately the production of these tubes stopped in the mid 1980's. E34L The 6L6 doesn't draw more plate current than an EL34 or a E34L, it draws less. Original: PDF EL34/6CA7 Mullard el34 Svetlana EL34 EL34 EL34 tube pentode el34 6CA7 EL34 amplifier circuit tube el34 data EL34 EL34. My ears have adapted to the brighter sounds as well. The tube delivers all the mid punch you would expect in an EL34 but also has a top end that is more open and bright. What would be expected of the KT88s or 6550s as far as differences in sound between the two of them and between them and the EL34/6CA7 output tubes?. An extremely faithful reissue of the XF2 Mullard EL34 from the 1960's. Both are valves which can distort really sweetly when pushed hard, the EL34 being perhaps a bit bolder, the EL84 quicker to smooth into overdrive. Shop with confidence. These tubes can take the heat! Price includes extended burn-in and precision matching. Calculate Plate Dissipation In Cathode Biased Output Stage Based On Voltage And Resistance Readings In these calculations, 5% of the cathode current is assumed to be screen current. I like them better but I like the kt77's way better than those even. Getting harder to find - Stock up now before they are HISTORY. The Tung Sol is an EL34B. 6CA7: EL34 amplifier circuit. They also ended up being produced in Canada, as well, but unfortunately the production of these tubes stopped in the mid 1980's. The PT I believe will handle the extra heater load, even a pair of EL34. Highs are somewhat brighter, and bass is both deeper and more detailed. Think of the beam power 6CA7 as a 6L6GC/EL34 hybrid (another option for this is the KT77 tube). With the launch of the new Carvin 'Legacy' amplifier Stevie chooses to use PM EL34/6CA7 tubes, the new upgraded EL34 from PM Guitar Tubes. These used but tested good tubes have repaired centering pins on the base, and the tubes are good as new!. I like both EL84 and EL34 amps. They aren't night and day but the e34l is definitely more agressive and has more low end chunk than the regular el34. คุณภาพ หลอดสูญญากาศสเตอริโอ ผู้ผลิต & ผู้ส่งออก - ซื้อ หลอดสุญญากาศ เหล้าองุ่น psvane 6ca7-t โครงสร้างหลอดไฮบริดขนาดกะทัดรัด จากประเทศจีน ผู้ผลิต. An authentic remake of the British Mullard EL34. It is more of a hybrid. The 6CA7, 6L6, 6550, and KT88 are beam tetrodes, while an EL34 is a pentode. The E34L is a special low grid voltage version and is not always interchangeable. They also ended up being produced in Canada, as well, but unfortunately the production of these tubes stopped in the mid 1980's. The valve has the widest frequency response and the highest plate dissipation, 30 watts, out of all the valves tested. A Major improvement over other 6CA7's. NEW, NOS in original box. 6CA7 and EL34's. All prices are per tube. It may be a little more 35 ma or a little less 25 ma. I think it would be a bad swap. We carry a huge selection of EL34 / 6CA7 / KT77 tubes for your amps. Try a 6CA7 in place of an EL34 for more pronounced low-end frequency response with a little more headroom. It became popular pretty quickly. - higher bias required for 6L6. This classic big bottle 6CA7 is a tetrode rather than a pentode like the EL34. thetubestore. Re: KT77 vs. To my ears a 6CA7 is tighter more focused than an EL34 and has more mids than a 6L6. Then of course you have the fat bottle 6CA7, which is more like a miniaturized, straight sided 6550 w. (*)These specifications are provided 'as-is', with no warranty of any kind. I like them better but I like the kt77's way better than those even. SKU: N/A Categories: New Power Tubes, The EL34 6CA7 and KT77 Tube Tags: 6CA7, Premium, winged c. This amplifier was featured on the January 2003 Issue of the "High-Fidelity Audio: Radio Technology" by Mr. I think it would be a bad swap. May 2004 edited February 2005 in 2 Channel Audio. Socket connections are shown as bottom views. from customer Lyle C. The valve has the widest frequency response and the highest plate dissipation, 30 watts, out of all the valves tested. Hand selected and matched using precise equipment, they are ready to ship!. I preferred the JJ 6CA7. Upscale Audio 2058 Wright Avenue La Verne, California 91750 (909) 931-9686. It's definitely got a bit of a 6L6 designed into it. They are fully computer tested using the Roetest professional system and the famous TV-7D/U. The best EL34 variant I have used. Although power pentodes and beam tetrodes are based on different principles of operation and have different internal constructions they are functionally closely equivalent. By Matsushita. Just two EL34 vacuum tubes can produce up to 90 watts of power, under ideal circumstances. The 6CA7, 6L6, 6550, and KT88 are beam tetrodes, while an EL34 is a pentode. In a way, it contributed to the increased popularity of tube amps. Select 1 for a pair PAIR 1: 48. So, JJ now makes something like three or four varieties of EL34/6CA7. Grading and Matching. output pentode 1( ) ()-60 -40 -20 0 0 100 200 300 0 200 300 400 500 EL34 EL34. The EL34 Gallery 6CA7 E34L CV1741 KT77 The story of the developement of the EL34 tube is not short. The only thing I don't like about the SED Winged =C= EL34 power tube is the price (yes, I know what's become of the company, etc. Clean you might not tell the difference but, in general, a 6CA7 will offer more definition when overdriven where s EL34 will be thicker/creamier. Typically, fat bottle 6CA7's can handle more voltage and have better low end. Re: KT77 vs. Lets says 4 years or so down the road you lose a tube. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. The EL34 is a pentode, while the 6CA7, which delivers a similar range of power output, is a beam tetrode which RCA referred to as a beam power tube. Other EL34's to consider are the rare and expensive SED Winged C which is very good sounding. EL34 MULLARD "XF2" DOUBLE HALO 1962-1968 - Mad Professor amp, Marshall 50 watt Plexi - Germino Fillmore Classic, VOX AC50, CJ Premier 4, Dynaco ST70 - Matchless Chieftain 1995 - Park 75 - Cornell Plexi 45/50 2003 - Two Rock - Hiwatt DR-103 1971 - Aestetix power supply - ASL aq1006-845 dt - 65AMPS Producer - Tophat Emplexador TO BUY EL34 MULLARD XF2 DOUBLE HALO PAIRS and SINGLE TUBES. EL34 is one of the most popular power output tubes today, and there is a large number of current production EL34 and variants. Re: EL34 & 6CA7 difference? « Reply #6 on: 19 Dec 2008, 10:21 pm » I remember reading somewhere comprehensive listening comparison between 6CA7 and EL34 but, as Tybee said, it is likely to be amplifier dependent. These tubes are built with various components that manage electric currents as they travel around electrodes within an evacuated housing. Description Additional information Reviews (6) Description. Messages: 2,553. They aren't night and day but the e34l is definitely more agressive and has more low end chunk than the regular el34. EL34/6CA7 Matched Pair Amperex Holland made, Bugle Boy type, brownbase, XF3,XF5, or XF4, dual "D" getter. The differences become even more noticeable when the tubes are pushed into O/D and distort. For a while, the EL34 and the 6CA7 became the single EL34/6CA7, while production of the KT77 ceased in the 1980s. I currently running Winged "C" EL34s and like the sound overall. The 6CA7 are more balanced but hard to describe, more lows and lower mids, uninteresting high/top end, little less midrange overall, when compared to the el34. Discover over 650 of our best selection of El34 Amplifier on AliExpress. - separated cathode and suppressor on EL34, not on 6L6. A schematic of the SE KT88 tube amplifier that I have built is. from customer Lyle C. Produced in Russia by New Sensor. however if you have a great amp with lots of low end and can use either el34 or 6l6s, the 6l6s would be the best choice. Premium high-voltage power pentode. The first working popular pentodes were the AL5 and EL5 in 1937. The best EL34 variant I have used. The differences become even more noticeable when the tubes are pushed into O/D and distort. The 6CA7's add some of the thump of the 6L6 but still retain some of the 34's crunchy mids. The purpose of designing this amplifier was to drive the B&W Signature 800 with 70W maximum output derived from EL34 Push-Pull Class B1 fixed bias operation. • Special grid windings give a unique sound for both guitar and hifi • Perfect power tube for Dynaco ST-70 or vintage Marshalls, Hiwatt or other British Amps • 6CA7 equivalent. And Rodabod, the 6CA7 is roughly equivalent in specs to the EL34, the exception being that the EL34 has a suppressor grid (a true pentode) and the 6CA7 is a beam forming pentode/tetrode (depending on who you're asking, it's considered a pentode or a tetrode). 0% 6CA7 1 vote(s) 10. I have used both the EH 6CA7 and the JJ 6CA7. organ Posts: 5,022. Vacuum Tube Warranty & Return Policy. Octal power tube (Max Plate Watts = 25W) Sensational new high-gain EL34 tube with a very dynamic tone. The JJ 6CA7 tube looks and sounds like a 6L6 but biases like an EL34. 5A, plate dissipation 25W. • 6CA7 equivalent According to the technical journal, Vacuum Tube Valley, "The Electro-Harmonix EL34EH is balanced throughout the entire music spectrum. It's 10 times smaller than normal. All prices are per tube. The 6CA7 is technically a different tube and has a bit more of an American tone as well as being much fatter. Hi All I have had it confirmed from the manufacturer of my Mastersound DuVenti EL 34 amplifier that I can use KT 77 valves. The EL34, the CLASSIC British tone, loved by many. For a while, the EL34 and the 6CA7 became the single EL34/6CA7, while production of the KT77 ceased in the 1980s. 6CA7 - American version of EL34 built as beam tetrode to avoid patents. The E34L is a special low grid voltage version and is not always interchangeable. The first working popular pentodes were the AL5 and EL5 in 1937. Shop the top 25 most popular El34 Amplifier at the best prices!. This is a suitable replacement for any EL34 = 6CA7 POWER PENTODE tube type. They have a very good balance of low end and detail. Love the RV50. 6CA7-Z is high property audio output pentode, its anode limited dissipation power is 25W, the output power is over 10W when it is used as class A1 in amplifier single tube, and it is over 35W when it is used as class AB1. This is probably why the EL34 stands out from the group. I have about 100 hours on them but break in only took about 20 or 30. We also indicate top sellers for the EL34 tube type. Posted: Thu Jan 24, 2019 12:31 am. EL34 Since a relatively high gain amp like a DSL relies on overdrive and distortion created mainly in the pre-amp and by the pre-amp tubes, it doesn't hurt to use a cleaner set of power tubes. EL34; If this is your first visit, be sure to check out the FAQ by clicking the link above. Re: EL34 vs. 50+ videos Play all Mix - EL34 vs EL34L vs KT77 Marshall jmp YouTube JJ Power Tube Comparison (EL34, E34L, 6CA7, 6L6)(HQ Audio) - Duration: 6:44. Socket connections are shown as bottom views. The JJ's aren't bad but ive found they can have a grainy ,buzzy sound in vintage - non master volume type amps when they are really pushed.

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