More than happy with the results. NOS Discontinued 6L6 tubes. Q: I saw the Tech Tip on July 30 on swapping 5881 tubes with 6L6 tubes. Tube Data Sheet Locator. pdf (453832 bytes) 6L6GC Ei P 6L6GC. A 50 watt amp with two 6L6 or EL34 tubes, or a 100 watt amp with four 6L6 or EL34s, is a push-pull amp. V1, V2, V3, V4: 6L6GC (factory loaded) or EL34, matched sets; V5: ECC83 FQ, input tube; V6, V7: ECC83 selected; V8, V9: ECC83 standard. 2 amps per tube vs. Where the EL34 is a true pentode, the 6L6 is a beam tetrode. 6L6 tubes have been a mainstay in Fender amplifiers for more than 70 years. Photos below show testing of a new Sovtek 5881/6L6WGC using two different receiving tube manual examples from 6L6GC “Typical Operating Conditions, Class A1 Amplifier – Pentode”. guitar music of all styles from the ’60s onward. 6L6GC Author: RCA Subject: FP-2012-01-07 Created Date: 1/8/2012 12:17:39 AM. 4 inputs normal and bright for each channel, each channel has volume and tone and there are speed and intensity controls for the tremolo. 6L6 tube types can vary greatly in size, so check the clearances in your chassis. There will be a impedance mismatch when running the amp with tubes the output transformer was not designed for. The part at the top they're talking about earlier 6L6 tubes vs 6L6GC. In overdrive, it offers a tight and frosted crunchy bite. 6L6 / 5881 / KT66 Beam Pwr Tetrode; 6550 / KT88 Beam Pwr Tetrode; 300B Power Triode; Rectifiers. Cortez The Killer Baby It's You. 5W screen) and the newer 6L6GC (30W plate and 5W screen). pdf (916149 bytes) 6L6GC : General Electric P 6L6GC. The 7027A tube has similar power ratings but with a different pin-out. 00 from Mesa), so price is not a. AWC · Banned. Other versions of the 6L6 valve included the 6L6G, 6L6GA, 6L6GB, and the final version which was the 6L6GC. The 6L6 is garbage for audio, crude & nasty sounding by comparison. The TAD 6L6GC-STR is your perfect choice if you are up for the sound of the rock legends. The Tung-sol 6L6GC-STR tube is a true 6L6GC tube that is rated for plate voltage up to 500V and up to 30 watts of power. I have used a pair of old 10Kohm Tecnotrafo (Italy) push-pull transformers with UL. Lots of info on this if you do a search. The 1483 was the smallest in the piggy back, head and cabinet portion of the run with a single 15" Jensen speaker. Electro-Harmonix 6L6 - Platinum Matched Item 6L6EHPL. However, the headshell is really small, so I'm pretty limited when it comes to choices of 6L6's. The Harma SB-6L6 is a specially selected version of the Philips. Of course you are welcome to try, you may find your EL34 G2 is already glowing cherry red under full load anyway. That’s an incredible bargain for such a fine tube, so if you can use this 6L6 type tubes I recommend you give them a whirl - you will not be sorry. Yes they are made in china with European QA and Engineering they actually sound like NOS USA 6L6s whith the short bottle 6L6 WGC more like the ols GEs and the tall bottle 6L6GC more like trhe RCA Blackplate. 99 Spend over $50, Get $20 2-Day Shipping! GT-EL84-R Duets. The Mesa/Boogie 6L6 STR 440 Duet amplifier tube matched pair gives your amp the best 6L6 performance possible. pdf (876597 bytes) 6L6GC Tung-Sol P 6L6GC. The 6L6 I prefer is the 6L6WGB which is also known as the 5881. I have the Weber W022772 power transformer (300-0-300 or 330-0-330) and a nice Allen TO11S 4000 to 4 or 8 ohm output transformer. In the service manual for mine, it looks like the reference to using 6L6's was handwritten after the fact. The tone is often described as “big” compared to a 6L6. Electro-Harmonix 6L6GC vs. KT88 tube option: is with 2x KT88 power tube, 2x preamp tube and a rectifier tube Without any tube option: is the version wihtout any tube Learn more $415. Diese kleinere Dom-6L6 ist (über alles) 10 cm hoch und hat einen größten Kolbendurchmesser von 4,3 cm. Petersburg, Russia. Pure tone heaven and they really take a beating! 05-21-06, 04:51 PM #8. 00 Buy Now 6L6GC-SVETLANA WINGED C Svetlana Winged C The Svetlana 6L6GC was designed based on the famous Sylvania STR 387 6L6GC and manufactured in the JSC Svetlana factory. Later the 6L6G had an all glass envelope - this improved the radiation cooling of the anode. So I decided to throw together a quick compare/contrast to see how vast or how little of a difference tube brands and if chassing the rabbit of tone down the hole of tubes and tube. Looks nothing like a Tube Amp Doctor, Ruby, Mesa, Sovtek, Tungsol etc or other 6l6GC in production. I think the EL34 would be good for a metal type chug chug rhythm for 80's metal, but for most other stuff I liked the 6L6 fullness. 6l6gc 是 6l6的改进版,说是改进其实 也是换汤不换药,屏耗稍微增大点而已,有的公司把屏耗稍微增大点的管子 命名为5881 。 其实 最一开始 美国人想买欧洲开发的KT66 管子的专利,但是欧洲佬 不卖 美国才在 6V6的基础上 自力更生 发展出了6L6 。. This results in 5881 tubes having less output power than a 6L6 (how much difference depends on the specific tubes) and also lower clean headroom , meaning a given 5881 may start to distort at a lower level. Nearly all 6L6 tubes don't use those pins. Although power pentodes and beam tetrodes have some differences in their principles of operation (the beam forming plates of the beam tetrode or fifth electrode (3rd grid) of the pentode, both serving to hinder the return of unabsorbed electrons. 6L6 seem to have a good low end and punch while EL34 has the warmness british tone. A nice upgrade over the Sovtek 6L6, it goes great in Fender amps. Perfect anywhere 5881s, 6L6Gs or EL37s are normally used. Joined Mar 31, 2008 · 2,071 Posts. 500 V) and plate/screen dissipation (20/2. The complex midrange and sweet heights are a class of its own. Midi control, full digital programming without midi, & all tube analog tone. 5 amps per EL34 tube. g the “Fender Chime”), while still allowing plenty. Equivalent to the 6L6GT and 5881. Without a thorough knowledge of tube types and their substitution possibilities, you may be over-paying for your new or NOS tubes you employ, or just pick the wrong ones. TRANSFORMERS. Discussion in 'The Tone Zone' started by American Viking, Jan 14, 2011. (Max plate voltage 600 on the 7027A and 500 on the 6L6GC. Qty: Information: Manufacturer: Mullard. The 6L6 is garbage for audio, crude & nasty sounding by comparison. Other tube types in the 6L6 family include: 6L6, 6L6G, VT-115A, 6L6Y, 6L6GA, 6L6GAY, 6L6WGA, 6L6GB, 6L6WGB, 1614, 1622, 5932, and 7581. 6L6 variants. Visually comparing a picture of a TAD 6L6 to a Mesa STR-440 leads me to believe they are the same tube, and both of them seem to be from Ruby Tubes. Pure tone heaven and they really take a beating! 05-21-06, 04:51 PM #8. Question: What are soft, hard, and medium rated tubes? Answer: When power tubes are matched, they are frequently classified by the distortion and break-up characteristic. 4 inputs normal and bright for each channel, each channel has volume and tone and there are speed and intensity controls for the tremolo. by Marc Johnson for TheToneKing. thetubestore. 6L6GC was originally a very different tube made for TV. Octal power tube (Max Plate Watts = 30W) TAD 6L6GC-STR RCA-Style black-plate. I put switch in my 5f2a to change cathode resistors for a 6v6 or a 6l6. 95 each) is an in-house design from www. EL34-STR447 Pareja Válvula de potencia Mesa Boogie (ref:1035) € 86,00 € 83,42 ( € 68,94 sin i. It also features mica spacers with metal springs to eliminate tube rattle and microphonics. The 7027A duplicates Grid #2 on pin 1 and Grid #1 on. Well, the metal 6L6 sucks in guitar amps, I have never tried it in an SE amp. Sovtek 5881 - The workhorse of the 5881 family. Only 6L6GC is rated for 500V. ) will change optimum plate to plate load impedance. All the voicing & gain staging switches you need to dial in the exact tone in your head, quickly & easily. The grid (G2) maximum voltage on a 6L6 is lower than EL34, and the 6L6 is a lower powered older valve than the EL34. Poner 6L6 a un amplificador con EL34. 9 amps of heater current, a KT90. The TAD 6L6GC-STR is your perfect choice if you are up for the sound of the rock legends. 真空管は6L6 vs EL34のどっちが好み? 真空管の6L6とEL34問題は、僕も昔から気になってたことです。 何となく自分の好みは分かってましたけど、 &nbs・・・. Anyhow, to my ears, the Svetlana 6L6 is the best of the current produced tubes and is in a league of its own compared to the Sovtek. +EQing for a more technically correct response on both ends. Their glass envelopes enhanced radiation cooling of the plate and permitted higher maximum plate dissipation ratings. I generally operate the 6146 PA at the same current as the 6L6 while operating AM. 6L6GC can replace any other 6L6 or 5881 type tubes. Yes they are made in china with European QA and Engineering they actually sound like NOS USA 6L6s whith the short bottle 6L6 WGC more like the ols GEs and the tall bottle 6L6GC more like trhe RCA Blackplate. Other early-production 6L6 types include the 6L6G (bulbous glass "ST" [shouldered-tube]type), 6L6GX (large bulbous glass, ceramic base), 6L6GA (smaller bottle bulbous glass), 6L6GB (first straignt-sided glass version), 6L6WGA (or 5932), 6L6WGB (or 5881), and 6L6GC. The 6L6 has plenty of headroom and does not break up nearly as quickly as the EL84 or EL34 tubes. Das nächste Bild zeigt eine 6L6GC aus chinesischer Produktion, im sog. 0: 15: A P/P: 270: 270: 72. - Zum Größenvergleich habe ich eine Stahl-6L6 danebengelegt. The classic American amplifiers of the ‘50s and ‘60s inspired us to create the, errrrr, American Classic series. > 6l6 January 27, 2011. Where the EL34 is a true pentode, the 6L6 is a beam tetrode. Just plug into your Deluxe and re-bias, no circuit changes required. +EQing for a more technically correct response on both ends. Uses 6V6 0r 6L6 power tubes and 5U4G or GZ34 rectifier to dial in the power and feel for your gig or recording preference. The gold plated grids and special plate alloy gives this valve improved plate dissipation and greater. Custom-ordered this amp from Blair Lamphear, designer/builder of Niteshade Audio. testitulokset: Lue arvostelu. Amperex (USA) 111. 6A of filament current capacity, or a total of 3. Hello good MLP folks. Below is extracted part of a review of the Leben CS600 "For the tube-rollers, there are cathode resistor and plate switches which can be toggled in various combinations to allow for a wide array of driver tubes. The vintage correct valve for that is the Tung Sol 5881 or Tung Sol 6L6WGB (same valve). The tubes have great tone and nicely capture the “6L6 sound”, characterized by sparkling highs, warm mids, and controlled bass response. Tutti i suffissi alle sigle delle 6L6 identificano sostanzialmente una capacita' differente di sopportare le alte tensioni di alimentazione. It has solid, military-spec build quality, which makes it very sturdy and dependable. The Tung-Sol legacy continues with the introduction of the new 6L6GC STR. Open quick view dialog for Groove Tubes Gold Series GT-6L6-GE Matched Power Tubes { } Tung-Sol 6L6GC STR Matched Power Tubes. Discussion in 'Amplifiers' started by Dusty Chalk, I started out a 6L6 (Fender) guy and have Fender and Mesa amps I love. GT-6L6-S Quartets. 6L6 / 5881 / KT66 Beam Pwr Tetrode; 6550 / KT88 Beam Pwr Tetrode; 300B Power Triode; Rectifiers. You can swap the KT88 output tubes with 6L6, or EL34 / 6CA7. This one get's Uncle Kevvy's seal of approval. plate voltage (375 V vs. Rectifier Tubes Test (5U4GB vs. The manual states I can just drop in any pair of 6V6 or 5881/6L6 tubes in there without making any adjustments. Warning: 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. Re: 6L6GC vs. Although power pentodes and beam tetrodes have some differences in their principles of operation (the beam forming plates of the beam tetrode or fifth electrode (3rd grid) of the pentode, both serving to hinder the return of unabsorbed electrons. 14) Posted by Chip647 on 2015-02-21, 09:44:02 (108. Footswitch matches chassis. However, you need to know how your amp is wired. -Tubes: 1-5U4, 2-6L6/5881, 3-12AX7, 1-12AT7(NOS) -Tube driven transformer coupled reverb, full size Accutronics tank -Speaker: 1 Eminence/Victoria OEM 15 inch speaker. The poweramp is equipped with 6L6GC, just like his bigger brother, the Fireball 100. pdf (722790 bytes) (fr) 6L6GC RCA (HB3) P 6L6GC. Consider these for any 6L6 based amp if you need a lot of headroom. This tube is now made in Slovakia and is a favourite amongst guitars. They draw more current than a standard 6L6 (1. It's a very full-sounding tube works really well across the board. Can only be used on amps that call for 5881; KT66 - A 30W variation of 6L6, requires higher heater current; You can use 6L6GC where any of the other tubes are used, so if you aren't sure, go with 6L6GC types and you will be fine. The 6L6GC does not use pin 1 or pin 6. There are at least 3 that discuss using a 6l6. In the summer of 2002 I decided to build a pair of mono block parallel single ended DIY tube amps, using the 807 tube. I have SED "winged C" 6L6's and have zero complaints with their performance and presentation, but I'm trying to gain an idea on how the GE 6L6GC or 7581A compares to the SED sonically. The Ruby Winged =C= 6L6GC is the same as SED 6L6 winged =C=, and the Ruby 6L6GC-CZ is a relabeled JJ. 0 of 5 stars (19 Reviews). Looking at it its a propiatery 6l6GC made for Grovetubes by shuguang. Aug 20, 2011 #9. KT66 vs 6L6GC NOS Tubes. Be sure to check out our review of the Tungsol 6L6GC-STR tube. You could compare it to the love child of a Siemens/ RFT EL34 and a GE 6L6. The 6L6GC has a higher voltage rating than other early 6L6 tubes. I will install the 2 new pre-amp tubes I recently ordered. All these had glass envelopes. Svetlana 6L6: This is now another sovtek tube that falls short of the original Svetlana in all respects. Peavey Electronics Corp. In 2003 wordt de 6L6 nog steeds geproduceerd. The SVETLANA 6L6GC is a rugged reliable replacement for any 6L6 or 5881 type. JJ Electronics Amplifier Tube T-6L6GC The JJ Electronics Amplifier Tube 6L6 is one of the best 6L6 tubes on the market because it is the one that everyone compares their to. pdf (679640 bytes) 6L6GC : JJ P 6L6GC. The tone is often described as “big” compared to a 6L6. I have used a pair of old 10Kohm Tecnotrafo (Italy) push-pull transformers with UL. Just recently purchased a quad of Tung-Sol 7581a’s and I believe it’ll be my go to 6L6GC style tube from here on out. GE from 1961. The 6L6GC is different and the 7581A is a slightly beefed-up 6L6GC, more or less. You can build a circuit with 6L6 tubes that crunches like an EL34 loaded Marshall if you know what you're doing. All of the original design features have been precisely adhered to in order to evoke the well-known and legendary sound, a sound that has been penned into. 6L6 for sure. In the service manual for mine, it looks like the reference to using 6L6's was handwritten after the fact. A real KT66 will sound better than any 6L6, but not by enough to consider replacing it for any EL34. Skip to main content Skip to footer site51288970926970 site51289499824437551375 New H70062 JJ Electronics 6L6GC Power Vacuum Tube site51288970926970,site51288970926968. 59 € Mesa/ Boogie Mark V 6L6 vs EL34 Tube Shoo­tout Com­pa­rison. The 6L6GC tubes we carry work great in any 6L6 tube amps. I put switch in my 5f2a to change cathode resistors for a 6v6 or a 6l6. Posts: 16,656. The differences become even more noticeable when the tubes are pushed into O/D and distort. Conversely, if a gig amp is needed, the VickyVerb is that amp too, and can operate with 6L6, KT66 or EL34 power tubes for 15-20 watts of stage power. I have tried a pair of JJ 6V6S, Sovtek 5881/6L6WGC, Tung Sol 6L6GC-STR, and Tung Sol 5881. Output Pentode Quick reference data • Anode current Ia=48mA • Transcoductance S=11,3mA/V. I try to strike a happy medium between a true 5881/wgb (23W) and gc type (30W) and bias them using a 26 or 27W rating. How is the proper Primary Impedance Determined when designing amps? I mean what data on a tube data sheet would tell you that 4 6L6GC's will sound good with 2K plate to plate, or that 4 EL34's will sound good with 1. General Electric Co (USA) 188. use 6L6GC (or its variants) instead. It's thicker glass envelope and sturdy construction is designed to work in the most demanding applications. EL34-STR447 Pareja Válvula de potencia Mesa Boogie (ref:1035) € 86,00 € 83,42 ( € 68,94 sin i. They are packed with lot's of punch and a sweet sweet tone, very musical. 6L6-GC Everything I've read on the net says that 7027 tubes can be used in place of 6L6GC'sother than needing to re-bias, am I going to run into problems using these in my Fender amp?. TAD has the remakes of the all time favorite 6L6 classics by RCA and GE. The MC240 is wired to accept both 7027A and 6L6GC output tubes. How you operate the tubes (push-pull, push-pull parallel, ultra-linear, class, B+, bias, operating points, etc. Looking at it its a propiatery 6l6GC made for Grovetubes by shuguang. I have used a couple of amps in the video and made cathode current and power output measurements on three types of tubes 6L6GC, KT88 and EL34. The GE's have a bit more high end and headroom than the Svetlana, but it's close. 95 from the Tubestore and 42. Perfect 6L6WGB /5881 tube for Fender amplifiers requiring 5881's or 6L6's. When you need a tube designed for performance, you'll appreciate what Tung-Sol has brought back to the market. Give Gift; Back to Top; Post by myles on Feb 6, 2009 10:53:27. Using SED specs for apples to apples, you'll bias the 6550 using 680 DC plate and 480 DC screen vs around 450 and 400 6L6GC in an AB configuration, IIRC you'll bias the 6550 hotter - but don't quote me on that though. In recent years, during which the brand's following in North America has seen the most growth, the uniquely styled Haut-Brion has stood out as the only Shindo amplifier whose vacuum tubes are all contained inside a. Warning: 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. Price: $81. I am told that higher plate voltage heads are the best for having a clear, crisp sound, and I have to agree that these are sound characteristics of my KMD solid state preamp 6L6GC output head. With a beefier OT, the wattage output doubles if you use a 5881 or 6L6GC, from 5-6 watts with a 6V6 to 10-12 watts with a 6L6GC. Mesa Boogie Str 440 6L6 Duet Model: 6L6GCSTR440MESA. Hytron (CBS-Hytron) 210. Rated Power Consumption. The wait is finally over… the EZG-50 is here! The EZG-50 has the definitive 6L6 clean sound. The 6L6 is a completely different design than the EL34. 99 Spend over $50, Get $20 2-Day Shipping! GT-EL84-R Duets. If you use them in an application that calls for earlier versions of the 6L6,(6L6, 6L6GA, 6L6GB, 6L6WGB, 5881), then they will work fine. The Tung-Sol name and trademark have been acquired by the New Sensor Corporation. Bass, Middle, Treble and RAW controls plus BRIGHT switch. The best current production 6L6 type tube is the Sovtek 5881, which electrically is a 6L6GB. 270W at full power. Today, the 6L6GC is one of the most common power tubes used for electric guitar amplification and there is an almost overwhelming supply of current. I love tubes, and I could type for hours about various styles of tubes like 6L6 vs EL34 vs KT88 vs EL84 etc. 6L6GC STR TUNG-SOL. Arguably the best sounding 6L6GC. 5-volt battery designed for high drain devices which require rapid pulse energy. We prefer bias at 32-35mA, perhaps hotter if you like more gain. NOS Discontinued 6L6 tubes. I also think 5881's have less pronounced highs and more rugged, military spec construction. What you've discovered is the difference between two families of tube architecture, the Power Pentode (EL34, 6CA7, EL84) vs Beam Tetrode (6V6, 6L6). That said, in my ears and in my amp (Egnater Tourmaster 4100 head), the Tung Sol 6L6GC / 7581 wonders. (Max plate voltage 600 on the 7027A and 500 on the 6L6GC. It also features mica spacers with metal springs to eliminate tube rattle and microphonics. Warning: 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. Just recently purchased a quad of Tung-Sol 7581a's and I believe it'll be my go to 6L6GC style tube from here on out. There are others as well, I just offhand don't remember the bases. The 6l6 gives the amp a tad more headroom and a slightly different sound. The GE's have a bit more high end and headroom than the Svetlana, but it's close. You can build a circuit with 6L6 tubes that crunches like an EL34 loaded Marshall if you know what you're doing. Bass, Middle, Treble and RAW controls plus BRIGHT switch. The second question. The TAD 6L6GC-STR is your perfect choice if you are up for the sound of the rock legends. by Marc Johnson for TheToneKing. This is most commonly used 5881 on the market today. The grid (G2) maximum voltage on a 6L6 is lower than EL34, and the 6L6 is a lower powered older valve than the EL34. Finally I have settled down on k55\[email protected] 450hz and D220 from 1. KT66 for the D-Mars is intruiging. I'm blown away. My application is a Jukebox PP amplifier that puts about 400v on the plates and puts out about 25 watts. High-Quality Russian 6P3S-E / 6P3SE (6P3C-E / 6P3CE) output beam tetrode. The 6V6GT is about 1/2 the output the a 6L6GC. 5W screen) and the newer 6L6GC (30W plate and 5W screen). You could compare it to the love child of a Siemens/ RFT EL34 and a GE 6L6. TRANSFER: You may not rent, lease, lend, sell, redistribute, sublicense or provide commercial hosting services with the Software. TAD RT212 Tube 6L6GC -STR Duett. Black carbonized plates and used as original equipment in most 1960's and 1970's Fender guitar amplifiers. There will be a impedance mismatch when running the amp with tubes the output transformer was not designed for. Warning: 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. The circuit (and output transformer) the tube is sitting in dictates most of the tone, not so much the tube. " Older 6l6WBT tubes, however, are not recommended because of the higher plate voltage required by the tube. Single ended amps are typically limited to 10 watts or less so are restricted to higher than average efficiency speakers, small rooms, limited loudness or a combination of these factors. 6V6's are just weak in that area. I remember that 6L6 (also the 5881 and KT66) can diffuse and 25W 6L6GC can broadcast 30. This is most commonly used 5881 on the market today. For example: The 6L6GC means 6L6 Glass envelope, third version. Superior power beam tetrode, engineered for demanding high fidelity, reliability and overall warmth. Traditional brown base. Tung-Sol 6L6GC STR Power Tube Features at a Glance: Vintage-spec 6L6GC STR tube commonly used in vintage American amps High-quality production for ensured operation Ideal power tube for classic guitar amp tones. If amp is cathode biased, changing to 6L6 tubes is a simple matter of changing the connections as noted above, then increasing the size of the cathode resistor by a factor of about 2. The 6550 was derived from the earlier 6L6 and has higher output and plate voltage than the 6L6. Uses 6V6 0r 6L6 power tubes and 5U4G or GZ34 rectifier to dial in the power and feel for your gig or recording preference. 6L6GC included asking for $700. For example, if the original was 170 ohms, increase to 390 ohms. A 6L6GC in triode gives up a little power compared to a 300B - but the real magic will happen when used as a proper beam pentode. The famous Shuguang “Coke Bottle” power tube known for its sweet, warm tone. very tight bottom. From our review: "Big, open, articulate; these are the words that came into my head when listening to the JJ tubes. A real KT66 will sound better than any 6L6, but not by enough to consider replacing it for any EL34. Only the 6l6 vs el34 etc. " These tubes are usually associated with American-made amplifiers more so than British. Sovtek claims it has 20 percent higher output than their 5881WXT. 00--6L6 Click Here : 6SB7, 6SB7Y metal : 5. Brimming with brawny tone, the EVH 5150III 50W 6L6 112 Combo is arena-sized sound in a Celestion-powered compact package for more convenient transport. This one get's Uncle Kevvy's seal of approval. Re: 6l6GC vs EL34 Tue, Feb 12, 2013 11:35pm JTyson wrote: You should check it no matter what you end up choosing, and you'll need a bias checking device of some kind to do so unless you have probe jacks to go direct with a meter. So the 6L6GC will give you more power and more clean headroom. GE from 1961. It is very clear and crisp. This video was inspired by a question I was asked about swapping KT88's in place of EL34/6CA7's. 6L6GC: pdf 807: pdf curves, pdf RCA, pdf STC Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. The Tung-Sol 7581a's do get confused with the Tung-Sol 7581's but difference being the 7581's are 30watt vs the 7581a's being true 35 watt like the old school 7581a's were. Hello good MLP folks. To complete my tone array im looking for heads with El34's. They will work as a direct substitute in most amps that can use 6L6GC, KT66, KT88, 350B, and so forth. The 6L6 wasnt released to general sale until late 1935. I thought the EL34 sounded thinner but a little cleaner/clearer on the bottom end. This makes the. You can build a circuit with 6L6 tubes that crunches like an EL34 loaded Marshall if you know what you're doing. TAD has the remakes of the all time favorite 6L6 classics by RCA and GE. Install a quad of 6L6's in place of EL34's, and you've freed up 4 x 0. Jump to Latest Follow 1 - 9 of 9 Posts. Redesigned with versatile, all-new independent dual-concentric controls that allow for gain and volume level matching, this 50-watt tube combo amp boasts three channels for any playing style— crisp c. Bass, Middle, Treble and RAW controls plus BRIGHT switch. 6L6GC STR TUNG-SOL. If amp is cathode biased, changing to 6L6 tubes is a simple matter of changing the connections as noted above, then increasing the size of the cathode resistor by a factor of about 2. The Mesa/Boogie 6L6 STR 440 Duet amplifier tube matched pair gives your amp the best 6L6 performance possible. I have used a couple of amps in the video and made cathode current and power output measurements on three types of tubes 6L6GC, KT88 and EL34. Die Spezifikationen wurden auf die einer 6L6GC angepasst, um eine bessere Leistung und Haltbarkeit zu erzielen. " These tubes are usually associated with American-made amplifiers more so than British. Only 6L6GC is rated for 500V. 01-11-15, 06:22 PM #15. 00 from Mesa), so price is not a. Believe they are Russian made. You may need a an easy circuit mod which allows biasing of all. The 6L6GC tube is a 30W valve. Beam tetrode power tube known for its sweet, warm tone. Warning: 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 amplifier was made in the ‘50s, and was available as a 1×15” combo. But when searching the net I couldn't find anythink about the differences in sound of 6l6 tubes of different brands. I find his tone more defined, more transparent and clearer than those I mention below. 6L6GC/7581A/G. All of the original design features have been precisely adhered to in order to evoke the well-known and legendary sound, a sound that has been penned into. I play lots of DJent style music (think Intervals, Wide Eyes, Periphery, Veil of Maya) and Metalacore (Times of Grace, Killswitch Engage, All That Rem. Revisions to the original metal 6L6 such as increased power handling and glass envelopes yielded new designations such as 6L6G, 6L6GA, 6L6GB and finally 6L6GC (introduced by GE in the late 1950s). 17), and five 12AX7 Tubes in the preamplifier staging (with one as a phase inverter). Less power (18-23 Watts vs 30 Watts) means less clean head room, which means more power section distortion at a given volume. The higher the upper-mid level the 6L6GC is peaking at, the lower the Channel Volume will need to be to dial out grain/fuzz/fizz near 1 kHz. Features sub-chassis mounted Edcor 8 ohm output transformers, variable feedback, 5U4G rectifier, 6SN7 splitter/predriver tubes, and the ability to use all types of 6L6 tubes, except the metal 6L6. Replacement/upgrade for any 6L6 or 5881 type. I learned a few of things from this: Differences between tubes can be largely mitigated by Volume and Send controls. We test each JJ 6L6GC matched pair on our analogue and digital valve testers. The output power from a SE pentode stage will be roughly half the anode dissipation of the valve, so we'll need a valve capable of 20W or more. This amplifier was made in the ‘50s, and was available as a 1×15” combo. The GT-6L6-R provides a solid and consistent performance; plus it is very sturdy and reliable. Negative temperature coefficient thermistor for inrush current limiting for soft turn-on. Some players prefer the extra clarity and punch of the 6L6. As we expect, overall constructions is top notch. The 6L6 wasnt released to general sale until late 1935. New: Used: Tube Type: New: Used: 6L4 : 8. I have a few cosmetic issues to finish, but otherwise the first model is complete (for now). 6L6 specifications & parameters. The Tung-Sol 7581a's do get confused with the Tung-Sol 7581's but difference being the 7581's are 30watt vs the 7581a's being true 35 watt like the old school 7581a's were. It's actually slightly less powerful than the more common and modern 6L6GC. The grid (G2) maximum voltage on a 6L6 is lower than EL34, and the 6L6 is a lower powered older valve than the EL34. The Preferred Series 6L6GC (USD $29. Grudge Match: 6L6 Vs. When you need a tube designed for performance, you'll appreciate what Tung-Sol has brought back to the market. Some people actually prefer these. So I was wondering what "actual" company made these 6l6gc tubes and where were they made? As other contributors have noted, they are rebranded Russian 6n3C (6Pi3S in Roman). 6L6 tube types can vary greatly in size, so check the clearances in your chassis. pdf (876597 bytes) 6L6GC Tung-Sol P 6L6GC. 6L6GC-S-GROOVE TUBES Groove Tubes The GT 6L6GC-S is the Groove Tube valve is very popular with players who require an excellent dynamics with a strong In stock £25. The 6L6GC STR version should be another type of tube,more close to the RCA black plate 6L6 design,with more bass (WGC has more low mid and a creamy sound) and more highs,and more power rating (I think 30 watt VS 20-25 watt of wgc) Svetlana Winged C 6L6GC is much better,great power ,great tone and great reliability. Re: 5881 vs. Perhaps this is a factor in the extremely low noise and lack of microphonics that this tube exhibits. Well I finally finished both my 6L6GC SE project AND the other homebrew 3 way, making my system stereo once more. This results in 5881 tubes having less output power than a 6L6 (how much difference depends on the specific tubes) and also lower clean headroom , meaning a given 5881 may start to distort at a lower level. New: 5E3-6L6 with EL34 and 6384 Capability New P2P Head for use with EL34 / RCA 6L6GC / Bendix 6384 power tubes! This chassis will accept any of these valves and more!. Rondo demos a new 5E3-6L6 amplifier destined for export. It is a good idea to check with an amp tech to make sure your amp can handle the extra draw. They draw more current than a standard 6L6 (1. 99 Spend over $50, Get $20 2-Day Shipping! GT-6L6-R Duets. Open quick view dialog for Groove Tubes Gold Series GT-6L6-GE Matched Power Tubes { } Tung-Sol 6L6GC STR Matched Power Tubes. I had a typo and used a 1k value in my original post for the 6L6 it should have said 390 ohm. 0: 15: A P/P: 270: 270: 72. A "W" in the descriptor, as in 6L6WGB, identifies the tube as designed for mechanically rugged environments, such as military or airborne use. The 6L6 is an octal-base tube, and the original version had a metal envelope. 6L6 Mon, Jul 19, 2010 3:53am bigangryguitar wrote: I have tried just about everything in mine includings kt77's and to me the SED 6l6gc's (winged C's) are by far the best. Sound is lively and. The higher the upper-mid level the 6L6GC is peaking at, the lower the Channel Volume will need to be to dial out grain/fuzz/fizz near 1 kHz. Hey folks, I'm looking at stocking some spare output tubes for my MC-30's while there are still some good options available. 6L6 and EL34 both are different vacuum tubes and were invented for different purposes. 7581a's are just a bigger, cleaner and more dynamic version of the 6L6GC. Winged C 6L6: This is a very nice tube with nice low end, not real deep but much better than any of the sovtek tubes including the now sovtek labeled Svetlana's. The 7027A duplicates Grid #2 on pin 1 and Grid #1 on. This was used for audio amplifiers and modulators for small Amplitude Modulated transmitters. 6A! And with FIVE EXTRA input valves to heat up, you'll need it! In fact, the situation is so ridiculous that Johnson pulls the 5AR4/GZ34 rectifier tube and uses its filament winding to heat one of the input valves as well!!!. 6L6 specifications & parameters. This mod can be done in most any Fender or Marshall type amp, or any amp which utilizes a pentode-style output tube, such as a 6L6, EL34, 6V6, 6550, KT66, KT88, etc. My application is a Jukebox PP amplifier that puts about 400v on the plates and puts out about 25 watts. Metal type 6L6 and glass octal type 6L6-GC are used in the output stage of audio amplifying equipment, especially units designed to have ample reserve of power-delivering ability. This entry was posted in Amp Talk, Blog by Lil Dawg. 2 amps per tube vs. In triode connection the KT88 with a load of 10Kohm anode to anode give an output impedance of only 3ohm so with 10dB of feedback we have a good damping factor near to a solid state amplifier. GT-6L6-S Quartets. The complex midrange and sweet heights are a class of its own. are kt66 and 6L6 tubes interchangable? i was looking at some data sheets, and the pin layout seemed identical, though I may be wrong. Military equipment. That’s an incredible bargain for such a fine tube, so if you can use this 6L6 type tubes I recommend you give them a whirl - you will not be sorry. Tung-Sol saw an opportunity to sell an up-rated tube, 5881, which would live longer in sockets which were killing 6L6. Avoid using older 1950's style 5881,6L6-GB, 6L6-GA, 6L6-G, or metal 6L6/1614/1622, those do not have the requisite plate dissipation rating. You may, however, make a one-time permanent transfer of all of your license rights to the Software to another end user in connection with the transfer of ownership of your Product, provided that: (i) the transfer must include your Product and all of the Software. The original metal version was rated for 19 watts dissipation while the later 6L6GC is usually rated for 30 watts. Probably a cleaner sound. There is a 6P3S and a 63PS-e. When in doubt, you can always use a 6l6GC if an amplifier calls for any of the 6L6 types because the GC can handle the highest voltage. The manual states I can just drop in any pair of 6V6 or 5881/6L6 tubes in there without making any adjustments. Well I finally finished both my 6L6GC SE project AND the other homebrew 3 way, making my system stereo once more. For maximum output, a GZ34 rectifier and 6L6GC output tube are recommended. Per-channel variable wattage. The bottom line is that I'd like people to know what they are getting into when they make that swap. Gold Lion KT66 Russian re-issue of the legendary Genalex. 5: 33,000: 5. Larger plate and improved grid structure, the Electro-Harmonix 6L6GC can handle more power. 6L6 variants The original 6L6 valve was contained within a black metal tube or casing. The solid state rectifier will boost voltages in the amp which will increase. Black Taurus and Hot White Bronco are no-upcharge tolex options. Soft-rated tubes break up easier and have the least headroom, yielding a heavier, harder distortion. Octal power tube (Max Plate Watts = 30W) TAD 6L6GC-STR RCA-Style black-plate. Midi control, full digital programming without midi, & all tube analog tone. The Winged C 6L6GC is considered by many to be the best 6L6 tube that money can buy. Believe they are Russian made. Gain will still be below 1 but a larger signal on the cathodyne grid can pass through the phase inverter to hit the power tube grids harder. Re: Difference between 5881, 6L6B, and 6l6GC. > 6l6 January 27, 2011. Put EL34's in a Fender twin reverb and it still sounds Fender/6l6. Discussion Starter • #1 • Sep 17, 2008. EL34-STR447 Pareja Válvula de potencia Mesa Boogie (ref:1035) € 86,00 € 83,42 ( € 68,94 sin i. 4 volts, that is what I did in my amp and it sounds fine to my ears. 6V6's are just weak in that area. Electro-Harmonix 6L6GC vs. Today, the 6L6GC is one of the most common power tubes used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. com 6L6 vs EL34. The differences become even more noticeable when the tubes are pushed into O/D and distort. The third photo demonstrates testing a new 0A2 regulator tube. Install, either Svetlana 6L6-GC, Tesla/JJ 6L6-GC or good US made 6L6-GC, 7581, or late model 6L6-WGB/5881, and check idle current. The tone is often described as “big” compared to a 6L6. 9 amps of heater current, a KT90. Atualmente estão em produção as versões 6L6GC, pela JJ, Svetlana, Shuguang e Reflector, e a versão 6L6GB, na forma da sua equivalente russa 6P3S produzida pela Reflector. I also think 5881's have less pronounced highs and more rugged, military spec construction. Perhaps this is a factor in the extremely low noise and lack of microphonics that this tube exhibits. Enjoy!! Play in HD for better audio performance!!. Search in titles only Search in Theory & Design only. 2 times the original. testitulokset: Lue arvostelu. In recent years, during which the brand's following in North America has seen the most growth, the uniquely styled Haut-Brion has stood out as the only Shindo amplifier whose vacuum tubes are all contained inside a. 6L6GC types can dissipate 30W and handle plate voltages up to 500V. It is important to note that the volume difference is actually quite minimal. Converting 6l6gc to el34: Edward Solberg : 2 : 1 : 11-11-06 11:09 am: 6L6GC vs 6L6GB in a HD-150 amp: Mike Kaus : 2 : 1 : 12-04-06 06:15 am: Trying to decide on some 6l6GC's: Rob Brotherston : 4 : 1 : 12-14-06 05:01 pm: New octal sockets? Mike Kaus : 4 : 1 : 02-02-07 06:40 pm: Tube preferences these days: Ed Goforth : 2 : 1 : 02-10-07 11:43 pm. 6L6 seem to have a good low end and punch while EL34 has the warmness british tone. What you've discovered is the difference between two families of tube architecture, the Power Pentode (EL34, 6CA7, EL84) vs Beam Tetrode (6V6, 6L6). 5881 vs 6L6GC Valve/Tube. I play lots of DJent style music (think Intervals, Wide Eyes, Periphery, Veil of Maya) and Metalacore (Times of Grace, Killswitch Engage, All That Rem. A Fender amp with 6L6 tubes is widely considered to be the “gold standard” by which we judge clean guitar tone. NOS GE 6L6GC This tube and the old "blackplate" RCA 6L6GC are probably my favorite of the 6L6 tubes for blackface amps. Subbing a 7027 into an amp designed for say a 6L6GC, again pin one should be checked for wiring. ) Comprar 6L6-STR440 Pareja Válvula de potencia Mesa Boogie (ref: 54). It's a *lot* closer to the 7355 than the 6V6 is. This is the same tube Mesa relabel's as their STR-440's. Finally I have settled down on k55\[email protected] 450hz and D220 from 1. Single tubes are $11. currently reading a lot of stuff on these 2 power tubes. Arguably the best sounding 6L6GC. The 6L6 is an octal-base tube, and the original version had a metal envelope. 0 of 5 stars (19 Reviews). Their glass envelopes enhanced radiation cooling of the plate and permitted higher maximum plate dissipation ratings. Heater Basics A valve heater is simply a length of tungsten wire which gets red hot when you shove current through it, so its not much different from a light bulb. The 6L6EH offers tone and performance superior to any other 6L6 or KT66 type. Power tubes are responsible for powering the output stage in your amplifier. So using a KT-66 would be fine, but you would want to use caution running NOS and some CP 5881's in 6L6 / KT-66 amps. Just recently purchased a quad of Tung-Sol 7581a's and I believe it'll be my go to 6L6GC style tube from here on out. It's a very full-sounding tube works really well across the board. Perfect anywhere 5881s, 6L6Gs or EL37s are normally used. Sovtek claims it has 20 percent higher output than their 5881WXT. perycokia el 24/06/2009. Be sure to check out our review of the Tungsol 6L6GC-STR tube. is it ok to chan. Tung-Sol saw an opportunity to sell an up-rated tube, 5881, which would live longer in sockets which were killing 6L6. I thought the EL34 sounded thinner but a little cleaner/clearer on the bottom end. 6L6 seem to have a good low end and punch while EL34 has the warmness british tone. Uses 6V6 0r 6L6 power tubes and 5U4G or GZ34 rectifier to dial in the power and feel for your gig or recording preference. Made in Binghamton, New York, USA. Various brands available. 6L6 / 5881 / KT66 Beam Pwr Tetrode; 6550 / KT88 Beam Pwr Tetrode; 300B Power Triode; Rectifiers. How you operate the tubes (push-pull, push-pull parallel, ultra-linear, class, B+, bias, operating points, etc. by Marc Johnson for TheToneKing. Play as you Pay® on orders $79. Without a thorough knowledge of tube types and their substitution possibilities, you may be over-paying for your new or NOS tubes you employ, or just pick the wrong ones. Sheet steel chassis. Compared to the 5E3, the 5X3 is capable of producing more stout low frequencies, and has a slightly different midrange and treble signature due to the 6L6 tubes and output transformer. Discussion in 'The Tone Zone' started by American Viking, Jan 14, 2011. Revisions to the original metal 6L6 such as increased power handling and glass envelopes yielded new designations such as 6L6G, 6L6GA, 6L6GB and finally 6L6GC (introduced by GE in the late 1950s). General Electric Co (USA) 188. 4 channels w/ independent EQs. Octal, IO) K8A, USA 1935 and Power/Output shown. 75K Plate to plate?. It's brighter and middier than the big bottles and has the vacuum closer to the EL34. 105-130 VAC 50 ~ 60 cycles. Perfect 6L6WGB /5881 tube for Fender amplifiers requiring 5881's or 6L6's. Install, either Svetlana 6L6-GC, Tesla/JJ 6L6-GC or good US made 6L6-GC, 7581, or late model 6L6-WGB/5881, and check idle current. You could compare it to the love child of a Siemens/ RFT EL34 and a GE 6L6. Remarkable bass definition, articulate mids and shimmering highs keep every note amazingly intelligible, with a smooth, creamy character. How is the proper Primary Impedance Determined when designing amps? I mean what data on a tube data sheet would tell you that 4 6L6GC's will sound good with 2K plate to plate, or that 4 EL34's will sound good with 1. If amp is cathode biased, changing to 6L6 tubes is a simple matter of changing the connections as noted above, then increasing the size of the cathode resistor by a factor of about 2. Many tube amps are over powered for the average users volume needs. GE from 1961. A KT66 or 6L6 in a unity-coupled configuration, a la McIntosh, requires slightly more voltage drive than a 300B, but offers comparable damping and lower distortion, and much greater efficiency. You can swap the KT88 output tubes with 6L6, or EL34 / 6CA7. Note: YJS requires at least 5" of clearance and YJShort requires at least 4. The tubes are Ruby (JJ), Tung-Sol, Svetlana (new production), used old stock GE 6L6GC (test strong) and NOS RCA "black plate" 6L6GC. Power tubes are responsible for powering the output stage in your amplifier. So that’s quite a big difference. STR standing for Special Tube Request. 95 from the Tubestore and 42. This is the valve that Groove Tubes have copied with their 6L6GC G. In the summer of 2002 I decided to build a pair of mono block parallel single ended DIY tube amps, using the 807 tube. I had a typo and used a 1k value in my original post for the 6L6 it should have said 390 ohm. The GT-6L6-R provides a solid and consistent performance; plus it is very sturdy and reliable. Perfect anywhere 5881s, 6L6Gs or EL37s are normally used. Gold Lion KT66 Russian re-issue of the legendary Genalex. Coke-Bottle- oder Dom-Gehäuse. After careful research, I choose these 7581A Tung-Sol tubes to replace the Sovtek 6L6GC tubes I had in these amplifiers. So, to unravel this, first let's look at the various types of 6L6 valve. Tung Sol 6L6GC “STR” beam-power tetrode tube. GT-6L6-S Quartets. I have a nice sound going with a pair of SED Black Sable 6550s, but just wondering if what Ive heard is true about the 6L6. So using a KT-66 would be fine, but you would want to use caution running NOS and some CP 5881's in 6L6 / KT-66 amps. Coke-Bottle- oder Dom-Gehäuse. The 6L6GC is a much, bigger, much more balanced tube. however, the 7581A has a 5 watt greater maximum plate rating (35W vs 30W) Fake 12AT7 #1. Give your amp that classic 6L6 amp tone with the Tung-Sol 6L6GC STR power tube!. Perfect replacement for the output valves used in the reissue Marshall JTM-45 head and Bluesbreaker Combo amplifiers. The Ruby Winged =C= 6L6GC is the same as SED 6L6 winged =C=, and the Ruby 6L6GC-CZ is a relabeled JJ. In a guitar amp, this makes for a tone that is more substantial. Shop our selection today!. The classic American amplifiers of the ‘50s and ‘60s inspired us to create the, errrrr, American Classic series. Select Post; Deselect Post; Link to Post; Member. Of course you are welcome to try, you may find your EL34 G2 is already glowing cherry red under full load anyway. This Sovtek 6L6WXT+ is modeled after the vintage RCA 6L6GC "Black plate". After I finished wiring the stereo SE tube amplifier, I fired it up and what a glorious sound! It has better sound than my Push-Pull KT88 commercial amp. Superior power beam tetrode, engineered for demanding high fidelity, reliability and overall warmth. The Tung-Sol name and trademark have been acquired by the New Sensor Corporation. 6L6 vs eL34 - Know Which Vacuum Tube is Perfect for You. Titan: 3-6EU7, 2-12AU7, 6FQ7, 4-6L6, 0A2 (12AU7 splitter, 6FQ7 driver) Mercury: 6EU7 splitter, 6FQ7 driver and 2-6L6 output Titan I, III, V and Medalist: 3-6EU7, 2-12AU7, 6FQ7, 4-6L6, 0A2 (correspond to Epiphone EA-500T) Mercury I, II and Medalist (sloping sides): 2-6EU7, 6C4 and 1/2-6EU7 tremolo, 1/2-6EU7 splitter, 6FQ7 driver and 2-6L6 output. I have SED "winged C" 6L6's and have zero complaints with their performance and presentation, but I'm trying to gain an idea on how the GE 6L6GC or 7581A compares to the SED sonically. There is actually a wide range of valves that fit the bill, but the most common for guitar use are the EL34 (25W), 6L6GC (30W), or a pair of parallel EL84s (24W). I play lots of DJent style music (think Intervals, Wide Eyes, Periphery, Veil of Maya) and Metalacore (Times of Grace, Killswitch Engage, All That Rem. A 50 watt amp with two 6L6 or EL34 tubes, or a 100 watt amp with four 6L6 or EL34s, is a push-pull amp. Footswitch matches chassis. Remarkable bass definition, articulate mids and shimmering highs keep every note amazingly intelligible, with a smooth, creamy character. Tonally, many consider the 6V6GT a little closer to a E34, a nice midrange-rich creamy tone, the bass is looser, the highs less glassy. Re: 6l6GC vs EL34 Tue, Feb 12, 2013 11:35pm JTyson wrote: You should check it no matter what you end up choosing, and you'll need a bias checking device of some kind to do so unless you have probe jacks to go direct with a meter. Rondo demos a new 5E3-6L6 amplifier destined for export. 6L6GC - The standard among 6L6's. You could compare it to the love child of a Siemens/ RFT EL34 and a GE 6L6. Puoi usare tranquillamente le 6L6GC, per esempio, della Svetlana. 4 channels w/ independent EQs. For sale Tung- Sol 5881 / 6l6 4 tubes tested high no gas leaks or shorts. 6L6 tubes have been a mainstay in Fender amplifiers for more than 70 years. 6L6, gemeint sind wohl 6L6GC, sind amerikanische Röhren, die sich zu den europäischen EL34 insofern klanglich unterscheiden, als das sie klangneutraler, runder und basslastiger klingen. 0mA 160H 120H (2. There is a lot of headroom. Grudge Match: 6L6 Vs. The 6550 has a max dissipation rating of 40W, while it's near equivalent the KT88 is rated at 42W. reality is that most current production 6L6's are likely GC speced - but I'm sure not going to read up on the brands to see if someone out there is making a low voltage/watt 6L6. The Tung-Sol legacy continues with the introduction of the new 6L6GC STR. Diese kleinere Dom-6L6 ist (über alles) 10 cm hoch und hat einen größten Kolbendurchmesser von 4,3 cm. JJ 6L6GC - Platinum Matched Item 6L6G JJPL. Various brands available. I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. One is completely loaded with Mesa Branded Tubes (6L6)- the other is a set from Dougs Tubes (6L6) match quad with a mix match going on in the pre-amp section. Vintage JVC VS-5352 Speaker Tweeter. If you are uncertain that you are experienced enough to work on a live high voltage amp, please take your amp to a professional to get it biased. Believe they are Russian made. When you need a tube designed for performance, you'll appreciate what Tung-Sol has brought back to the market. Punchier tighter bass, even midrange, glassy highs. Tube Compliment (4) 12AX7, (2) 6V6GT or (2) 6L6GC, and (1) GZ34. The original 6L6 valve was contained within a black metal tube or casing. 17), and five 12AX7 Tubes in the preamplifier staging (with one as a phase inverter). Power tubes are responsible for powering the output stage in your amplifier. Check out our review: Tung-Sol 7581A Vacuum Tube “7581A gets an A+. The Tung-Sol legacy continues with the introduction of the new 6L6GC STR. I think the EL34 would be good for a metal type chug chug rhythm for 80's metal, but for most other stuff I liked the 6L6 fullness. tubesandmore. pdf (916149 bytes) 6L6GC : General Electric P 6L6GC. Amperex (USA) 111. I am often asked this question, but usually after the purchase of the wrong tester! I will provide some help with this article and limit the techno-babble as much as I can. This was used for audio amplifiers and modulators for small Amplitude Modulated transmitters. Shuguang 6L6GC "Coke Bottle" Featuring the classic "coke bottle" shape and rugged internal design, these premium Shuguang 6L6GC tubes are right at home in virtually any vintage amplifier calling for a 6L6 or KT66 output tube. Made in St. 22 watts (with 6V6 power tubes), 35 watts (with 6L6 power tubes), 40 watts with optional transformers and 6L6 power tubes. " Older 6l6WBT tubes, however, are not recommended because of the higher plate voltage required by the tube. It is important to note that the volume difference is actually quite minimal. Revisions to the original metal 6L6 such as increased power handling and glass envelopes yielded new designations such as 6L6G, 6L6GA, 6L6GB and finally 6L6GC (introduced by GE in the late 1950s). 6L6GC Hi-Fi SE Vacuum Tube Stereo Amplifier. Later the 6L6G had an all glass envelope - this improved the radiation cooling of the anode. The original true Fat Bottle 6CA7 is a Beam Tetrode designed tube like a 6L6GC Beam Tetrode tube is and it sounds some what in between that and a EL34 with slightly less mids but with more compression than a 6L6GC when pushed hard. 6% distortion running in triode, where=as a 6L6-GC runs at about 1. The EL34 power tubes deliver signature harmonic overtones, with more dynamic compression and saturation that evoke a more modern “British” sound, all with the 4 x EL84 vs. Matched sets are matched with the new Maxi Matcher 2. Grudge Match: 6L6 Vs. Remarkable bass definition, articulate mids and shimmering highs keep every note amazingly intelligible, with a smooth, creamy character. The 5E5-A uses a single 5U4G rectifier with a … Continue reading "American Classics 5E5-A Pro". KT66 tubes generally have thicker glass and are wider and taller than 6L6 tubes. Consider these for any 6L6 based amp if you need a lot of headroom. The original metal 6L6 was a typical design for RCA at that time. Uses 6V6 0r 6L6 power tubes and 5U4G or GZ34 rectifier to dial in the power and feel for your gig or recording preference. All the voicing & gain staging switches you need to dial in the exact tone in your head, quickly & easily. I have a 68 Ampeg. Some people actually prefer these. De 1614 en 1622 zijn all-metal "premium" versies van de 6L6, de KT66/7581/CV1075 en 6L6GC uitvoeringen zijn 30 Watt "industrial" versies. The next best sounding one is the Philips/Sylvania 6L6GC STR which was widely used in the 70's and 80's by all the major guitar amp manufacturer's. Output Pentode Quick reference data • Anode current Ia=48mA • Transcoductance S=11,3mA/V. I also think 5881's have less pronounced highs and more rugged, military spec construction.