6l6gc str vs 6l6gc forum. 6L6 STR 445 - These are JJ 6L6GC tubes.

6l6gc str vs 6l6gc forum I bought JJ tubes for the amp, and after mentioning it to a co-worker, he commented on what a high plate voltage that was for a 6L6GC. Vintage Fender 6L6GC tube question. that I purchased from ebay the other day. 99. Thread a bit of info on the difference between a 6L6 and a 6L6GC. A completely different animal than the TAD 6L6GC-STR. Reactions: JPH118 and Mr. 95 each) is an in-house design from www. Edit: Forgot 6L6 GC STR added it and more material at the end with links to GE publications. Headroom would be defined as the amount of input signal they'll take before they clip. By Demondes Started August 30. Oct 31, 2012 #13 ; Wally Telefied. Thread starter Treyphan; Start date Jun 18, 2019; 1; 2; 3; Next. The Tung-Sol legacy continues with the introduction of the new 6L6GC STR. One of the 430's was going bad, blue flame, glowing etc. Replies 24 Views 3K. most programming languages convert strings or characters to integers. Members; my favorite 6L6 in the 5150 is the TAD's. So far, tubes that sound great in the Mark V are the SED =C= 6L6GC, SED =C= EL34, TAD6L6GC-STR, Gold Lion KT77. Regards, Gordon. The ultimate in musical tone and smooth overdrive, the STR delivers the sound that established Tung-Sol as the benchmark of quality. Start new topic; Recommended Posts. The Ruby's sounded stuffy in comparison - I think most of the Ruby love is because it's the "flavor of the month". I believe that the Sylvania STR-415 and GE 6L6GC(made in Owensboro,KY plant)were built to near 7581A standards. 2 DC (screen) voltage 500 V Grid no. Along with Mullard 6L6GC, these new generation 6L6GC tubes are packaged in a compact form. The 6L6GC can be used with greater plate dissipation and plate voltage - but if you plug a 6L6GC in a circuit designed for a 6L6 it will not yield any more output. I have a very small combo self made, with Chinese tubes, one 6L6 and two ECC83, 8" Jensen and solid wood case open backside. 6L6GC STR TUNG-SOL. D winged, they are pretty nice too. Same tube as the Ruby 6L6GC-MSTR ($20 each No love for EH 6L6 tubes, just re-labeled Sovteck, and I usually don't use them. Learn more I only use the TAD 6L6GC-STR or Preferred Series 6L6 GC (basically the same thing) in my vintage Marks because they are fairly similar to the Sylvania & can take the high plate voltage. 2. By colejustesen April 22, 2008 in Amps. I think the 5881 may match one of the lower power versions of the 6L6. So that’s quite a big difference. This tube is similar to the Tung Sol 7581A. The Tung Sol 6L6GC-STR starts to change character at this point. 99 and other 6L6's priced $58. =C= 6L6GC Mesa STR440 vs. EQ in the loop. 1 of 2 Go to page Both tubes have very similar specs and appear to be interchangeable with AudioKarma Audio Forums. With 6L6 types there is about a 1/2" space between tubes and with EL34 What is the biggest difference besides price with the Tad vs the JJ. You should be able to bias a little hotter than 35mA w/ 6L6s, but I don't think that has anything to do with the issue you're describing. The difference in sound quality is quite astounding - so much so that it sounds like a completely different (and much better) amplifier. Must be some exhilarating, life-altering work lol, peace. Get to Grid no. I recently bought a quad of T-S 6L6GC-STR on the recommendation of Jim McShane, and I am really impressed with them. I really like the short bottle TAD 6L6WGC in tweed amps. Pity. So, I took them to the band's studio and put them in just before rehearsal. Very good sound, hard to describe but they sounded bigger, not louder or heavier, but more wide open. Then i tried JJ / Tesla 6L6GC and i immediately liked them over EL34's. They're far too noisy and I just don’t like their tone. Added a Zener string (series 5 First i tried Ruby Tubes EL34B-STR (Shuguang EL34-B). I also picked up a NOS pair of RCA blackplates for quite a bit more. STR?). Amplifiers . classic . This tube sounds clear and warm. The Tung-Sol name and trademark have been acquired by the New Sensor Tung Sol 7581 also sound quite similar. The Tung-Sol 6L6GC-STR is a massive tube option with thick mids. Tung-Sol 6L6GC-STR . Add to list. Woodlumn; Nov 15, 2024; Mark Series; Replies 1 Views 230. Good raunchy sound. Mark V on 90W, ch 3 Mk IV mode. Seven String Forum; Marshall Forum; Drum Forum; Everything SG; And the regular 6L6GC would be like the tall bottle. Built to the same "Special Tube Request" specs of leading amplifier manufacturers of the 1960s, the 6L6GC STR is a AudioKarma Audio Forums. The 7581a shuld be here within a week. Re: 6L6GC vs 6L6WGB "It depends". Some diagrams clearly show 3 grids, others only 2. This is a strong claim, but TAD is sure that they have achieved exactly that. The 6L6GC STR (Special Tube Request) delivers the musical tone and smooth overdrive that have made Tung-Sol the benchmark for quality; Built to the same specifications demanded by leading amplifier manufacturers of the 1960s, the 6L6GC STR is a robust and reliable power tube for use in the most demanding guitar amplifier circuits One of the best know is the old Sylvania 6L6 tall bottles with the designation STR387. JJ 6L6GC in 5150/6505?? By doomsdaymachine October 12, 2011 in Amps. Dusty Chalk I did some testing awhile back between Tung Sol 6L6GC, Chinese EL34BSTR and JJ E34L. Thread starter highwaycruiser; Start date Dec 21, 2011; This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others. For decades, people have been discussing 6L6GC tubes while simply referring to them as 6L6. This is a performance-oriented 6L6GC power tube solidly built for catering to the Thread starter Markedman; Start date Jan 28, 2017; Help Support The Boogie Board: I had a Fender gtr amp that used 6L6GC output tubes , I wanted lower power and a smoother breakup , I got Tellow Jacket tube convertors for the EL84 ! tubes about 30 watts vs 50-60 watts , for a gtr amp this was a great setup , heres a good artical on the 6L6 vs El34 tubes. It seems any tube labelled a 6L6GC should be constructed in a similar way. The two I took these out of my old Mesa triple rectifier, it had 4 of these and 2 orginal str 430's in it. 5. Both excellent and recommended. 6CA7. The 2 Channel Rectos were build around these tubes. 6L6 power amp tubes EL34 vs. 2 DC (screen) dissipation 5 W Bulb temperature (surface hottest point) 250° C Typical Operation AF Power Amplifier, Class A1 (single tube) Plate Voltage 350 V Grid 2 Screen Voltage 250 V Pair of power amp tubes Matched pair 6L6GC STR, Robust and reliable power tube for use in the most demanding guitar amplifier circuits, The 6L6GC STR (Special Tube Request) delivers a musical sound and "smooth" overdrive, that made Tung-Sol the While in general the 6L6GC and the EL34 can be interchanged there are are some conditions that have to be checked. I have both and like both. The 5881 tubes are rated for 23 watts maximum, while most 6L6 variations can handle 25. Steppin' Wolfe. The break up an the clean channel is worth it alone but these buggers really rock on the lead channel too. However the amp works with the GCs and I was wonder if there would be any differences between the GBs 5881s vs the GC as far as performances and sound. Using 6L6GC tubes in an amplifier that was designed for the earlier versions of 6L6 will not hurt anything if you can adjust the bias currents. That’s not a bad thing and shows that the company is really working on developing unique products. com - 6L6 Tube Review T The output transformer impedance ratio is the biggest drawback. It has eight pins arranged around the circumference of a circle with a diameter of about 11/16 of an inch. I really like the less volume before breakup compared to the Jan Philips 7581a'S I was running. I needed to replace tubes 2 and 3 on my DR. rusty old memory) 6L6GC is very good tube if you can find some somewhere. Fret. The Amps. Hard to tell which it is. I doubt that there is a significant difference here. com. The 6L6GC tubes we carry work great in any 6L6 tube amps. The classic Fender tube, big bottom and top, kind of neutral mids. 1 of 3 Go to page. Forums ; Perform ; Amps ; EL34 vs. Go. I used the Weber Bias 6L6GCM-STR REDBASE TAD PREMIUM Selected is the best 6L6 tube. Rich mid fullness. A completely different plate structure than their other 6L6. I have both the Tung-Sol 5881 and the Tung-Sol 6L6GC STR and they are totally different. That said, what are the best current production 6L6GC tubes. EL34 6L6GC vs. The sound is all there. Oct 12, 2024 #2 6P3S-E is tolerant closer to a 6L6GB than GC if I remember Comparison of the two original TAD 6L6-tubes with a jazzy sound done by Markus Fleischer played through our handwired TAD Blackface 45 Reverb amp. Really nice. Our Product Research Team. Then, I continued to read on the forum about so many people loving 34's. S. Thanks. After that i tried TAD 6L6GC-STR and that was the end of my search. It does not sound as big as the Sylvania --- but has a similar timbre. The base looks like the Sovtek 6L6WXT, Electro Harmonix 6L6GC. bandit2013 Well-known member Boogie Supporter. colejustesen Not sure any CP 6L6's are going to sound exactly like the winged C tubes. 6L6 power amp tubes. Search forums. Prev. 6L6GC types can dissipate 30W and handle plate voltages up to 500V. voltage divider for screens didn't work out (maybe if I had the right resistors?). I go to 6V6 next as a little EL 34 tube. 6L6GC, 7581. What does that mean? The octal part tells us what kind of socket the tube plugs into. I think the STR is a modern thing, I don't remember seeing it until the last 15-20 years anyway. 6L6 power tubes, much tighter more thump less mid range & buzzyness IMO. The Preferred Series is intended to improve on the TAD GC. In a high fidelity amplifier design the circuits Today I replaced old GE 6l6gc tubes (in good working condition, though) with new matched Tung Sol 6l6gc str. Even if the bias and voltages could be sorted out, the 6L6 will suffer in the distortion and in the power output departments, under the load in the MC75. This tube is similar to the Mullard or Tung Sol 6L6GC-STR. Thread starter highwaycruiser; Winged C are the closest thing you can get to the old Sylvania STR's. New posts Search forums. I just a/b’d these tubes in my Mesa Boogie 5:50+ Express. 7027, 5881, are all 6L6 family tubes with the following official ratings and similar if not identical transfer characteristics: The 5881 doesn't seem to have quite as much sparkle and top and bottom as a good example of a 6L6 tube. Then tried JJ 803s (long plate). If you mean the amount of power they'll put out - the original GB (the 'W' in this case indicated the small bottle) spec was 23W. Sep 16, 2024. That said, what are the best current production Re: Tungsol 6L6GC STR Mesa's fixed-bias does allow for some range within it's window. Posted October 12, 2011. The 6L6GC-STR has ruggedized construction making it especially suitable for use in musical instrument amplifiers. 6l6GC / 7581A Schematic Critique I used some peramiters from Keven Ward's 6L6GC amp schematic and posts and papers from DaveG and many others here as well as web sites like valve wizard. As far as i can see the only difference between them is the The MESA® 6L6 STR-448 is a premium grade 6L6 with a balanced voice and plenty of punch and headroom. I recommend the Slovakian 6L6's- these tubes are made in the former Telsa factory and are marketed as the Rudy 6L6GC-CZ and the Groove Tubes 6L6S. There is a key between pins 1 and 8 to ensure that the tube can only be plugged in one way. Both max at 30watts. one day I ran across a web site that was selling limited amounts of tubes. Run all 12AX7's/ECC83. If there were no more STR-415's in the world, or for that matter STR-416's (EL-34's) I'd be using the Winged C 6L6's and EL34's Btw I have had the same experience with KCA Tubes, he (Mike) is very smug and can be pretty even condescending. New Forum Member - Legacy Now the important differences between the 6L6GC tube and the 5881 tube is plate voltages and power dissipation. 6V6s are kinda scrappy sounding with more mids than a 6L6, in fact 6V6s sound more simliar to EL34s to 6L6s. May 3, 2014 That looks a lot like a 6L6GC STR-387 Sylvania, in fact. They look like vintage STR-420. The Preferred Series 6L6-GC (USD $29. The EL34 draws a higher heater current(1. Seven String Forum I went into a local music store yesterday to get some Boogie 6L6's and noticed there were some 6L6's priced $29. The TAD 6L6GC-STR is matched for plate current and transconductance and has the look of an old Sylvania. 6L6 GC STR440 or STR 430 the mesa str 430's will work. R. Physically, this Mullard 6L6GC tube is a kissing cousin the Tung-Sol 6L6GC-STR. Next Last. You may want to read that. Philips ECG STR-318 (STR stands for Special Tube Request and please note that I am not crash hot the 318 number I am just quoting from my ROM. The plate voltage averages 472. It could be the difference in the tube impedance more than anything. It is not power sag as that would have been evident. Amplifier Discussion Forums. If you want to hear a real tone difference you'll have to go with a top quality Tube. Mark II Tube Questions 6L6 STR 420. Biggest difference in my opinion between the TS 7581A and TS 6L6GC-STR is not really better bass (although it might be slightly deeper, tighter), but rather an overall more refined top to bottom presentation. Mesa/Boogie 6L6GC power tube comparison. EMG 81X, drop-C. Some tube data sheets state it is a beam tetrode and others state it is a pentode. Forums ; Perform ; Amps ; Ruby 6L6GC-M-STR or Sovtek 6L6WXT+ Ruby 6L6GC-M-STR or Sovtek 6L6WXT+ By Hellaboogie December 30, 2012 in Amps. Outer 2 STR-445 I think the biggest difference is between the first two. If you take an amplifier designed for 6L6's you can run any type (eg, the Mcintosh Mc30). pretty sick of the stock tubes. Of course, these are just general observations and there's more to it than just the tubes. 6L6s we're all familiar with. 6L6GB vs. Since it was rated for 23W dissipation instead of 19 for the 6L6, it did get used in hi-fi and guitar amps. Preamp Tubes: Tried the new TungSol, and compared to the stock Groove Tubes, they had a brighter sound, a hair less gain. Re: Tungsol 6L6GC STR Obviously having adjustable bias is ultimately more flexible, but one neat thing about their fixed system is that by simply choosing the pairs with correct plate-voltage it allows many different tube-types to be slapped right in and tried without having to re-bias for every change. Badass tubes. Tung-Sol 6L6 STR New Production You can get these for 40 for a Svetlana 6L6GC vs SED Winged C. Once exclusive only to TAD (Tube Amp Doctor) we contracted the Shuguang factory in China to produce a massive lot of these tubes to our Little of both. 6L6WGC sounds more hi-fi, brighter, almost acoustic until driven. which one of these would you recommend just to get a huge crunch. 6L6 vs. Our top selling go-to 6L6GC tube is TungSol 6L6GC-STR. Members; TUNG-SOL 6L6GC- The 6L6GC-STR is a beam-power tetrode primarily designed for use in audio-frequency power amplifier applications. I know you will find confusing reports about it on the web, some claim the EH 6L6GC is an upgrade of a Sovtek 6L6WXT+, but that is inaccurate, since the two tubes are the same except the relabeled logo. Apr 4, 2022 #8 silver_mica said: Seven String Forum; Gretsch-Talk; Squier-Talk Forum; Marshall Forum; Drum Forum; Everything SG; Epiphone Talk; Forums ; Perform ; Amps ; Ruby 6L6GCMSTR vs. They are a short bottle tube and fit like the stock 5881's. And I put the old GE tubes back. The cleans on my An original 6L6G cannot necessarily be used in a circuit designed for 6L6GC; the 6L6GC has higher ratings. 6L6GC? 07-14-2011, 09:04 PM. Thread . And they sound killer. I ascribe much of this improvement in sound quality to the JJ 6L6GC tubes - clean, crystal highs that makes my toes curl! I am working on HK250 amp that has 4 6L6GC tubes in it already but the amp requires GBs instead. I was very surprised how warm they sounded with great bass and overall detail. I have collected a number of those over the years IMHO, it's kind of like *THE* 6L6GC Regards, Gordon. That said, I've had newer-production 6L6GC's draw more current than my old 6L6's, so the bias will need to be checked. This article was Written By. The 5881s break up sooner, have less power, less headroom I really like the 5881 set better the 6L6 are louder and tighter. Their color-code system is setup from hot to cold but you can combine pairs of any I know the general consensus is that NOS RCA Black plate 6L6GS's are considered the best, but out of the new production tubes, what is the best? I currently have The 6L6GC is rated at 30 watts plate dissipation and 450 -500 plate volts. Forums. With the band, you lose the ability to hear some of the 6l6's spread (higher highs, lower lows). There is even a power drop with the TC100 but not as dramatic as it is with the TC50. So I ordered a new set of 6L6's for it, took the newer looking 454's out and stuck them in my Peavey Triplexxx head, and it sounds 10 times better than with the Ruby 6L6GC's The TAD 6L6GC-STR is matched for plate current and transconductance and has the look of an old Sylvania. Went back and fourth with the 88’s and decided I was liking the sound of the 6L6GC This 6L6 tube is a new version of the popular TAD 6L6GC-STR you might already know. 6L6GC. The small form factor Amplifier Discussion Forums. Forums; Unread; app_sign_in; To my ears, back in my Music Man amp days, 6CA7's are somewhere in between 6L6's & El34's but sounded closer to 6L6's to me. I've used the 6P3S-E in the silverface Bandmaster head unit and blackface Pro Reverb combo. doomsdaymachine. highwaycruiser Tele-Meister. Base, internals, micas and spring clips are virtually identical. Members; doomsdaymachine. Thread starter coyoteblue; Start date Mar 5, 2005; This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others. JJ 6L6GC vs. The main difference between the 5881 and 6L6 vacuum tubes is the power output and rating. 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. 0. Reactions: Darkstar2 and rarebitusa. The kit info said they came with the Winged C's 6L6's but Moss told me he has been leaning towards these for the 6L6 apps. Almost any older production 6L6GC-RCA, GE, Phillips is going to sound good and there were a LOT of them made over the years. 9A) and the transformer rating needs to be capable of the extra load. if your amp takes 6L6gc's, any mesa 6L6 will work. I really like the mids of the EL34 tubes when it comes to the Vendetta. In order to make the Tung-Sol's work, I pretty much came to the conclusion I would have to put some really mellow & warm caps in the Both of these make multiple variants of the 6L6 tube types. Similar tubes, and pin compatible. They sounded fantastic, but I knew the amp originally had the RCA 6l6 black plates. 6L6GC vs. We joined best of both worlds! Silky top end, combined with deep bass response and lots of headroom make this tube a living classic. But I have a lots of NOS RCA's so I kind of like using them. They had a small structure for durability. Gold Supporting Member. It was a UP-rated, DOWN-sized 6L6 with rugged construction for the military. Thread starter . New posts New profile posts Latest activity. IMHO-if your amps can run either run Tung Sol 7581A, or Gold Lion KT66-these are most likely going to sound better than other tubes in this lineage, new production or NOS. Further, some Maybe try to find some Mesa Str 420 (grey code if possible). Difference between 6L6 and 6L6GC Difference between 6L6 and 6L6GC. Still need to test the bias on the Mark V. Just be forewarned the 7581A is a very dynamic tube-it's not bright, or harsh, but dynamic, top to bottom. A lot of people like these for various uses. 6L6GT or 6L6GC. Make sure they are not Sovtek KT66's, those are really 6L6 WXT+ guts in a big bottle. Thread starter Dusty Chalk; Start date Nov 1, 2015; 1; 2; Next. Re: EL34 or KT88 Vs 6L6GC (compare them) I know i prefer 6L6s over el34's, when i had modded marshalls & carvins & stuff that was always the first thing done to them. discussion. Aug 18, 2010 Seven String Forum; Marshall Forum; Drum Forum; Everything SG; TAD 6L6GC-STR Moss was kind enough to include these tubes in my D'Lite 44 kit. Very similar plate design. These offer a very different sound than the others on our list. By Bronal February 18, 2009 in Stereo Amplifiers & Pre-Amps Share Tube Amp Doctor EL34-STR REDBASE Valves/Tubes. You can easily tell them apart: true 6L6 are metal jacketed tubes, and look quite I decided to bite the bullet and order two matched pairs of the increasingly rare & expensive NOS GE 6L6GC's for my vintage MC30 monaural amps, so I could compare the fresh new GE's to the new production Tung-Sol I'm very aware of the RCA 6L6GC black plates, GE's, and Winged C's being some of the best of this tube, but all of those are incredibly scarce, if even available anywhere. The clever folks at New Sensor must have been changing the coatings and materials while sticking with the established stamping and assembly. Sources one of the JTM 45 forums and Lord Valve. It is a newer, revised version of the TAD 6L6 GC-STR (I reviewed the WGC, a slightly different tube). The Russian-made Tung-Sol 6L6GC STR beam tetrode carries on the Tung-Sol heritage embodying the rich vintage tone coupled with smooth overdrive. Thread starter domct203; Start date May 27, 2007; Help Support The Boogie Board: Mesa STR440 vs. I'm going to avoid the NOS/used-but-still-spiffy route and get something currently in production. The 5881 valve is a 23W valve. mroboto Super Member. Joined Jan 27, 2011 I use Tung-Sol 7581As in the push pull class A amp I just finished building, and I do like the 7581A's very much. Using the old school U. This TAD 6L6GC-STR combines the famous reliability of the american made Philips/Sylvania STR series (also known as MESA 6L6GC-STR415) with the black-plate system of the highly regarded vintage RCA 6L6GC tubes. If it is too hot, the tubes will not sound so great. E. To start viewing messages, select the forum that you want to visit from the selection below. JJ 6L6GC in 5150/6505?? Ruby 6L6GCMSTR vs. Here's list of mfg for Mesa-Boogie tubes: Mesa STR-387 = Sylvania tall boys 6L6GC Mesa STR-415 = Sylvania 6L6GC/7581A Mesa STR-420 = Shuguang 6L6GC Mesa STR-425 = Sovtek 5881/6L6WGC wafer-bottom (Russian) Mesa STR-430 = Sovtek 6L6WXT+ / Electro-Harmonix 6L6GC Mesa Hey folks, I'm looking at stocking some spare output tubes for my MC-30's while there are still some good options available. The 6L6 is not correct for some amps in place of a 6L6GC. I'm very aware of the RCA 6L6GC black plates, GE's, and Winged C's being some of the best of this tube, but all of those are incredibly scarce, if even available anywhere. Consider these 6L6 tubes as an excellent choice for any type of music, delivering crystal cleans and smooth breakup with plenty of punch. Menu Log in Register Mesa EL-34 STR447 stock tube, what color ? there is also the Mesa NOS Siemens EL-34 STR450, 6L6 STR 440 is one but there is also the 5881 STR425 and last but not least AudioKarma Audio Forums. The Tung-sol 6L6GC-STR tube is a true 6L6GC vacuum tube that is rated for plate voltage up to 500V and up to 30 watts of power. I've notice 2 different 6l6 tubes, the STR 420 & 440. You would assume they would sound identical, but they don’t. Thread starter Tube Sound; Start date May 3, 2014; Tube Sound Super Member. My standard of comparison for the 6L6GC is the RCA black plate. It could be due to difference in bias. 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. For those of you interested in hearing the difference between EL34 and 6L6 tubes in the TC50, check out the video in the link below. In 6V6's the 6V6G, 6V6, 6V6 GT, and 6V6GTA will all handle the same plate voltages and dissipate the same plate wattage. It does, 6l6 will have more headroom vs el34 and have a grittier distortion typically. In Stock! $ 85. Other iterations were just 6L6 (no additional) and 6L6B. Thread starter LPSpinner; Start date Sep 17, 2022; 1; 2; Next. 6L6WGB vs. Not bad in the JP2C but low end is not as aggressive as the STR440. The 5881 is a 25 watt tube (plate dissipation) and 6l6GC is a 30W plate dissipation tube. I‘ve found out, that bias makes a lot of difference in a Recto, and grey codes bring it up a bit. Would probably match up well with HRW’ I picked up a matched pair of "good-testing" GE 6L6GC from Brent Jessee recently for $90. Would you advise for or against JJ 6L6GC Tung Sol 6L6GC STR or AudioKarma Audio Forums. AS long as it's biased right, it will be fine with 6L6GC and probably have a bit more power and headroom. 3 1/4 in. Tube Audio . The GC spec is 30W. Tung-Sol 6L6GC "STR" Platinum Matched Duet Power Tubes. b00g13mk2B. I think the 430's are better tubes than 440's but I have no experience Mesa STR-440 6L6GC (Shuguang) ($60 per pair): Very nice sounding tube - well balanced, big fat low end (arguably the largest of any 6L6GC I've tried). 6L6 and EL34. Posted there was a listing for five RCA 6l6 black plates. If you can find Svetlana KT66's ( Groove Tubes used to relabel them as GT KT66-HP, but they no longer make them) 3. They, too, are also very quiet and microphonic-free. For hard rock tones I prefer the JJ's 6L6GC's or better yet KT77's or SED 6L6GC's, but the TADs are good sounding tubes especially for clean tones. Joined Mar 17, 2003 Posts 45,671 Seven String Forum; Marshall Forum; Drum Forum; Everything SG; Forums. Seven String Forum; Gretsch-Talk; Squier-Talk Forum; Marshall Forum; I love the 454s in my Rect-o-verb - huge difference from the stock 430s. 9 oxide-coated, umpotentlal ±200 Old thread. The 6L6GC came later with a 30W dissipation rating, and pretty much was the tube to choose from that point on. Sounds a lot like a quality 5881, warmer, darker. dlc1953. SED Winged =C= (Mesa STR-454) were popular for a long time, but SED priced Forums. Ad Free Member. 40. I've used KT-66's for a long time, so long I've forgotten how 6L6's sound 1. Racerxrated Well-known member. Some I'm considering are the Tung-Sol 6L6GC-STR, the Svetlana 6L6GC, and possibly the TAD 6L6GC. max 6. Has anyone compared the several T-S 6L6 variants? I have read favorable comments about each of them but nothing comparing them. Anyway here’s the difference between the two tubes; the STR 387 is spec’d as 6L6 C tube which has the power output of 35 watts and the STR 415 is spec’d to a 7581a tube of which it has a slightly lower headroom at 30 watts power output. This includes metal 6L6 and 1614*, 6L6G, 6L6GA, 6L6GAY, 6L6GB, 6L6GC, 5881, 7581, 5932/6L6WGA as well as Russian 6P3SE & 6P3S. Originally 5881 was a The difference in sound quality is quite astounding - so much so that it sounds like a completely different (and much better) amplifier. Luke The 6L6GC has max plate dissipation 30 Watts, max 500V; and max screen dissipation 5 Watt, max 450V Some guitar amplifiers do abuse the output tubes. 1 of 2 Go to page. Advanced Search; Forums; Blogs; Articles; 6AR6WA v. even without an intended conversion, if you compare two different characters with a relational operator like , the computer automatically understands that as a comparison between their ASCII codes (ex: B > A will return true) So here's my question the amp is built for 6L6GT/5881 tubes, will 6L6GC Winged C's work in this amp? Now before anyone says "they're the same, GT just means Groove Tube", I already know better. In those amps, the sound is gray plate Sylvania 6L6GC/STR-387. Search. I know the GC is higher volts (460) and the GBs are around 360. Be sure to check out our review of the Tungsol 6L6GC-STR power tube. So the 6L6GC will give I've had very good luck, and tone, using the Tung Sol 6L6GC-STR. Sorry about that as I wasn’t being specific as I assumed you knew the difference between STR 415 and STR 387 tubes. The Chinese seem to be making a better 6L6 than the Russian's these days and I've never once heard anyone rave over JJ's 6L6. 6V6 5881s were a military 6L6. Keep bias generally in mind, higher bias tightens the bottom end and bring the feeling of a more aggressiv (or saturated) distortion. 3 3/4 in. 6L6 on the other hand is a more robust design. STR443 alternative to the STR440 Chinese Shuguang tube. 6L6GC Basics. But you should not go the other way and use a 6L6, 6L6G, 6L6GA, or 6L6GB to replace a 6L6 GC. Sep 13, 2016 #21 psychodave":9h6c2g6e said: FourT6and2":9h6c2g6e said: Ok so I put some of those STR I took an educated guess and biased them at . 6L6GC can replace any other 6L6 or 5881 type tubes. I do like Ruby 6L6GCMSTR in my amps. Next The versions that spring to mind are 6L6GC, 6L6G, The GC are big bottle 6L6's and put out ~5 more watts than the WGB which are small bottle and put out less watts. Ka-ching- in the mix of a band, the 34's rocked. I don't think this issue is related to 6L6 vs. They have no difference in output than a 6L6GC in the same circuit. Posted Comparison of the two original TAD 6L6-tubes with a bluesy sound done by Benjamin Geyer, played through our handwired TAD Tweed Bass Four-Ten amp. Jun 3, 2008 #1 I got the new JJ 6L6GC tube to put in the EVH 5150 III. Was the STR 387 made on request from Fender, and the STR 415 made on request from Mesa? How about the TAD tubes compaired with NOS tubes, like the Sylvania STR 387 or the JAN Phillips 7581? I bought some NOS 7581 to my Mesa, and was told that it was the military grade version of the STR 387. By 44caliberKid February 23, 6L6GC and EL34 are both relatively the same output, you can push the EL34 for more with higher plate voltages with the right amp design, but roughly you are looking at 25-30 watts max from each. So I took a look at the JJ datasheet for their 6L6GC's, and the maximum plate voltage listed for pentode operation is 500V! Is just seems to be cutting it a bit close. id like to try something different. In terms of sound, the TAD 6L6GCM-STR REDBASE produces the powerful but always defined bass Music Electronics Forum. All current mfg 6L6 types should also work although due to conflict in Ukraine, new Russian tubes may be difficult to get and will probably be pricey. Presence without airness. Shuguang made. What's new. www. Then I saw the second tube from right glowing, causing loud speaker hum. I think these are actually a variant of the Russian 3PS tube. Reactions: bandit2013. And if they were designed for 6L6GC, then use 6L6GC. 6P3S-E vs. EL34. 1 (control) voltage - 100 V DC cathode current 180 mA Plate dissipation 30 W Grid no. Whats the difference,Also, do you guys recommend anywhere in the UK to buy from? Any info on pre amp tubes would be helpful too. It's entirely possibly you'll destroy your 6L6Gs (specifically, the TAD's website and JerryP suggests the TAD 6L6WGC-STR but Doug at Doug's tubes suggests the 6L6GC-STR. It is a shame that they were not the stock tubes - it would have given the amp and the Single Rec an even better reputation. 20 to 30 watts 6V6 is my choice, Small Class A at 5 to 10 watts up to say 15 watts two EL 84 tubes I like. Just went to the store and bought a matched set of 6L6 GC STR440. Fat attack-no splat. But I do not go directly to 6L6 or 5791 after EL 34 , Vintage Mullard, RFT, Amperex, Telefunken and Vintage Tesla. The new "Tungsol" 6L6GC-STR, however, looks VERY much like a short bottle RCA black plate (graphited plates The 7581 is mil spec of the 6L6GC. style 6L6 plate design and a shiny black plate material they look like American manufactured stock. These are short bottles just like the American 6L6WGC but they chose to use a proprietary plate structure. 6L6 STR 445 - These are JJ 6L6GC tubes. 1; 2; First Prev 2 of 2 Go to page. TAD 6L6GC. They sounded better than the stock Sovteks. 5A vs. Posted April 22, 2008. The result is not unpleasing and they are rated for more output than a 5881 or 6L6WGC so by all means experiment. The tube store has a review on the TAD short and Tall 6L6. -----Blonde Tremolux with GE 6L6GC/7581A tan based. Big Bottom. The Workbench . Anybody have much experience with these? This is my first 6L6 amp so I am drawing on zero exposure to this or any brand of 6L6 tubes. 99 (or so) Forums. The 430's are the Sovteks. New member. Guitars and Amplifiers. [john petrucci live at budokan is one of my favorites] with a Re: 5881 vs. Think its time to change the tubes in my Mesa DR. They can handle solid plate voltages and are very well constructed. The TAD is very percussive or punchy if you prefer. The The result was there was too much emphasis on surface noise and sibilance with the Tung-Sol 6L6GC STR, except on those few extremely well recorded LP's, to make listening to music as rewarding as I know it can be. However, there is a notable difference when used in the Mark V. New Enjoy moderating a useless unofficial Mesa Boogie forum that asks for donations and like 20 people are active on. Markings are in Blue colour on the envelope. Tubes . Mesa currently has the following types: 6L6 STR 443 - These are the same as the Sovtek 6L6WXT and Electro Harmonix 6L6GC. BIAS - 6L6GC vs. If all goes well tomorrow I should be in the market for a quad of 6L6GC tubes. Thread starter sgtbaker; Start date Jun 30, 2007; Help Support The Boogie Board: 6L6GC STR-448, 445, 443, and 441 DECEMBER; Aug 23, 2024; Tubes; 2. And the moment they go Amplifier Discussion Forums. Learn more Some recent developments in both types--the new "Tungsol" KT66 appears to be a (decent) Russian 6L6GC repackaged in bigger glass w/metal base, and not a true kinkless tetrode design. KT66 vs 6L6GC for Quad II Classics. Str 441 6L6 tung sol I said I took the str 441 6L6GC out of the Mark V 90 that came stock, and put in the str448 nos EL34's that I got on eBay in the Mark V 90. Tremendous harmonic content and an overall depth in sound make these Winged “C” / SED 6L6GC tubes another excellent choice for the purist. The TAD 6L6GC-STR are a copy of the old Sylvania's and sound good. It actually has a higher plate dissipation rating, 35 watts vs 30 for the 6L6GC. I'm no expert but based on what I've read this is what I think happened. This is one of the few tubes I’ve tested where I would start at 18 watts idle (60%) and then slightly adjust up and down to find the spot your ears like best. 6L6GC - direct substitute? Thread starter BmWr75; Start date Oct 12, 2024 My specific amps are Allen 20 monoblocks that have the Kegger gain reduction mod. The versions that spring to mind are 6L6GC, 6L6G, 6L6GC-STR, and now 7581a. Reactions: dlc1953. The tweed bassman 5F6A is a common example of an amp "designed for 5881s" that folks routinely run 6L6s in. Bottom end is rock solid. All sounded good. It apears that the philips are indeed the same as the 415 str, military spec, and dual halo getters Does anyone know the brand and model of the Mesa 6L6 str 441 as well as the other Mesa 6L6 offerings (6L6 str 440, 6L6 str 445, and 5881 str 425)? Have any Forums. Not the real thing. Also the suppressor grid,pin 1,has to be connected to the cathode,pin 8,for the EL34. TAD 6L6WGC-STR Brighter than TAD 6L6GC-STR Tonally close to GE “black-plate” 6L6 at 55% bias setting running @ 17W idle Tung-sol 6L6GC-STR Running above 70% bias causes tube to lose definition Idle settings between 15 and 20W (50 – 60%) provide clean & warm sound Overdrives nicely Requires bias experimentation Tung-sol 6L6G Specialty tube Just bourgt a pair of green labeld philips 7581A 6l6 nos tubes and will try and find the sylvania 6ca7 fatboys. Description Specs Rated 5/5 Reviews Back to navigation. These tubes have a lot of headroom and can really drive an amplifier hard. The short bottle is a little more compressed sounding. S/NC KEY 7 AC STR T 12 1 3/8 in. KT77 vs. The 7581A maxes at 35 watts. Tung-Sol 6L6GC-STR. Qty: Add to Cart. Tubes. Dec 21, 2011 #1 ; H. These both can handle a lot of plate voltage. After a few weeks having a new set of Chinese 6L6's in my Mark IV I have to swap them out. Thread starter FourT6and2; Start date Sep 8, 2016; Prev. Nov 27, 2024. At 40 watts I like 6L6 tubes. 6L6 STR-415 vs STR-387. Rig-Talk Discussions. . Thread starter amiller; Start date Jun 3, 2008; amiller. Hope that helps. I'm trying to understand the 6L6GC tube structure and power ratings. Tech experts from Seymour Duncan are regularly on this forum, and are clearly labeled as employees of Seymour Duncan. Also in theory, 6L6G's and 6L6GC's have identical characteristics (power-handling capability aside), so the original bias level should sound as good with either one, even though it's way below 70% when 6L6GC's are installed. STR440 6L6GC vs =C= 6L6GC. Messages 9,097. The top of the tubes are close to the upper panel but the rack chassis was designed that way. 1; 2; The GE data sheet says the 7581A is interchangeable with the 6L6GC. looking for a full retube kit. =C= 6L6GC Switched back to JJ's and SED's and there is a world of difference. Each amp runs a pair of 6L6GC tubes. They sound fantastic and punch you in the gut unlike any other 6L6 I have tried. Silver Supporting Member. Sovtek wafer-based 5881's are great tubes as well, in the right amp. 6L6GC-For new, I think the TAD 6L6GWC-STR come pretty darn close to a GE 6L6GC-my favorite. You can go up from the lower rated 6L6's to a GC variant. Big bottles. 6CA7 should also work with that amp since they're a drop in replacement for el34 but i would still confirm with KSR beforehand to be safe. Steve Hoffman has said on several occasions that the GE's are his favorite Re: Sovtek 6L6WXT+ vs. Amp Central Station . Pro with 5881/6L6WGB. The 6L6GC tube is a 30W valve. Search in titles only Search in Tubes (Valves) only. 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. has anyone ever used the TAD 6L6gc-STR before? Are they any good, what about the JJ 6L6GC. The TubeStore Preferred series 6L6 are nice. They have a much heavier mid-tone that is ideal for vintage, rock, and metal music. The 6L6GC is an octal, beam power tube. KT77 should be somewhere in the middle between 6l6 and el34 and are known for a bigger low end. I'm not hating on all Chinese tubes the silver dragons work great in the 6505/5150 high gain type stuff but I'll pass on the 6L6 tubes what does the number after STR mean. Sonically, I found The TAD 6L6GCM-STR REDBASE is the latest 6L6GC designed and built to claim to be the best 6L6 type tube ever manufactured. EL34/6CA7 vs 6L6GC EL34/6CA7 vs 6L6GC. The moment I turned it on, I heard some loud speaker hums, so I pulled them out immediately. They produce rich low end, tight, full midrange and pleasing top end that is present Either is OK, but IMHO a better choice for a tweed Bassman is the Tung-Sol reissue 5881 or a JAN 6L6WGB. Members; colejustesen. I have been wanting to try some 6L6GC tubes in my Vendetta for the hell of it. My band has a new show in a few weeks and I was really hoping to get this problem solved. Just in general reading about hi-fi tube amps I get the impression that the KT88 is better regarded, and also in the many reviews I read of the Elekit before purchasing, most either say the stock EH 6L6GC's are "fine" or the reviewer doesn't even bother listening to them and goes right to the KT88/EL34/etc. At 50,75,100-130 watts I like EL 34 tubes the best. EHX 6L6GC The Sovtek 6L6WXT+ is exactley the same tube as the EH 6L6GC. Then there is the 6L6GC, which is rated for 30 watts and is the more popular model in this family of tubes. Which is a good thing. The Tungsol 6L6GC-STR is a good choice for any new or vintage guitar amp. Reactions I recently loaded my Mark IIB with the TAD 6L6GC STR Black Plates (RCA Black Plate Copy??)and it sounds amazing. Menu Log in Register Other Stuff. EL34 vs. Quick questionI've search this board and can't find an answer so I hope to find some help asap. In my opinion the best sounding available NOS 6L6 out there would be the RCA blackplate tubes. Comparing the TC50 with the STR445 6L6 tubes to the Mark VII at the 45W setting just did not cut it. Reply. They are here to help. Come home to put them in and see that the other 2 tubes in the amp are 6L6 GC STR 420. Forums ; Perform ; Amps ; 6L6GC vs. Still not bad compared to NOS Sylvania 6L6GC / STR-415. 6L6GC i'd be careful, an amp is a delicate balance of design that expects a certain performance When I first got my MC40 amps they had Ruby 6l6GC STR tubes that are exact replicas of the Sylvania "fat bottle" 6l6GC. TAD 6L6GC RCA 6L6 Black Plate vs. The 12AX7 tube is another one with good new production tubes being made, imho. 5881/6L6 Question In my 9100 I run Tung Sol 6l6GC STR . Rig-Talk . The Redbase 6L6GCM is beefier in build. Modern Tung-Sol 7581a Tubes. I ascribe much of this improvement in sound quality to the JJ 6L6GC tubes - clean, crystal highs that makes my toes curl! So, I switched them back. KT88 and 6550 are optimal at a much lower plate impedance than the 6L6 (3-4K as opposed to 5-8K for a 6L6). thetubestore. 5881. RCA 6L6 Black Plate vs. Thread starter El Fug; Start date Aug 18, 2010; This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others. then ide have the amp modded /tweaked from there. Members; sahlomonic. Thanks guys! Right now I am using some 6L6gc S. im playing out of a mesa roadster head. lmuqy rcak flqzsu wnhw oyd lvhb nvc cqmtiqf pxsnwsr fjgndm