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6L6WGC - Tube Amp Doctor

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Item ID: 004745
List Price: $24.00
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TAD 6L6WGC-STR GE-Style small bottle black-plate

"Our recommendation for single-ended Amps like Fender Champ 12, Ibanez Valbee, and others.

  • TAD has the remakes of the all time favorite 6L6 classics of RCA and GE. The TAD 6L6WGC-STR has warm lower mids and silky top end; exactly like the classic GE version of the 50s and 60s. The complex midrange and sweet heights are dedicated to excellence in a class of its own. The perfect choice for vintage amps like the Bassman, Twin or Super Reverb. The TAD 6L6WGC-STR is our preferred choice for classic tone with warm cleans and rich, sweet mids when pushed.
  • The TAD 6L6WGC-STR is only 80mm high (without pins) and does replace 5881 or 6L6WGB tubes as well.
  • The TAD 6L6GC-STR and the TAD 6L6WGC-STR have our exclusive black-plate designs, gold gird wire, double getter construction, no-noise filaments and 1.2mm thick heavy duty glass envelope.

Along with the TAD 6L6GC-STR (RCA-Style) is this TAD 6L6WGC-STR our recommendation for excellent tone and maximum lifetime among the 6L6GC type tubes." -Tube Amp Doctor

OptionOur Part NumberUPC/EAN
Matched PairT-6L6WGC-TAD-MP609722123365
Matched QuadT-6L6WGC-TAD-MQ609722123372

RoHS Compliant

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Product Reviews

4.80 out of 5 based on 10 reviews

These TADs were great. Got rid of the treble spikes, nice and smooth.

Tom Caron - May 7th, 2016

Really like this 6L6, great product, fast delivery..

JJRae - May 1st, 2016

Used in Ibanez Valbee 5w practice amp. Sounds much more clear and have more definition. Good upgrade to stock tube.

ekuscu - April 29th, 2016

TAD 6L6WGC are my favorite 6L6.They truly sound like G.E/RCA short bottles.They sound great in my 66' super reverb and my 74' pro reverb.

Chicken Pickn Parker - March 20th, 2016

I have to say I'm impressed with the mid range of theses. I play a strat through a beefed up bandmaster reverb. The amp is now a combo, with a real 76 super reverb op transformer, Jupiter red caps, a 15 inch Jensen Neo. Mostly all nos pre tubes with a rca long gray plate d getter in v1 vibrato channel. I have had my ups and downs trying to get this amp to sound good, from a d130 speaker, different tube rolling, and finally with these 6l6's, the pre tubes, and a real important aspect a rca 5as4 rectifier, my plate voltage is still 450v, :( it is a joy to play, I find myself unable to put the guitar down. I don't even need any pedals as these sound great on 2, use your attack on the strings to get these spanking.
I have nos 6l6 sylvania but those days are over. I have a few jem amps with all nos stuff but this amp is for playing. Thanks Tube Amp Doctor for a great user tube that is super fun to play! I will be stocking up. And of course the great service I get here at Antique Electronic Supply!

jchurch_no1sn.com - February 21st, 2016

These tubes sound beautiful
To me the sound is expensive vintage on affordable price.
All the right harmonics in all the right places.
Cross between RCA blackplate and JAN 6L6WGB/5881.
Adds a nice depth and sweetness to your tone.

tone freak - September 23rd, 2015

Disclosure: My gear: Gibson Les Paul Special and Fender Telecaster, played through the clean channel (only) of a 12 year old made in the USA Fender Hot Rod Deluxe with a Celestion Vintage 30 speaker, and upgraded capacitors. I have played all the old classic Fender, Marshall and Vox amps over the years, and my sounds live in the range of jazz, blues, and classic rock, with some punk and Foo Fighters territory.

Ok, here goes. I LOVE my new TAD 6L6WGC (short bottle) tubes. These replaced my Winged C 6L6, which apparently are no longer in production, and so now being sold as NOS at the price of a kings a fortune. Let me compare the two...

The Winged Cs had a huge sound, and by that I mean they are loud tubes, AND the bass and treble are as big as the mids. Whole band in a box. The mids are in fact harmonically complex (as they are famously famous for) such that when you overdrive them, and especially when you add some pedal grit, these tubes compress a lot, and the distortion swirls with lots of harmonic crazy complexity. I enjoyed playing them a lot, especially when playing alone in my living room. Which brings me to the drawbacks of the Winged Cs. First of all price. Wow. Second, those fun swirly mids may just add TOO much color. I noticed the difference between various pedals seemed lessened as these tubes added so much color of their own to the mix. Lastly, the big fat rich bass (which seems so great when masturbatorily jamming away in one's living room), when placed into an actual band setting with OTHER musicians, and live, sounds boomy. Not loose (at least not loose through a punchy speaker like the Vintage 30) but boomy. Just too much bass, and when dialing down the settings on the amp, the bass cannot be pulled down enough. This all is more of an issue when playing live, and with other musicians.

Which brings me to the VERY nice discovery that the TAD (short bottle) 6L6 represent. The TADs are MID-focused. YES they do sound a lot like the old RCAs (which were mid-focused too). Mids are where the guitar lives hombre. In my experience, players who say they don't like much mids, or dislike a MID HUMP, are often the players whose playing is confined to solo self petting in their living rooms. Or they play a style which calls for scooped mids, or massive bass (that is legit of course, remember my sonic range noted above). Live players seem to better understand that mid-focused tones cut through the mix, works with the bass (doesn't step on it) and compress and crunch more convincingly. So the short bottle TAD 6L6s are mid-focused. There remains plenty of great bass too. AND the highs are clear, but NOT ice-pick, even with the Tele (I had found the Winged Cs to make ice picks, and pulling down the treble controls did not tame the ice pick until the point of muffled tones). The EQ is just so much better balanced. Lastly, the harmonic complexity of the TADs is plenty rich, satisfying and musical (!!!) without adding the excessive color of the Winged Cs. Musical harmonic richness is important to me, and these tubes have it. I find the JJ's too sterile (no color in the mids). The Winged Cs too much color. And now the TADs just right. I am 100% happy with these tubes. No need to seek out dwindling stocks of old RCAs now.

Power wise, these have more clean headroom than the Winged Cs (mine broke up quite early). These break up in the middle of my volume settings, and they break up in a very musical way. I feel my cleans are better now, while my overdrive crunch more REAL and convincing. Bias note: I bias my own amp. I experimented with a range of bias settings between 65 and 78 millivolts. To my ears the best sounds sit at precisely 71.8 mV.

I should have bought a matched quad to replace mine on the fly if they die at a gig. However, every TAD tube is labeled with its actual power tested ratings (in Germany) so I think I can order two more with numbers to match my recent purchase.

I cannot speak to the longevity yet. They are too new.

In short: if you play classic mid-focused guitar tones (and unless you are playing modern brutal deadly types of metal) you should be, I HIGHLY recommend these for their classic RCA like mid-focused, musical, balanced REAL guitar tones.

Pablo T - May 28th, 2015


62Jaguar - May 9th, 2015

As close to the old GE type short bottles I've heard. They found a good home in the Twin there're in.

garybenet - February 3rd, 2015

These tubes mechanically are similar to RCA black plate 6L6GC's. The base has TAD molded into the bottom. They don't match any of the Russian current production to my eyes, nor Sino branded Chinese. They sound very good in a Stromberg Carlson 17 tube receiver, and really punch out lows, midrange and high clearly and strongly. I compared to GE and Sylvania NOS 6L6GC's. To me, it is a toss up between TAD and Groove Tubes for the best current production, since Winged C is out of the glass tube market.

Don H. - September 17th, 2014

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