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Post by muzacman02 "Jamie" on Aug 20, 2013 10:55:51 GMT -7
HEY TO ALL, I was wandering what the Pros and cons are to the 5881's verses the 6L6's . I was going through my tube drawer and found a new old stock pair of 5881s . would they be killer or not killer as a substitute in my 67' Super Reverb? Anyone have the Tube data on these? thanks Jamie
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Post by Maddog on Aug 20, 2013 15:50:00 GMT -7
The 5881's are basically 6L6WGB tubes. 5881's (6L6WGB's) possess a little less volume and are a little more compressed than 6L6 (6L6GC). The gold std (for blackface fenders) 6L6 (6L6GC's) will be louder, cleaner, with a little tighter bass and more top end sparkle. I personally prefer the 5881/6L6WGB's in my old tweed amps. They distort earlier, and very nicely. I would say the 5881's will get you closer to a tweed sound. The 6L6GC, more of a blackface sound (think Twin Reverb). In your super, I'd want the BF sound....ie: 6L6GC. But it would prolly sound killer with the 5881's as well. Be sure to re-bias....
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Post by muzacman02 "Jamie" on Aug 20, 2013 17:39:38 GMT -7
I LOVE THE SOUNDS of the 6L6's however in order to hit the sweet spot with the super, your head will pound and ears bleed, that bad boy is LOUD!!! Maybe a lil more Compressed and less volume may help? I may try them just for The heck of it.
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Post by heynewguy (Ol’ Bill) on Aug 20, 2013 18:02:49 GMT -7
Is the 5881 an industrial 6L6?
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Post by brayks on Aug 21, 2013 0:38:27 GMT -7
I have a matched pair of 5881's I was just about to put in my EZG-50 and was wonderin' the same thing as Jamie. Think I'll slip them in for the heck of it. Thanks Lee!
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ksks
Full Member
Posts: 120
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Post by ksks on Aug 21, 2013 6:48:34 GMT -7
If your amp came with 6L6GC tubes, the 5881 may not be a plug and play solution. Check with the Doc or other tech source.
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Post by Jaguarguy (Mike) on Aug 21, 2013 7:26:50 GMT -7
I have 5881s in the Galaxie I just got from Burnsy - it took a little but I 'm really starting to like them. Very tweedy in the Galaxie.
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Post by Burnsy on Aug 21, 2013 7:39:17 GMT -7
What's the plate voltage on the EZG? With a 5U4, it's pretty low on the Galaxie (can't recall, but I believe under 400V), but I understand you don't want to push the Tung-Sol 5881's too far in regards to plate voltage. Biased up at 28mA I thought it had a great tweedy sound in the Galaxie.
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Post by muzacman02 "Jamie" on Aug 21, 2013 8:16:23 GMT -7
if the plate voltage is that low, my super will fry them!? The bias on the super runs a little higher, plate volts 450ish
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Post by wubberdubber on Aug 21, 2013 9:02:15 GMT -7
My experience with 5881's vs. 6L6's is that the 5881's are softer-sounding. I never had any issues with one taking higher voltage than the other.
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Post by hymns on Aug 21, 2013 9:42:44 GMT -7
I bought some anos tung-sol's for my 58 pro for 50 bucks and they sound great. Seem to be in great shape and planning on getting a few more sets. At that price it is well worth it. They were matched closely too.
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Post by Maddog on Aug 21, 2013 9:46:33 GMT -7
I too have used them interchangeably for yrs with no probs.....but here's a take from a tube pro... 6L6GCs are the most powerful (30 watts) of the 6L6s and handle the highest plate voltage (500V). All other suffixes of 6L6s handle less power and plate voltage. 6L6WGBs = 5881s Modern Russian 5881s are neither 5881s nor 6L6GCs but something in between. The can handle the high plate voltage (500V) of a 6L6GC but put out less power. Mike K KCA NOS Tubes www.kcanostubes.com
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Post by brayks on Aug 21, 2013 11:19:06 GMT -7
Cover me I'm goin' in...
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Post by Jaguarguy (Mike) on Aug 21, 2013 13:15:04 GMT -7
They sound good in the Galaxie Steve
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Post by freddieg on Aug 21, 2013 15:46:09 GMT -7
I had 5881's in my Victoria before I sold it to pay uncle Sam. They sounded good, they were new Tung Solstice. Nothing fancy but never had any issues, and the price is right if you are just experimenting.
The plate voltage spec on the Tung Sol 5881's is 400V. They are 23 Watts so maybe you can crank down the current a little?
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Post by zpilot on Aug 22, 2013 12:16:04 GMT -7
Hey Jamie. Another way to get your Super Reverb to its sweet spot at a lower volume (without a tube change) is to disconnect one of the four speakers. It will change the load from 2 ohms to 2.7 ohms and you will be driving less air. It won't make a huge difference but it might be enough for what you need. It doesn't cost anything to try it and it's reversible if you don't like it. You can always go back to all four speakers if you need the full volume, like when you play outdoors.
I even used only two speakers in my old SR. I have a Vibrolux Reverb now that I use often for rehearsals. I have disconnected one of the two 10" speakers and it is the perfect volume for a small room.
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Post by muzacman02 "Jamie" on Aug 22, 2013 15:29:48 GMT -7
the vibrolux is the amp IM GASSING BAD FOR!!!!!!! I have my super loaded with 4 speakers but 2 are only being used 4 ohm load, the vibrolux is the amp that sings , even though its 40 watts it breaks up at much lower volume. IMO. The Super Is My Security Blanket/Swiss Army Knife Amp. I know exactly what it will sound like and as long as I can turn it up to 4-5 Im Tickled , That amp just KIlls. I just wish it wasn't so deafening LOUD!!! Im gonna give the ole 5751 a try in the Pre Section.
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