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Old 10-11-2012, 09:44 AM   #1
andrerist
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gainier power tube

i have a VHT special 6 ultra with a JJ 6v6 and JJ 12ax7's. is there anything i can do to add a little bit more gain in the way of tubes or is this about is as good as it will get (brands aside)?
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Old 10-11-2012, 10:12 AM   #2
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Quote:
Originally Posted by andrerist
i have a VHT special 6 ultra with a JJ 6v6 and JJ 12ax7's. is there anything i can do to add a little bit more gain in the way of tubes or is this about is as good as it will get (brands aside)?

There could possibly be a 12AX7 that breaks up a little sooner or gives slightly more output to push the power section... But to be honest I'd be suspicious of anyone that made that claim.

I think you're pretty much getting as much as gain as you're gonna get.

Maybe get an overdrive to use as a boost?
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Old 10-11-2012, 11:55 AM   #3
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^ that's what i'd have thought.
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Old 10-11-2012, 12:16 PM   #4
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You need a gainier 12ax7, you want this http://www.dougstubes.com/ruby-12ax...high-grade.html
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Old 10-11-2012, 12:37 PM   #5
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Originally Posted by Perverockstar69
You need a gainier 12ax7, you want this http://www.dougstubes.com/ruby-12ax...high-grade.html


i already have a pair of JJ 12ax7's in there and it says that is basically the same thing. i think my question more so is can i swap out the 6v6 for something like a 6l6? or is that a big no no?
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Old 10-11-2012, 12:45 PM   #6
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But those ones are higher gain... You CAN'T change your 6V6 for 6L6. So, no no.
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Old 10-11-2012, 12:49 PM   #7
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i know on the normal special 6 they say you can put most power tubes in there. I guess you could email vht and see what they say.

6L6 won't give you more gain, though. it'll give you more volume and headroom.
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Old 10-11-2012, 12:53 PM   #8
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Really? Very different power tubes? I didn't check that :O.

And yes, no more gain, but more volume and headroom sometimes is really nice, it depends on your needs.
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Old 10-11-2012, 12:53 PM   #9
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If you're looking for "gain" in the traditional sense, the power tube is the wrong place to look. And TBH, tube rolling 12AX7's isn't going to do anything appreciable.

I guess we need to know what you're trying to accomplish in better detail.
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Old 10-11-2012, 12:57 PM   #10
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Quote:
Originally Posted by Perverockstar69
Really? Very different power tubes? I didn't check that :O.

And yes, no more gain, but more volume and headroom sometimes is really nice, it depends on your needs.


yeah- they say you can, anyway. I haven't tried it, the 6v6 already does more or less what i want.

and yeah, of course more headroom can be cool if that's what you want.

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If you're looking for "gain" in the traditional sense, the power tube is the wrong place to look.


that's what i was gonna say

and agreed regarding the preamp tubes. I mean unless you have a 12at7 or something in there for some reason, i doubt changing to a high gain 12ax7 is going to do all that much (though i could be wrong, i haven't tried any 12ax7s which were labelled as being "high gain"... the cynic in me suspects it's marketing more than anything else )
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Old 10-11-2012, 01:10 PM   #11
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Originally Posted by Dave_Mc
the cynic in me suspects it's marketing more than anything else

+1

I don't distrust Doug's Tubes, but that just seems odd to me. If there truly was a 12AX7 with an appreciably greater output then why isn't it called something else, like the lower output 12AT7 or the 12AY7? Just makes me think it's all hype.
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Old 10-11-2012, 01:40 PM   #12
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Quote:
Originally Posted by tubetime86
+1

I don't distrust Doug's Tubes, but that just seems odd to me. If there truly was a 12AX7 with an appreciably greater output then why isn't it called something else, like the lower output 12AT7 or the 12AY7? Just makes me think it's all hype.


Well, the AT7 and the AY7 have a different construction from an AX7. Technically its possible to have a 'higher gain' tube, because tubes vary so much. That being said, I don't think it'll make a difference.
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Old 10-11-2012, 01:44 PM   #13
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I'd just stick a nice clean boost in front of the amp, like an MXR 10 band EQ or Microamp.
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Old 10-11-2012, 02:01 PM   #14
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Originally Posted by Cathbard
I'd just stick a nice clean boost in front of the amp, like an MXR 10 band EQ or Microamp.


damn, i wanted to be the first to give the non-tube advice

but i agree, a clean boost... or if you want more gain, stick an OD in there. the micro amp works great in front of an amp though.
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Old 10-11-2012, 02:15 PM   #15
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Quote:
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Maybe get an overdrive to use as a boost?

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Old 10-11-2012, 02:53 PM   #16
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Maybe get an overdrive to use as a boost?
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Old 10-11-2012, 03:14 PM   #17
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Good thought, 311. That hadn't occurred to me.
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Old 10-11-2012, 03:26 PM   #18
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that's what I'm here for
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Old 10-11-2012, 04:47 PM   #19
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Hey, something just came to me, I don't think anyone else mentioned it yet. What about using an OD as a boost?

















Quote:
Originally Posted by tubetime86
+1

I don't distrust Doug's Tubes, but that just seems odd to me. If there truly was a 12AX7 with an appreciably greater output then why isn't it called something else, like the lower output 12AT7 or the 12AY7? Just makes me think it's all hype.


haha yeah

Quote:
Originally Posted by Kevin Saale
Well, the AT7 and the AY7 have a different construction from an AX7. Technically its possible to have a 'higher gain' tube, because tubes vary so much. That being said, I don't think it'll make a difference.


oh yeah, of course- but it's still presumably going to be within certain limits. I mean... they always say a 12ax7 has a gain of, say, 100, and a 5751 has a gain of about 70. I'm guessing that means the 12ax7 maybe has a range of between maybe 90 and 110. but if you really want to lower the gain, you'd get a different tube, and presumably the reverse is true for increasing the gain... there are better, more efficient ways to do it which might actually work.
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Old 10-11-2012, 06:40 PM   #20
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Since nobody has mentioned it, I'm thinking maybe TS should just get an OD to use as a boost.
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