6SL7 vs 12AX7 Whats the dif.?

a DIY, modified Mullard 5-20 monoblock design

6SL7 vs 12AX7 Whats the dif.?

Postby hilldweller » Sun Nov 24, 2013 12:49 pm

Hi all,
I'm getting ready to embark on a pair of Eye Clones and was wondering which tube to use. I am leaning towards the 6SL7. My goal is the best range and sound quality. Any thought on this or is this a personal preference matter? I listen to straight ahead jazz and classic rock deep track and obscure stuff, and occasional classical when in the mood. Thanks in advance. (wine)
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Re: 6SL7 vs 12AX7 Whats the dif.?

Postby IGGY » Sun Nov 24, 2013 1:22 pm

I like both, but I love 6SL7 more.

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Re: 6SL7 vs 12AX7 Whats the dif.?

Postby hilldweller » Sun Nov 24, 2013 1:24 pm

Yea, I thought a bigger tube with bigger plate surface would be a better choice and that is what I will probably use.
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Re: 6SL7 vs 12AX7 Whats the dif.?

Postby Geek » Sun Nov 24, 2013 4:49 pm

They are electrically and sonically quite different.

The 6SL7 is identical to the miniature 5751. The 12AX7 has no equivalent octal.

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Re: 6SL7 vs 12AX7 Whats the dif.?

Postby hilldweller » Sun Nov 24, 2013 5:18 pm

Which means what?
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Re: 6SL7 vs 12AX7 Whats the dif.?

Postby IGGY » Sun Nov 24, 2013 7:10 pm

Your mail include 6SL7 hook-up for Eiclone.

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Re: 6SL7 vs 12AX7 Whats the dif.?

Postby battradio » Mon Nov 25, 2013 9:57 am

6SL7 has slightly less gain and less noise like the 7551 . will be using 6sl7 in mine
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Re: 6SL7 vs 12AX7 Whats the dif.?

Postby IGGY » Mon Nov 25, 2013 5:55 pm

That why I use 6SL7, so I can turn up more vol. on the preamp.

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