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Author
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Topic: Best Preamp Steel Mod Going...
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Steve Feldman
Member From: Millbury, MA USA
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posted 13 January 2002 01:35 PM
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Try swapping out your stock 12ax7 preamp tubes for a couple of Sovtek 5751 tubes. They have ~70% of the gain of standard 12ax7s, no noise, and a clear, bell-like quality. Best $20.00 you'll ever spend on tone. |
Tom Gorr
Member From: Three Hills, Alberta
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posted 13 January 2002 04:33 PM
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Great idea.This sounds to me like the "tube" equivalent of swapping out "old-tech" op-amps in solid state amps to improve sound. There was a study done on the distortion characteristics of different tube amps. It would be interesting to get the "spectrum analysis" of your recommended brand of tunes while distorting. |
Steve Feldman
Member From: Millbury, MA USA
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posted 19 January 2002 07:03 AM
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Just bumping up to see if anyone has had any experience with these 5751 preamp tubes. I think they're great, and here's a bit of a description from a couple of sites th at I have relied on in the past for info.
http://www.thetubestore.com/12ax7review.html http://www.torresengineering.com/5751jan.html Any thoughts out there?
[This message was edited by Steve Feldman on 19 January 2002 at 07:05 AM.] |
Dan Tyack
Member From: Seattle, WA USA
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posted 22 January 2002 09:08 AM
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I have used them. Also try AU7 tubes or some of the 'hi fi' ax7 types. It really does make a difference. I switch preamp tubes all the time in my Univalve for different sounds. ------------------
www.tyacktunes.com |
Bob Knetzger
Member From: Kirkland, WA USA
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posted 22 January 2002 09:59 AM
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Also try Sovtek 12AX7LPS.Very clean and "sweet" sounding!! |
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