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Post subject: BassBreaker preamp tube assignments.
Posted: Wed Apr 16, 2008 11:00 am
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Joined: Tue Jul 17, 2007 3:41 am
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Location: Richmond, VA
I'm experimenting with some different tubes in my BassBreaker amp. I have already converted the power tubes to KT66 and replaced the SS rectifier with a tube rectifier, with pleasing results...except the "milk bottle" KT66 tubes tend to fall out when the amp is in the band trailer...the bottom of the amp is now lined with bubblewrap.

Question: There are three 12Ax7 tube slots. I'd like to experiment with switching out the V1 position for a 12AX7S or a ECC803, but I can't find a label or an online schematic that tells me which of the three positions is the first gain stage (V1). Is it the one near the edge of the amp or t he one near the middle? :?:

Help!


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