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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: MP-3 and 12SX7's posted by William Daley on September 10, 2004 at 09:35:18:
Tougher job; the amplifier power transformers have a 12V AC filament supply output, which you
can use direct to supply the filaments with 12V AC, whereas the pre-amps (at least my MP1) have
only a ~10V AC output for filaments which gets rectified and regulated down to 6.3V DC. You
would have to install an entirely new filament supply, and unless you want to use all 12V tubes in
the preamp, you would have to keep the stock supply for the 6.3V tubes. There are some
wonderful sounding 6SN7s out there, anyway, so why bother?
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: MP-3 and 12SX7's - Lew 11:24:06 09/13/04 (2)
- Re: MP-3 and 12SX7's - William Daley 12:17:26 09/13/04 (1)
- True grit. - Lew 13:39:26 09/13/04 (0)
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