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phono preamp design for c3m postie valve

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greetings everyone, just enquiring if anyone has a design for a phono preamp using the c3m in the first stage and say 6sl7 serving after that or while we're talking loctals why not a 7f7 in the following stages. ive heard a lot about this tube and how good it could be for phono (low noise high amplification) but can't find any designs. Also some spec sheets woud be helpful. Any additional thoughts would be greatly appreciated.
cheers fergs
 
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