PREAMPLIFIER USHER P307 A - diyAudio
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Old 3rd July 2012, 10:16 PM   #1
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Join Date: Oct 2009
Default PREAMPLIFIER USHER P307 A

hi anyone has information about this before. I have one and I have changed
capacitors that was bringing in 1uf and all pf
While I can only adjust the tension to make it perfect, this change is very noticeable, also I think can be improved by a potentiometer
resistance and by the MC phono.
** Someone would have the scheme.
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