The plp has 2 tubes in the phono 1 x 12at7 1 x 12ax7 in the line stage there are 4 x 12ax7 and 2 12at7. When you switch to the linestage the phono tubes switch off to prolong thir life. Does the phono stage go through the linestage if so i suppose i would have to roll the line stage as well.
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