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RE: PL Prologue autobias adjustment ...part 2

I put in a brand new quad of EH 6ca7 and with the screw turned to max position I could only get 340mv. So, the old tubes are probably fine. I guess i'll call Upscale Audio next.


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  • RE: PL Prologue autobias adjustment ...part 2 - rotarius 17:50:38 12/27/15 (0)

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