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I did some more experimenting and swapped out the 12AU7 tube for a 12BH7 tube. I also picked up 12 volt power supply. The 12AU7 tube sounds great but the 12BH7 sounds amazing. The 12BH7 definitely takes the pedal to a new level. Also running the pedal at 12 volts yields better results than 9 volts with both pedals sounding bolder. The pedal runs noticeably quieter at 12 volts when the 12AU7 is in the socket. To my ears the 12BH7 sounds fuller, tighter, and beefier (that’s what she said) than the
I did some more experimenting and swapped out the 12AU7 tube for a …
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