Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › General DIY Pedal Discussion › puff & buff n blend (answered) This topic has 1 reply, 2 voices, and was last updated 7 years, 3 months ago by Barry. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts February 2, 2019 at 1:33 am #4057 AnonymousInactive Howdy, I was about to start connecting the puff to the buff when I thought: Are they compatible? The +9v comes in to the buff pcb, then goes to the puff pcb, which changes to -9v by the charge pump, right? It’s late and thought I’d ask. Thanks, Kris February 2, 2019 at 11:43 am #4065 BarryKeymaster The PUFF circuit is the same as any of our other Negative Tip circuits thanks to the chip. As you sussed out wiring would be the same. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In