Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › GuitarPCB Build Support › T.S. Preamp R1 value (answered) This topic has 2 replies, 2 voices, and was last updated 7 years, 2 months ago by Anonymous. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts March 22, 2019 at 5:49 pm #4925 AnonymousInactive Should have put this in my last post, but R1 calls for 2M2 for the Zenith Mini and the Tube Screaming Preamp. Just got back from the local Frys and they didn’t have that value in stock. I have a few 2M. Will that be sufficient? March 22, 2019 at 5:53 pm #4926 BarryKeymaster 2M is fine. You could teepee two resistors in series if you wanted but not necessary. March 22, 2019 at 6:20 pm #4927 AnonymousInactive Awesome, thanks Barry. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In