Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › GuitarPCB Build Support › Adjusting bias on Q1 on “After Blaster” This topic has 2 replies, 3 voices, and was last updated 4 years, 4 months ago by Billy. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts January 28, 2022 at 2:22 am #22776 SteveModerator Is there an “optimum” voltage I am shooting for or is it a more of a “what sort of tone you are looking for”? Thanks, in advance! -=Steve January 28, 2022 at 3:26 am #22777 BarryKeymaster Anything from 4.5v to 6.5 v is great. The higher the voltage the more aggressive to a point within that range I feel. January 28, 2022 at 3:29 am #22778 BillyModerator It’s more what you’d want Steve As you’ll know from the build doc you can also use a 2N5457 for a grittier tone adjusting the drain resistance I’d start at the usual 5v on the drain and go from there 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