Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › GuitarPCB Build Support › Another Dr. Phybes v4 build document question. This topic has 2 replies, 2 voices, and was last updated 4 years, 5 months ago by Steve. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts December 5, 2021 at 12:13 am #21820 SteveModerator Also shown on the v4 PCB is a spot for ‘D3’. That diode is not listed on the BOM. Does anyone know the value/type for it? Thanks. -=SteveO December 5, 2021 at 8:16 am #21822 BillyModerator That’s a reverse polarity protection diode 1N5817 or 1N4001 I’ve noticed Barry implementing the use of 1N5817 which has a lower voltage drop than the 4001 Either would be fine December 5, 2021 at 11:30 am #21826 SteveModerator Thank you sir! I have both in my parts bin so I’ll be using the 1N5817. 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