Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › GuitarPCB Build Support › Tube Screaming Ultra real quick question This topic has 3 replies, 2 voices, and was last updated 4 years, 7 months ago by Anonymous. Viewing 4 posts - 1 through 4 (of 4 total) Author Posts October 27, 2021 at 10:07 pm #21372 AnonymousGuest I assume SW1 should be an on-off-on to get LED, none, 914 clipping options? Thanks. October 28, 2021 at 4:07 am #21375 AnonymousGuest It is working in all 3 positions with an on/off/on, but should I have an On On On? It will be easy for me to switch the switch if needed. October 28, 2021 at 7:33 am #21376 BillyModerator It is an SPDT on off on Jon the off position gives you op amp clipping which should be the loudest October 28, 2021 at 10:55 am #21378 AnonymousGuest Thanks Billy!! Author Posts Viewing 4 posts - 1 through 4 (of 4 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In