Hi @dylan159, what an interesting project and admirable approach!

Have you a/b-ed your praemp against the original at all or is this more of an academic exercise?

Has anyone had a chance to verify the v2 schematic kindly posted by @graybench? Debating on which version to build..

I wonder why these types of pedals choose to power the transistor off the high voltage rail instead of the readily available 9V? For headroom when pushed by something powerful?

Hi. First of all, thank you to dylan159 for this interesting schematic and the cool vero layout. I was wondering how to add a high pass filter (bass cut) to this circuit? Is it a matter of adding a couple of resistors and capacitors around the input stage TL072 in the Core Shaper like this: https://...