Hey nonost! Apologies for taking so long to get back. That 100K provides a drain to GND for the 10u cap and a slight attenuation of the output signal from the opamp that really isn't necessary but truth be told....it looks like I completely forgot it when I drew this layout
It won't make much of a difference with or without it to be honest.
I state that it's my first post, if something is wrong, please let me know.
I know that this 3D is a bit old and I don't know if I'll receive reply, but I will try
I just started building boards, so I'm pretty rookie
I built this buffer but I have a doubt: is it possible that on the scheme the input and output are inverted?
I checked holes, links, tested components before soldering, there are no unwanted bridges, offboard connections are ok, I didn't make any changes to the scheme but when I connect the buffer to the guitar and ampr, if I respect input and output jacks as they are, the sound is very thin and the volume too low.
If I reverse input and output, it sounds, volume is similar as I put guitar into amp and it sounds like a buffer should sound (at least I think).
If not, do you have any idea what might have happened? does something elude me?