Breadboard issue

[Markus]

Hey, it’s my first time using a breadboard, and I’m trying to tinker with a distortion plus circuit. Everything is wired up and it seems to be working, however, when I get the volume pot all the way up, it kills the signal. Any idea what may be causing this? Thanks in advance.

 

[Flying]

Is this the circuit: https://www.electrosmash.com/mxr-distortion-plus-analysis

 

[Markus]

I did it from the schematic from the distortion 250 build docs

 

[Flying]

It's a simple enough circuit, hopefully the issue will quickly become obvious.

Could you please post a photo of the bread board, and have you substituted any component values?

 

[Flying]

I've not had a bad potentiometer, but if the volume is killed when the pot is all the way up it almost sounds like the wiper is not making contact with the resistant track at that final part of the rotation.

Pull the potentiometer out and rotate it for maximum volume and measure the resistance between pins 3 and 2. I'd anticipate you'd see something in the region of 1 to 2 ohms.

 

[BuddytheReow]

Does it get louder when you turn the volume pot down? That could be the obvious answer. Or there is a bad connection on lug 3 of the volume pot.

 

[Chuck D. Bones]

Pictures.