Problem with Drive output

Jarvis96

New member
Currently building a simple one-knob overdrive. I finished the circuit on perfboard and hooked up the jacks and pots to test it before connecting a switch and putting it in an enclosure.

When the effect is not plugged into a guitar there is a clearly audible signal that can be heard when tapping the input jack, however, when I plug it into my guitar, there is no sound.

What might be causing this problem?
 
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