MXR Classic Overdrive - Flip a Switch to Make It a Zakk Wylde ZW44! : 5 Steps - Instructables
MXR M193 GT-OD – Thomann España
MXR Classic Overdrive - Flip a Switch to Make It a Zakk Wylde ZW44! : 5 Steps - Instructables
MXR Classic Overdrive Pedal - Evolution Music
MXR M86 Classic Distortion Effects Pedal | Guitar Center
Used MXR CLASSIC OVERDRIVE Guitar Effects Distortion/Overdrive Guitar Effects
mxr m173 classic 108 fuzz - rockmusic.es
MXR Classic Overdrive Pedal | Reverb
Used MXR Classic Overdrive - 458144
Used MXR Classic Overdrive TSU14095
Used MXR Classic Overdrive Pedal - 607695
The MXR classic overdrive pedal has a hidden switch inside that changes to the Zakk Wylde overdrive. I've seen people mod their own switch for it, but I just drilled a hole