Vox V847 Wah Pedal Made in USA Purchased new about 20 years ago. At the time, I modded it based on information from the Texas Blood blog, aiming for the sound of Stevie Ray Vaughan's Italian VOX. I've been using it until recently. Operation has been confirmed. This is a USA-made model and does not support an AC adapter. I don't remember the specifics of the mods, but the following mods have been performed: True bypass Replacement with vintage wiring Potentiometer replacement (I think it was CTS) Inductor replaced with red FASel Capacitor replacement (details forgotten) Please understand that this is a used item before purchasing.