A friend of mine asked me to check his wah to see if a problem he's having presents itself on my system and it does. It's a Budda Bud-Wah. With the guitar's volume control off or down low, there is a loud hum. This occurs with the wah on and on battery power or plugged in. I've checked all of the grounds with a multimeter and they are all making good contact. Other than that, the wah works as it should. Any suggestions?
The only pot would be the inductor, I guess that would be considered a pot too. I could try to spray some cleaner in it and see. I e-mailed Budda, maybe they'll offer some advice.