Anyone know how to set the voltage of the regulated power supply for 9-volts on the VHT Valvulator? The manual says that it can be done, but didn't mention how. I opened the case to inspect... it doesn't have any visible dip switches or trim pots.

I tried to contact VHT... left a message on their tech support voicemail last week and haven't received a call back.

Got a gig next week and my Fulltone ChoralFlange (flanger setting) sounds like shit when powered with 12v.

Why is the default is set to 12 volts when most of the effects out there are 9v???

Please help!!