Do you all know of any 9V adapters that are worth a damn ??? I've been buying these Radio Shack 9V adapters for my pedals that plug into the back of my preamp. The cords on them are about as durable as overcooked vermicelli and I'm tired of replacing them. I don't want to use 9V batteries because the power supply with those isn't as stable......(plus, you have to worry about how long they've been in service). Thanks very much for any input!