So, I got swindled on craigslist and ended up with a non-funcioning Holy Grail. When bypassed, everything was fine. Activate the pedal, and all you get is HUM! no signal at all, just hum.

I open it up, and I notice that the solder around the large resistor (R1) looks burnt. The circuit is labeled as Revision C, and the resistor has color bands green brown gold gold (5.1 ohm 5%). The closes part I have is a 10 ohm resistor. I popped it in, but it still is humming.

So, having a bit of a background in circuit bending, I just shorted past the resistor. No Hum!! In fact I’ve got reverb too!

SO, what should I do to fix this? If I put another 5.1 ohm resistor in there, will it still hum? If I just skip the resistor, will I risk frying the pedal in the long run?

I only know enough to get myself into trouble, so I appreciate any advice. I hope I’ve given you enough info.