Well it’s been a few years since I ( SVHOKidd ) posted. After I was disappointed with the Spider iii failing I bought a Fender Mustang iii in 2014 and it’s still going strong. I kept the Spider iii and recently dug it out. I rediscovered this thread. After reading pecorporation’s post about the cap and resistor, that’s what failed with my amp. I searched for a replacement card to no avail. I followed pecorporation recommendation and ordered a cap and resistor. I figured I’d give repairing it a try. If it doesn’t work out I’m thinking about building a tube head to replace its guts.