It's no big deal as long as the amp didn't fry. $20 is a cheap lesson to learn all things considered. I'll be ordering a tube from Aki on payday and hope to have better results from somebody who specializes in tubes. It’s amazing the difference the tubes make though. When the amp freaked out I plugged in the bass via the effect peddle to the board. Nice and clean but no balls. I'm starting to see why tube heads are so obsessed with the sound of tube amps.
John