Can play drums at same time if needed.
The power tubes are biased into lower and higher idle currents, creating the fluctuating gain that produces the tremolo effect.
If someone would have told me Dave Alvin would also do some surf guitar I would never have believed them.
I'll be looking for the guy with the "sensitive side" chatting up the ladies.
He'll get you rockin!
Loudermilk unless otherwise specified.