I have available a Thunderbolt 305 Linear Amplifier. It is in working
condition, but definitely needs a good cleaning and a tuneup. It has
not been used in at least 10 years, but it goes on immediately when
plugged in.

The ON/OFF switch needs to be replaced as the amp goes on without
flipping the switch.

I do have pictures available upon request. Please email for more
details.

Thanks