Vacuum tubes, or thermionic valves, are arrangements of electrodes in a vacuum within an insulating, temperature-resistant envelope.
Although the envelope was classically glass, power tubes often use ceramic and metal.
We purchased this wonderful amp from Thom Panunio, engine working in the music recording industry for many years.
I first heard one of these at an NRBQ show in the early 80’s and was hooked.Made by Valso for Oahu, this baby houses 2 6V6 in the power line up. Even the unbelievable Ampeg Factory Info Warranty Card, WOW.