When most people think about vacuum tubes, they picture big glass bottles glowing inside antique radios or early computers.

Editor’s Note: This is the second in our on-going What It’s Worth series that keeps you up to date on what’s hot in Antique Technology. For Part 1, click here ...

He goes over, one by one, the three vintage radios, the problems they had, and how he got them back into working order. No finding a replacement microchip here, this was all about replacing capacitors ...