Thermionic Valve T-Shirt

Rock this cool Thermionic Valve T-shirt. The all-black tee features a large vacuum tube graphic with lightning bolts. Above and below the image are the words "Thermionic Valves" written in an old-school style font. You can wear this classic tee at your next technical meeting, to a concert, while hanging out, or just relaxing at home. Great gift for physicists, engineers, computer technicians, or anyone who loves tech.