Many people give away heavy "tube" TVs for free just so they don’t have to carry them to the curb.

Working on vintage TV sets is dangerous. CRTs can hold a lethal electrical charge (tens of thousands of volts) even when unplugged for weeks.

Finding the best "tube" tech for free requires a bit of scavenging and a lot of reading. By using community forums and digital archives, you can keep these glowing pieces of history alive for another generation.

If you are working on a "transistorized" or tube-based set, you need the blueprints.