This is the large "tube" that actually displays the picture.
If you are hunting for free TV tubes, safety is paramount. Vintage televisions are not like modern gadgets. free tranny tv tube
Enthusiasts in the amateur radio (Ham) community often have "junk drawers" filled with old transformers and vacuum tubes. Attending a local "swap meet" or "hamfest" can result in free components if you’re willing to chat and learn. Safety Warning: Handle with Care! This is the large "tube" that actually displays the picture