u/Trjjcggt

I was on the lookout for oscilloscopes, but didn't have nearly enough use for one to buy a good digital one. I found a Tektronix 465B for quite cheap, and thought i'd get a scope and a really cool analog one. When i came home i tried to test it out. Only the right side of the screen is lighting up, and the beam is not visible. I have tried pretty much everything that Claude could suggest without opening it up. Is the screen lighting issue only visual or does that affect the functionality of the scope? And how would i go about troubleshooting what causes the CRT to not function? I have repaired quite a bit of electronics, and i assume it's either some caps, transistors or diodes that needs replacing? Thanks.