Hi there: I bought this used scope 30 years ago. Soon after channel B quit working. The pots and switches got less and less dependable wit dirt. I cleaned it out last week. The switches and pots are working now but I broke a yellow cylindrical component right after the BNC connector for channel A. I touched a wire from the square wave generator post to the other side of the component and channel A worked. I did the same test on channel B and it also works. What is this yellow component? Should I replace it or bypass it? What do I risk if I bypass the component? My guess is it serves as a form of protection for other components in the Oscope.
Thanks George
Thanks George