I was wondering what to look for on a 3-500Z that would indicate trouble or quality of the tube.
Things like the lettering and the plate coating on the edges.
Mine seem to have initials carved in the plate.
These are off ebay and I'd like to know they aren't damaged.
So far there is no foreign materials rolling around inside.
Things like the lettering and the plate coating on the edges.
Mine seem to have initials carved in the plate.
These are off ebay and I'd like to know they aren't damaged.
So far there is no foreign materials rolling around inside.