I have a vibroplex lightning bug from 1963. Worked like a charm until this weekend where there is apparently a short on the bug. I have tried everything to trace where the issue is coming from, but can't seem to figure it out. When I connect it to the rig (with the contacts WIDE open) it sends a tone meaning there is continuity.
Since a picture is worth a 1,000 words, here is a video: http://www.youtube.com/watch?v=qFZmI9pDo4U
The cable works fine as I use it between my straight key and the bug. When looking at it via a multi-meter, when connected to both posts and contacts open, it still shows continuity.
I appreciate the help and your expertise!