Just acquired a new toy, courtesy of Amazon (also available elsewhere) which I thought might interest some of you. It's a £20 digital oscilloscope that came in kit form:
Took about an hour to assemble, and obviously the first tests were on watch circuits. I knew what to expect, but never had a way to see for myself. Until now :)
The patients were a couple of ETA 955.112 movements I had lying around at home. One was completely blocked, the other was running but due service based on not being done for at least 5 years. Results in following posts.