CrFr wrote on 2024-04-12, 06:14:
I don't think it is a oscilloscope at all. BNC connectors are labeled as "output". Maybe it is one of those electrotherapy machines for muscle pain relief. Could be the CRT is there just to monitor the output.
The prefix myo does mean muscle and the suffix scope means it's a device for viewing or examining something. Most of my Google results were just people trying to sell stuff, but I did find a few articles in google scholar mentioning the term. For example:
"In addition, a myoscope is now available which permanently records, by
means of a magnetic tape, electromyographic patterns. This tape can be
played back through the instrument and faithfully reproduces, visually
and acoustically, the muscle action potentials as recorded at the time of the
original examination."
https://thejns.org/view/journals/j-neurosurg/ … rticle-p595.xml
Interestingly, there weren't many hits, especially for a medical device. One possibility is that myo-scope or myo-scope are infrequently used terms for the device. Another possibility is that it never caught on as a medical device. A lot of the hits were from papers from the 30s through to the 50s, so it may be an older technology that wasn't used much.