Glad to help! I am no expert but tried to explained what I have learned over the years since all I saw online was pretty much bull$hit. Cheers! Please share with others, I am hoping to build a larger subscriber count, and it is quite a niche topic...
I started out in dentistry (a long time ago - then shifted to law) - and some 47-years ago we used the ultrasonic in the dental lab. HA - 99.999% were too chicken to stick their finger in the ultrasonic bath when running. The prices for an ultrasonic unit are so cheap these days compared to when we had one way back. Anyone these days working on car, bike, piston engine air-craft stuff should have one of these. CHEERS from AUSTRALIA.