Hi folks
I have managed to get my Video Doorbell Pro to work with a mechanical chime.
It does require a little more work than most will feel comfortable with but it’s an option for those who want their mechanical chimes to work. Mine (and my neighbour’s) have been up and running for a while now and work great - no issues.
I created a little instructable:
https://www.instructables.com/id/UK-Ring-Video-Doorbell-Pro-Working-With-Mechanical/