Scott VE3QBZApr 29
Carlo IU1KGS 📻

Collins 500 kHz mechanical filter teardown. https://youtu.be/0D4oQ847AHE?feature=shared

Someone will cry for the destructive analysis.

#2214 Collins 500kHz Mechanical Filter Teardown

YouTube
Apr 29 at 8:34pmWeb
Show threadScott VE3QBZApr 29

@IU1KGS Was worth using one to make that video :)

I don't know what I expected, but I would have thought they were more complicated in some way.

I guess one thing becomes evident - it really doesn't look like there is anything in one to wear out!

I wonder how hard it would be to homebrew one?

Show threadCarlo IU1KGS 📻Apr 29
@ve3qbz a lost art, like cutting quartz crystals.
Show threadScott VE3QBZApr 29
@IU1KGS Yup! Back to the filter - looking at it more as the video nears the end, I guess it's genuinely mechanical - it's essentially a spring?
Show threadCarlo IU1KGS 📻Apr 29
@ve3qbz it appears to be a “disc flexural resonator” and its resonance mode is not obvious.