|
I must say I never noticed visible vibration from my fan when I used to use it. Mounted it behind the mirror with rubber 'O' rings stretched between the fan & the 3 collimation bolts sticking out. The only thing noticable was the rotating mass of air in the OTA as it was drawn down the tube.......or up the tube, which ever way you hooked up the fan. Having it on while viewing was useless.
|