?

This is exactly why you install or retrofit a filter on the air intake.?



On a side note, a shop vac on the bottom of the tube will get most of the crud + dust out...from the bottom.? ? Then try compressed air from the top.

Then stick it in the dishwasher....that works superb.? ? Go to 3M's? home page.? ?They make filters as small as 7" x 7".? ?They also have washable, and cutable filters, that can be cut to fit a specific size.

Don't get ur fingers on the ceramic.? Any skin oil / fingerprints etc, will result in reduced hi-pot test results.


Jim? VE7RF