CardinalNSB(at)aol.com
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 Posted: Tue Sep 05, 2006 7:50 pm Post subject: Old Cessna filters/capacitators/avionics |
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My 1968 Cardinal has a whiskey flask sized "filter" in the middle of the alternator output wire, a metal capacitator on each magneto, a 2 inch square metal box filter that ties into the Zeftronics voltage regulator and a large like a half a roll of quarters paper shell capacitator between the turn coordinator wires.
I work under the supervision of a licensed ap mechanic.
1. what are the various filters for? I have been told that the flask size in the middle of the alternator line is only needed if using adf or loran. Because to filter out the ac would require a much bigger filter.
2. Would it be wise to remove them one by one and see what noises are introduced by their removal? I could always put them back on. Will I hurt anything if I run the aircraft and avionics sans all filters?
3. Would it be a good idea (noise wise) to run my avionics bus directly from the battery (feed and ground).?
4. Am I correct in assuming these filters only are effective while the engine is running?
Thank you Skip Simpson
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