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EI Tach and MP - Beep at power on?

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DesertNomad

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Jun 17, 2015
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When I turn my master switch on, my plane used to emit an electronic beep - maybe two or three in rapid sequence. It doesn't do that anymore and I didn't notice when it changed... possibly after my major panel rework last year.

I have an EI Tach and MP. Do these beep when turned on? The lights flash correctly but no sound. I also have a 496 and it may be that it used to be only on the master switch but is now on the avionics master.

Would an STEC30 beep at power on?

Just trying to figure out what it came from since I always assumed it was tied to the Tach. The sound did not come from the speaker but from an electronic chirp somewhere.

Thanks!
 

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