Mailing List Message #63379
From: Joseph Berki <>
Subject: Tach signal
Date: Mon, 22 May 2017 19:27:20 -0400
To: 'Rotary motors in aircraft' <>

Does anyone know the nature of the tach signal coming out of the yellow wire of the lead igniter?


12 volt pulse?


Thanks for any help


Joe Berki

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