---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 04/07/24: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:29 AM - Re: Which Oil Pressure Switch? (user9253) ________________________________ Message 1 _____________________________________ Time: 08:29:08 AM PST US Subject: AeroElectric-List: Re: Which Oil Pressure Switch? From: "user9253" I happened across this circuit stored on my hard drive. Can not remember who the author is. It is designed to detect an AC voltage. The output of an alternator is not perfect DC, but has an AC component. This circuit will rectify that AC voltage and output a DC voltage, perhaps enough to enough to enable the Honeywell LCD LM SERIES MCU Hobbs meter. Since the meter only requires 0.8 milliamp, its enable pin must require much less than that. Perhaps someone can suggest resistor and capacitor values. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=513456#513456 Attachments: http://forums.matronics.com//files/hobbs_enable_182.png ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.