---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 06/21/21: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:24 AM - Re: Is there a switch configuration that will do this? (Robert L. Nuckolls, III) 2. 11:49 AM - Re: Is there a switch configuration that will do this? (David Carter) 3. 05:00 PM - Re: Is there a switch configuration that will do this? (user9253) 4. 05:29 PM - Re: Is there a switch configuration that will do this? (Robert L. Nuckolls, III) 5. 05:33 PM - Re: Re: Is there a switch configuration that will do this? (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 09:24:34 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Is there a switch configuration that will do this? > This switch with addition of two > diodes and the resistor cited above can be configured > to accomplish the switching functions you requested. > See attached: P.S. those 'loose' components present a small packaging problem. I think I'd fabricate an assembly-under-heat-shrink of the three compoents with wires coming out each end. Use 1/2" dual wall heat shrink . . . that's how I packaged a few hundred crowbar ov management modules. Your finished assembly will be about 1-1/2 inches long and 3/8" in diameter. It would tie nicely into an adjacent wire bundle. I've got all the materials in stock. I could build one up for you. Bob . . . Un impeachable logic: George Carlin asked, "If black boxes survive crashes, why don't they make the whole airplane out of that stuff?" ________________________________ Message 2 _____________________________________ Time: 11:49:19 AM PST US From: David Carter Subject: Re: AeroElectric-List: Is there a switch configuration that will do this? P.S. those 'loose' components present a small packaging problem. I think I'd fabricate an assembly-under-heat-shrink of the three compoents with wires coming out each end. Use 1/2" dual wall heat shrink . . . that's how I packaged a few hundred crowbar ov management modules. Your finished assembly will be about 1-1/2 inches long and 3/8" in diameter. It would tie nicely into an adjacent wire bundle. I've got all the materials in stock. I could build one up for you. Bob - thanks for the solution design & for the packaging tip. I was also wondering how much heat the resistor would need to dissipate in this application? I'm guessing not much? --- David Carter david@carter.net On Mon, Jun 21, 2021 at 12:26 PM Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > This switch with addition of two > diodes and the resistor cited above can be configured > to accomplish the switching functions you requested. > See attached: > > > P.S. those 'loose' components present a small > packaging problem. I think I'd fabricate an > assembly-under-heat-shrink of the three compoents > with wires coming out each end. > > Use 1/2" dual wall heat shrink . . . that's > how I packaged a few hundred crowbar ov management > modules. > > Your finished assembly will be about 1-1/2 inches > long and 3/8" in diameter. It would tie nicely > into an adjacent wire bundle. I've got all the > materials in stock. I could build one up for you. > > Bob . . . > > Un impeachable logic: George Carlin asked, "If black boxes > survive crashes, why don't they make the whole airplane > out of that stuff?" > ________________________________ Message 3 _____________________________________ Time: 05:00:27 PM PST US Subject: AeroElectric-List: Re: Is there a switch configuration that will do this? From: "user9253" Will this work? -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=502520#502520 Attachments: http://forums.matronics.com//files/taxi_lndg_lt_sw_107.jpg ________________________________ Message 4 _____________________________________ Time: 05:29:07 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Is there a switch configuration that will do this? >Bob - thanks for the solution design & for the >packaging tip. I was also wondering how much >heat the resistor would need to dissipate in >this application? I'm guessing not much?=C2 W = E^2/R = 14^2/270 = 0.725 Watts For the 'shrink potted' assembly I would probably use two 130 Ohm resistors in series to spread out the heat generation at 0.360 Watts each. It will warm up noticeably but only slightly so. Bob . . . Un impeachable logic: George Carlin asked, "If black boxes survive crashes, why don't they make the whole airplane out of that stuff?" ________________________________ Message 5 _____________________________________ Time: 05:33:00 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Is there a switch configuration that will do this? At 06:59 PM 6/21/2021, you wrote: > >Will this work? > >-------- >Joe Gores > >http://forums.matronics.com//files/taxi_lndg_lt_sw_107.jpg > Yes . . . that's the single pole switch version of that which I illustrated on 6/19 using a 2-pole, 3-position, on-on-on switch. Bob . . . Un impeachable logic: George Carlin asked, "If black boxes survive crashes, why don't they make the whole airplane out of that stuff?" ------------------------------------------------------------------------------------- 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.