---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 10/04/18: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:59 AM - Re: PASS-THROUGH CHARGER (Tundra10) 2. 06:41 AM - Re: Re: PASS-THROUGH CHARGER (C&K) 3. 09:59 AM - Re: Re: Liberty Field Flyers (Richard Girard) 4. 02:13 PM - PASS-THROUGH CHARGER (FLYaDIVE) 5. 02:38 PM - Re: Re: PASS-THROUGH CHARGER (FLYaDIVE) 6. 03:55 PM - Re: Re: PASS-THROUGH CHARGER (Robert L. Nuckolls, III) 7. 03:59 PM - Re: Re: PASS-THROUGH CHARGER (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 05:59:00 AM PST US Subject: AeroElectric-List: Re: PASS-THROUGH CHARGER From: "Tundra10" I once read a modification that changes the file system of the Stratux to read only, which mostly requires turning off logging. This will pretty much eliminate problems corrupting the file system by powering off without a shutdown. I just use whatever cheap cigarette lighter 5V USB adapter is handy and unplug the Pi at the end of the flight. I have done this for probably 50 flights by now. None of the USB adapters has caused EMI problems. When the file system gets corrupted, I will try the read only modification. Jeff Page Dream Aircraft Tundra #10 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483600#483600 ________________________________ Message 2 _____________________________________ Time: 06:41:49 AM PST US Subject: Re: AeroElectric-List: Re: PASS-THROUGH CHARGER From: C&K Same here except I don't even unplug it but just let it go on and off with the battery master. I've had the original cobbled together stratux for several years so I don't know if later versions are less tolerant or I'm just lucky. Cheap USB adapters have been OK. I suspect that since we mostly hear from folks who have a problem, we tend to over estimate how frequent the problems actually are. Ken On 04/10/2018 8:58 AM, Tundra10 wrote: > > I once read a modification that changes the file system of the Stratux to read only, which mostly requires turning off logging. This will pretty much eliminate problems corrupting the file system by powering off without a shutdown. > I just use whatever cheap cigarette lighter 5V USB adapter is handy and unplug the Pi at the end of the flight. I have done this for probably 50 flights by now. None of the USB adapters has caused EMI problems. > When the file system gets corrupted, I will try the read only modification. > > Jeff Page > Dream Aircraft Tundra #10 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=483600#483600 > > ________________________________ Message 3 _____________________________________ Time: 09:59:45 AM PST US From: Richard Girard Subject: Re: AeroElectric-List: Re: Liberty Field Flyers No offence Les, but how is this appropriate to the Aeroelectric forum? Rick Girard On Thu, Oct 4, 2018 at 12:54 AM Les Goldner wrote: > No. > Sa=C3=BD, why not have the Xmas party at your home? > > > Sent from my Verizon, Samsung Galaxy smartphone > > > -------- Original message -------- > From: Harry Torgovitsky > Date: 10/3/18 18:11 (GMT-08:00) > To: lgold@quantum-associates.com > Subject: Re: Liberty Field Flyers > > Hi Les, > > Looks like Bill won't be back in time for our meeting. Do you know of any > other speaker we could get? > > Thanks, > Harry > > > -------- Forwarded Message -------- > Subject: Re: Liberty Field Flyers > Date: Wed, 03 Oct 2018 17:55:03 -0700 > From: Bill Sherlock > To: Harry Torgovitsky > > Hi Harry, > > Unfortunately no, I hadn=99t realized, but I actually fly home on f rom Indiana on the 13th. Really sorry. > > I=99ll ask Linda about the Xmas party when she gets back from Rwand a. > > Bill > > > > On Oct 3, 2018, at 8:43 AM, Harry Torgovitsky wrote: > > > > Hi Bill, > > > > I forgot to ask if you'll still be available to be the speaker at our m eeting on October 13th. Please let me know. > > > > Thanks, > > Harry > > > > > > > > -- =9CBlessed are the cracked, for they shall let in the light.=9D Groucho Marx ________________________________ Message 4 _____________________________________ Time: 02:13:45 PM PST US From: FLYaDIVE Subject: AeroElectric-List: PASS-THROUGH CHARGER Hi Werner: I did not consider a DC - DC Converter... when you say clean, you are referring to no noise over radios and headsets? I guess if I go that direction the only other thing would be a charger for the battery? Going to Mouser right now. Thanks Werner, Barry On Wednesday, October 3, 2018, Werner Schneider wrote: > > > > Barry, > > I have very good experience with Traco Power DC-DC converters, they come > in all kind of varieties, also high power once, they are clean and work > perfect since over 15 years in my plane > > Mouser does sell them > > Cheers Werner > > ________________________________ Message 5 _____________________________________ Time: 02:38:54 PM PST US From: FLYaDIVE Subject: Re: AeroElectric-List: Re: PASS-THROUGH CHARGER Dave: Very good point. I read only ONE review where they stated RFI/NOISE. Just last night I came from a meeting where others (2 ea) have used the 12 VDC to an adjustable 5 VDC Converter and did not have ANY noise issues. The only point they bring up is DO NOT turn on and off the converter rapidly or under heavy/full load. Other than that all is good. I think I'm going to look for a robust converter and use it. Along with a simple DPST switch and a Battery backup (12 VDC @ 12 AH). THANK YOU GUYS, Barry On Wed, Oct 3, 2018 at 5:36 PM BMC_Dave wrote: > > I'm needing to do the same for my Stratux. Looking at these converters it > seems they like to belt out the EMI. Have you had any issues with yours? > > I found this one that's nice and sealed too: > > > https://www.amazon.com/dp/B06WVLFYJH/ref=sspa_dk_detail_4?pd_rd_i=B06 WVLFYJH&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=f52e26da-1287-4616-824b-efc564ff7 5a4&pf_rd_r=M3XWWYVBPFRG1XHN219V&pd_rd_wg=Z6c64&pf_rd_s=desktop-dp-si ms&pf_rd_t=40701&pd_rd_w=qoucR&pf_rd_i=desktop-dp-sims&pd_rd_r=427a 9c19-c751-11e8-8c11-7fd735fac2a8&th=1 > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=483579#483579 > > =========== =========== =========== =========== =========== > > ________________________________ Message 6 _____________________________________ Time: 03:55:48 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: PASS-THROUGH CHARGER > >Bob, I'd be interested to see your OV protection circuit. I don't >have an immediate need for it, but it sounds like something useful >to add to my toolbox. Thanks. > >Eric Emacs! It's a variation on the crowbar protection system . . . but instead of breaking the DC/DC converter's output feeder, you break the power input feeder. The trip point is precisely set at 5.2V Bob . . . ________________________________ Message 7 _____________________________________ Time: 03:59:21 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: PASS-THROUGH CHARGER >Just last night I came from a meeting where >others (2 ea) have used the 12 VDC to an >adjustable 5 VDC Converter and did not have ANY noise issues.=C2 =C2 >The only point they bring up is DO NOT turn on >and off the converter rapidly or under heavy/full load. Can't imagine why this would be. What's the risk? These devices tend to have built in current limiting and soft start features. Bob . . . ------------------------------------------------------------------------------------- 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.