---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 10/06/10: 25 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:59 AM - coil cord (Andy Hawes) 2. 05:53 AM - Re: Plane Power Alt. (Kevin Boddicker) 3. 06:26 AM - Re: Bob's take? (Dan Billingsley) 4. 07:31 AM - Gold contacts? (user9253) 5. 07:42 AM - Re: Z 10-8 review (user9253) 6. 07:43 AM - Z 10-8 review (Tim Andres) 7. 08:05 AM - Re: Z8 Ground Power test switch (user9253) 8. 08:11 AM - Re: Bob's take? (Robert L. Nuckolls, III) 9. 08:11 AM - Re: Gold contacts? (Mike Welch) 10. 08:16 AM - Re: Re: Z 10-8 review (tim2542@sbcglobal.net) 11. 08:33 AM - Re: Gold contacts? (Robert L. Nuckolls, III) 12. 08:34 AM - Re: Plane Power Alt. (Robert L. Nuckolls, III) 13. 08:40 AM - Re: coil cord (Robert L. Nuckolls, III) 14. 08:49 AM - Re: coil cord (Andy Hawes) 15. 08:50 AM - Re: coil cord (Andy Hawes) 16. 09:07 AM - Re: Z10-8 Review (Jeff Page) 17. 09:37 AM - Re: Z10-8 Review (tim2542@sbcglobal.net) 18. 09:57 AM - Re: Radio Shack 3 row 15 pin d-Sub (rparigoris) 19. 01:18 PM - Re: coil cord (Robert L. Nuckolls, III) 20. 01:20 PM - Re: Re: Radio Shack 3 row 15 pin d-Sub (Robert L. Nuckolls, III) 21. 02:11 PM - Re: Radio Shack 3 row 15 pin d-Sub (rparigoris) 22. 03:49 PM - Re: Plane Power Alt. (Kevin Boddicker) 23. 05:50 PM - Re: coil cord (Andy Hawes) 24. 05:57 PM - Re: coil cord (Andy Hawes) 25. 08:02 PM - Re: Plane Power Alt. (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 04:59:18 AM PST US Subject: AeroElectric-List: coil cord From: Andy Hawes Wondering if anyone knows how I might obtain coil cord. Looking for a 5 wire, 22 gauge conduit via coil cord similar to a telephone handset to base cord. Thank you, Andy ________________________________ Message 2 _____________________________________ Time: 05:53:48 AM PST US Subject: Re: AeroElectric-List: Plane Power Alt. From: Kevin Boddicker Yes, I am using the basic Z-11, with a B&C over voltage/under voltage module wired to trip a 5A breaker. In case of an OV event the contactor in the B lead would open. Essentially I would have two OV systems. Both triggered by a 5A breaker. Is there any harm or potential harm in this? Thanks Kevin On Oct 5, 2010, at 10:17 PM, Robert L. Nuckolls, III wrote: > > At 05:17 PM 10/5/2010, you wrote: > > Bob, > I bought a Plane Power alternator and want to install it on my Tri Q 200. I have the crowbar over voltage module, wired as per your recommendations. I will be replacing a ND IR atl. for various reasons. The Plane Power is also IR. Can I just hook the field wire to the same wire I have for the field wire on the old unit. Their instructions lead me to believe it to be that simple. I have a 5A circuit breaker in the current system, and that is what they call out. Am I missing something? > > Last time I looked at the PP alternators, they > had crowbar ov protection built in . . . See: > > http://plane-power.com/images/AL12_EI60%20Installation.pdf > > are you using something different that does not > feature built in protection? > > > Bob . . . > > > > > ________________________________ Message 3 _____________________________________ Time: 06:26:23 AM PST US From: Dan Billingsley Subject: Re: AeroElectric-List: Bob's take? Bob, Thanks for the time spent on this topic. It is interesting how easy it can =0Abe to gather a differing opinion on what is going on "inside the wi re". Very =0Ainformative take on how to determine the size of Batt cable... it helped!=0AThanks again,=0ADan=0A=0A=0A=0A=0A____________________________ ____=0AFrom: "Robert L. Nuckolls, III" =0ATo : aeroelectric-list@matronics.com=0ASent: Tue, October 5, 2010 10:48:07 AM =0ASubject: Re: AeroElectric-List: Bob's take?=0A=0A=0ABob, if you get a ch ance, take a look at the Rotax list as there is an=0A>>interestiing differe nce of opinion concerning Amps and wire sizes. I would =0Alike=0A>>your tak e on it.=0A--- I've capture it to a thumb drive but it needs=0A-- - a LOT more attention to it than I have right=0A--- now. I'm heade d back to M.L. in a few minutes=0A--- and I'll see if I can get to it tonight or=0A--- in the morning.=0A- Okay, I got it done. See:=0A =0Ahttp://tinyurl.com/25t4lh3 =0A=0A- You might suggest that those folks =============== =0A ________________________________ Message 4 _____________________________________ Time: 07:31:09 AM PST US Subject: AeroElectric-List: Gold contacts? From: "user9253" > Also that I should probably be using the gold contacts. Gordon, Gold contacts offer low resistance for low voltage instrument signals. However, gold contacts can not handle large currents like strobe lights. Mouser.com and Digikey.com offer a large selection of switches along with their ratings. Keep in mind that snap action AC switches rated for 120vac or higher can also handle the same current at 12vdc. The switches that came with my RV-12 kit from Van's Aircraft are AC rated. AC rated switches also have a DC rating, even if it is not published. Rocker switches might look cool, but they take up more room on the panel and cost more than equally rated toggle switches. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=314911#314911 ________________________________ Message 5 _____________________________________ Time: 07:42:31 AM PST US Subject: AeroElectric-List: Re: Z 10-8 review From: "user9253" You might consider over-voltage protection, unless it is built into the alternator. The avionics master switch is an unnecessary single point of failure. Schematic looks good. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=314912#314912 ________________________________ Message 6 _____________________________________ Time: 07:43:32 AM PST US From: "Tim Andres" Subject: AeroElectric-List: Z 10-8 review I have my plan drawn out and posted to my web site. I would appreciate having the group look it over. There are notes on the page regarding design goals and a different way of feeding the Aux battery I'm considering. The application is a Cozy MK IV all electric, single mag, 1 EI, Single Alternator and a brown out battery Thanks, comments appreciated. Tim Andres http://tinyurl.com/2c5kbzd PS, I posted this to the group earlier, but evidently it did not go thru. Sorry if this is a duplicate. ________________________________ Message 7 _____________________________________ Time: 08:05:38 AM PST US Subject: AeroElectric-List: Re: Z8 Ground Power test switch From: "user9253" > do I still have OV protection from the 9024 module? No, you do not. The bottom half of the switch needs to be in series with the circuit breaker, not in parallel. Also, only one diode is needed. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=314915#314915 ________________________________ Message 8 _____________________________________ Time: 08:11:23 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Bob's take? At 08:22 AM 10/6/2010, you wrote: >Bob, Thanks for the time spent on this topic. It is interesting how >easy it can be to gather a differing opinion on what is going on >"inside the wire". Very informative take on how to determine the >size of Batt cable...it helped! >Thanks again, Dan No problem. I've received a couple of private e-mails that took me to task for what they perceived as a pejorative effort personal to some of the thread-participants. None of those individuals were subscribers to the AeroElectric-List. I assured them that the mission throughout the AeroElectric Connection sponsored activities is the discovery of physics that drives simple-ideas and art for building OBAM aircraft. It was interesting that so many words and ideas (some wrong) were offered in a thread that did not go to a practical answer for the original quester. Thanks for bringing it to my attention. It was a useful exercise for me too. Bob . . . ________________________________ Message 9 _____________________________________ Time: 08:11:24 AM PST US From: Mike Welch Subject: RE: AeroElectric-List: Gold contacts? > Gold contacts offer low resistance for low voltage instrument signals. Ho wever=2C gold contacts can not handle large currents like strobe lights. Mo user.com and Digikey.com offer a large selection of switches along with the ir ratings. Keep in mind that snap action AC switches rated for 120vac or h igher can also handle the same current at 12vdc. The switches that came wit h my RV-12 kit from Van's Aircraft are AC rated. AC rated switches also hav e a DC rating=2C even if it is not published. Rocker switches might look co ol=2C but they take up more room on the panel and cost more than equally ra ted toggle switches. > Joe Joe=2C Gordon=2C list members=2C I was going to ask that very question a few days regarding the ability to use an AC rated switch for a DC operation. Thanks!! I have the Dornan 10A 125v AC switches that I got from Auto Zone. I am installing them in my panel presently. Coincidently=2C I was also building the strobe system for my plane. I re ad somewhere recently that the reason switches have a bit of a problem working with strobes is due to arci ng. Evidently=2C if the super high voltage spark leaves behind a little residual voltage=2C this will cau se arcing in the switch=2C and the arcing is what destroys it. Someone suggested the remedy is to fix the tabs on the s witch with a capacitor. Supposedly=2C the capacitor will absorb this latent spark=2C and keep the s witch in good shape. I don't know if this is true=2C but someone said it in a blog I read rece ntly=2C when I was doing some research to see if my switches would work (and especially for the strobe). I also don't remember the capacitor rating they recommended=2C either. Has anyone heard of this=2C and know th e correct size cap? Mike Welch ________________________________ Message 10 ____________________________________ Time: 08:16:21 AM PST US From: tim2542@sbcglobal.net Subject: Re: AeroElectric-List: Re: Z 10-8 review Thanks Joe The Plane Power units have it built in. Also an Avioncs switch failure is not an issue as most of the equip. can be fed with the Aux switch. The Garmin and GRT equip. have dual feeds. Thanks, Tim Sent from my iPhone On Oct 6, 2010, at 7:39 AM, "user9253" wrote: > > You might consider over-voltage protection, unless it is built into the alternator. > The avionics master switch is an unnecessary single point of failure. > Schematic looks good. > Joe > > -------- > Joe Gores > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=314912#314912 > > > > > > > > > > ________________________________ Message 11 ____________________________________ Time: 08:33:19 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Gold contacts? > Also that I should probably be using the gold contacts. Gordon, Gold contacts offer low resistance for low voltage instrument signals. However, gold contacts can not handle large currents like strobe lights. Mouser.com and Digikey.com offer a large selection of switches along with their ratings. Keep in mind that snap action AC switches rated for 120vac or higher can also handle the same current at 12vdc. The switches that came with my RV-12 kit from Van's Aircraft are AC rated. AC rated switches also have a DC rating, even if it is not published. Rocker switches might look cool, but they take up more room on the panel and cost more than equally rated toggle switches. An excellent point Joe. I would elaborate by offering the notion that the switch failures we've studied here on the list had little to do with "current ratings". Every failed device we studied exhibited the effects of overheating at some location OTHER than mated contacts within the switches. Combining this fact with a market history going back 5 decades for these switches suggests that the failures were precipitated by forces outside design goals for the switch. As you've noted, gold contacts are specialty products useful only in VERY low current applications. Microswitch suggests 1A as the upper limit for longevity in their gold contact basic switches. Lower still is better yet. Years ago at Beech we were buying $high$ crystal can relays that were rated at 3A but came with gold plated contacts. Emacs! The idea was that the designer could use ONE device to populate both 'high' current and 'small signal' systems. A fresh, out-of-the-box relay could be installed in an instrumentation system that required consistency of gold contacts . . . or you could install it in a 2A service application and let the gold burn away exposing the more ordinary silver-cadmium contacts. Somebody in QA decided to do 100% receiving inspection on these relays and guess what? They tested them for a few dozen cycles at max rated current, blessed them as 'functional' and put them back in the box. It took some time and a LOT of dollars to figure out why some of our VOR/LOC/GS and thermocouple signal systems were failing. It then took more time and dollars to figure out how many airplanes went to the field with "tested and blessed" relays installed in small signal locations. This exercise prompted a change to call out separate part numbers for the low-level and high-level systems. All because it was less expensive and more reliable to control the configuration by part number than to educate every individual in the supply chain as to the unique features of the relay with an expectation that they would leave them alone. Bob . . . ________________________________ Message 12 ____________________________________ Time: 08:34:26 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Plane Power Alt. At 07:50 AM 10/6/2010, you wrote: Yes, I am using the basic Z-11, with a B&C over voltage/under voltage module wired to trip a 5A breaker. In case of an OV event the contactor in the B lead would open. Essentially I would have two OV systems. Why two ov systems? Both triggered by a 5A breaker. Is there any harm or potential harm in this? No harm . . . but the rationale is mystifying. Bob . . . ________________________________ Message 13 ____________________________________ Time: 08:40:02 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: coil cord At 06:58 AM 10/6/2010, you wrote: > >Wondering if anyone knows how I might obtain coil cord. Looking for a 5 >wire, 22 gauge conduit via coil cord similar to a telephone handset to base >cord. That can be tough. I've had several custom coil cords quoted for a product but as a general rule, these are not an off-the-shelf product. They are manufactured to a specific application. Your best bet is to find an existing cord from which you can cut out a length suitable to your needs. The only thing I could find in a hurry . . . http://tinyurl.com/2b9lmhv Bob . . . ________________________________ Message 14 ____________________________________ Time: 08:49:49 AM PST US Subject: Re: AeroElectric-List: coil cord From: Andy Hawes Thank you -- I=B9ll give that a shot On 10/6/10 10:38 AM, "Robert L. Nuckolls, III" wrote: > At 06:58 AM 10/6/2010, you wrote: > >> >> Wondering if anyone knows how I might obtain coil cord. Looking for a 5 >> wire, 22 gauge conduit via coil cord similar to a telephone handset to b ase >> cord. > > That can be tough. I've had several custom coil > cords quoted for a product but as a general > rule, these are not an off-the-shelf product. > They are manufactured to a specific application. > > Your best bet is to find an existing cord from > which you can cut out a length suitable to your > needs. The only thing I could find in a hurry . . . > > http://tinyurl.com/2b9lmhv > > > Bob . . . > > > > ________________________________ Message 15 ____________________________________ Time: 08:50:39 AM PST US Subject: Re: AeroElectric-List: coil cord From: Andy Hawes Looks good to me. The gauge is off but I just need to carry a small 50 mA current from a switch to a relay. Maybe 2 feet total. Beautiful, thank you! On 10/6/10 10:38 AM, "Robert L. Nuckolls, III" wrote: > At 06:58 AM 10/6/2010, you wrote: >> >> Wondering if anyone knows how I might obtain coil cord. Looking for a 5 >> wire, 22 gauge conduit via coil cord similar to a telephone handset to base >> cord. > > That can be tough. I've had several custom coil > cords quoted for a product but as a general > rule, these are not an off-the-shelf product. > They are manufactured to a specific application. > > Your best bet is to find an existing cord from > which you can cut out a length suitable to your > needs. The only thing I could find in a hurry . . . > > http://tinyurl.com/2b9lmhv > > > Bob . . . > > > > ________________________________ Message 16 ____________________________________ Time: 09:07:37 AM PST US From: Jeff Page Subject: Re: AeroElectric-List: Z10-8 Review Tim, Before you wire it, I suggest you check that the 430W Aircraft Power 1 and Aircraft Power 2 are internally isolated in some way. I suspect (but do not know) that they are just connected together. If so, then your clearance delivery switch will backfeed the entire Avionics Bus, which is not what you intend. Perhaps power the 430W Comm section, rather than the ICOM, since you can transfer frequencies from the airport data instead of manually entering them ? Jeff Page Dream Aircraft Tundra #10 > Time: 09:07:27 AM PST US > From: "Tim Andres" > Subject: AeroElectric-List: Z10-8 review > > I have my plan drawn out and posted to my web site. I would appreciate > having this group look it over. There are notes on the page regarding design > goals and a different way of feeding the Aux battery I'm considering. > > Tim Andres > > http://tinyurl.com/2c5kbzd ________________________________ Message 17 ____________________________________ Time: 09:37:25 AM PST US From: tim2542@sbcglobal.net Subject: Re: AeroElectric-List: Z10-8 Review Thanks Jeff, good thoughts. I will verify on the 430 but I have been told this is the intended purpose of the second power input. The GRT units are diode isolated. The other thought is a good also, Thanks Tim Sent from my iPhone On Oct 6, 2010, at 9:04 AM, Jeff Page wrote: > > Tim, > > Before you wire it, I suggest you check that the 430W Aircraft Power 1 and Aircraft Power 2 are internally isolated in some way. I suspect (but do not know) that they are just connected together. > If so, then your clearance delivery switch will backfeed the entire Avionics Bus, which is not what you intend. > > Perhaps power the 430W Comm section, rather than the ICOM, since you can transfer frequencies from the airport data instead of manually entering them ? > > Jeff Page > Dream Aircraft Tundra #10 > > >> Time: 09:07:27 AM PST US >> From: "Tim Andres" >> Subject: AeroElectric-List: Z10-8 review >> >> I have my plan drawn out and posted to my web site. I would appreciate >> having this group look it over. There are notes on the page regarding design >> goals and a different way of feeding the Aux battery I'm considering. >> >> Tim Andres >> >> http://tinyurl.com/2c5kbzd > > > > > > ________________________________ Message 18 ____________________________________ Time: 09:57:14 AM PST US Subject: AeroElectric-List: Re: Radio Shack 3 row 15 pin d-Sub From: "rparigoris" After cutting off the ears, soldering the cases together and installing the wires, it seems these connectors will do the trick while living inside my control stick: http://www.europaowners.org/forums/gallery2.php?g2_itemId=83510 http://www.europaowners.org/forums/gallery2.php?g2_itemId=83516 http://www.europaowners.org/forums/gallery2.php?g2_itemId=84258 Ron Parigoris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=314936#314936 ________________________________ Message 19 ____________________________________ Time: 01:18:25 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: coil cord At 10:50 AM 10/6/2010, you wrote: >Looks good to me. The gauge is off but I just need to carry a small >50 mA current from a switch to a relay. Maybe 2 feet total. > >Beautiful, thank you! Just got home from the Post Office and had an inspiration. I've been using the I-Go universal automotive power adapters for some years. The product consists of a switch- mode power supply mounted in a cigar lighter module . . . Emacs! The appliance-end of the device mounts a "power tip" that not only mates with your appliance of choice, it communicates with the power supply on the other end to customize its output to be consistent with the appliance. When you pull the adapter off we see . . . Emacs! Given the highly customized nature of this connector pair and the huge production volumes, I doubt that they put 'extra' pins in the connector just for grins. but I could be wrong. I'm reluctant to cut my adapter up but you can get one from your local Radio Shack http://tinyurl.com/29984nq No doubt other electronics outlets sell them too. When you cut the connector off, leave a long enough pig-tail so that should you discover that the coil cord contains fewer than your needed 5 wires (or my best-guess of 6 wires) you'll at least be able to splice it back together and press it into service elsewhere. Another possible source is the "wall wart" box found at many thrift stores. I've often found wall-warts having ratings suitable to some task . . . then generally cost $1.00 or less. I've seen automotive power cords in these boxes too. One just MIGHT turn up an IGo cord. Option 3. Just checked Ebay and purchased a power cord for $4 including shipping. As soon as it gets here, I'll dissect the thing and report findings to the group. Bob . . . ________________________________ Message 20 ____________________________________ Time: 01:20:34 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Radio Shack 3 row 15 pin d-Sub At 11:54 AM 10/6/2010, you wrote: > > >After cutting off the ears, soldering the cases together and >installing the wires, it seems these connectors will do the trick >while living inside my control stick: > >http://www.europaowners.org/forums/gallery2.php?g2_itemId=83510 > >http://www.europaowners.org/forums/gallery2.php?g2_itemId=83516 > >http://www.europaowners.org/forums/gallery2.php?g2_itemId=84258 Nice work my friend. I've captured your pictures and plan to add them to the earlier article I published on modified connectors. Thanks for sharing. Bob . . . ________________________________ Message 21 ____________________________________ Time: 02:11:21 PM PST US Subject: AeroElectric-List: Re: Radio Shack 3 row 15 pin d-Sub From: "rparigoris" Hi Bob Thx. again for your advice. I will share two other connector mods, your ides perhaps with a twist or two. I needed to exit out of a 50 pin machined gold plated D-sub connector. There are slim pickings for 50 pin covers no less something small, light and user friendly (ability to tighten aft screw). I modified this connector using a thin stainless tube (McMaster Carr) JB KWIKed to the side of the cover to allow tightening of the aft stainless screw (heat shrink protection where wires will rest). I used stainless cap screws from McMaster with a patch of adhesive on it. Kinda like using suspenders and a belt, I also added a #3 star washer (#3 fits #4 screw better IMHO), and a plastic thin washer underneath to hold the screw captive: http://www.europaowners.org/forums/gallery2.php?g2_itemId=82017 http://www.europaowners.org/forums/gallery2.php?g2_itemId=82020 http://www.europaowners.org/forums/gallery2.php?g2_itemId=82023 http://www.europaowners.org/forums/gallery2.php?g2_itemId=82026 http://www.europaowners.org/forums/gallery2.php?g2_itemId=82032 http://www.europaowners.org/forums/gallery2.php?g2_itemId=82029 Another D-sub connector I made a trapezoid shaped bracket to use it as a bulkhead connector. As far as the cover, I had to thin a little so the stainless cap screw adhesive ended up being the perfect length. I used the thin plastic washers on the bottom to capture screw. I needed to turn the jackscrew standoffs a little to fit with bracket and plastic washer (aluminium hex) extra thickness: http://www.europaowners.org/forums/gallery2.php?g2_itemId=82280 http://www.europaowners.org/forums/gallery2.php?g2_itemId=82283 http://www.europaowners.org/forums/gallery2.php?g2_itemId=84179 Not quite sure if it falls in under a modification to a connector, but it is a modification to holding the wires that go to the connector. On my port lower panel insert there is not a real easy way to hold wires in place and allow install and removal. I am using a piece of carbon fiber with double heat shrink where it is trying to short the two legs of panel mount LEDs (CF conducts a little). Thus i am using the panel mount LEDs to stand off the piece of CF which I am tying wires to. I can't remember where i saw something similar, but pretty sure it was on Aeroelectric: See Lower port insert wiring 1 thru 5 near the bottom of page: http://www.europaowners.org/forums/gallery2.php?g2_itemId=27305&g2_page=2 Ron Parigoris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=314958#314958 ________________________________ Message 22 ____________________________________ Time: 03:49:04 PM PST US From: Kevin Boddicker Subject: Re: AeroElectric-List: Plane Power Alt. On Oct 6, 2010, at 10:32 AM, Robert L. Nuckolls, III wrote: > > > > At 07:50 AM 10/6/2010, you wrote: > > Yes, > I am using the basic Z-11, with a B&C over voltage/under voltage module wired to trip a 5A breaker. In case of an OV event the contactor in the B lead would open. Essentially I would have two OV systems. > > Why two ov systems? There is one built into my plane as it sits, using the module that I bought from B&C BC207-1 and AEC9034-1, And there is one built into the new plane power alt. I have the module that will open the 5A breaker if there is an OV event with my current ND alt. The module is also used to test an OV event, and indicates low voltage. Are you saying I should disconnect the OVM I got from B&C and just use the OV protection built into the Plane Power alt. > > Both triggered by a 5A breaker. Is there any harm or potential harm in this? > > No harm . . . but the rationale is mystifying. I don't know if I should remove the OVM I got from B&C, or leave it in place. If I leave it in place, I would have two sensors. The OVM from B&C and what ever Plane Power uses. I will attach a pic of the OVM. Hope it gets through. Kevin > Bob . . . > > > > > ________________________________ Message 23 ____________________________________ Time: 05:50:59 PM PST US Subject: Re: AeroElectric-List: coil cord From: Andy Hawes wow, if this is a typical response from this group, I am very grateful. Thanks very much Bob for your time here. I=B9ll definitely look into these options. Thanks again, Andy On 10/6/10 3:16 PM, "Robert L. Nuckolls, III" wrote: > At 10:50 AM 10/6/2010, you wrote: >> Looks good to me. The gauge is off but I just need to carry a small 50 mA >> current from a switch to a relay. Maybe 2 feet total. >> >> Beautiful, thank you! > > Just got home from the Post Office and had > an inspiration. I've been using the I-Go > universal automotive power adapters for > some years. The product consists of a switch- > mode power supply mounted in a cigar lighter > module . . . > > > > The appliance-end of the device mounts a "power tip" > that not only mates with your appliance of choice, it communicates > with the power supply on the other end to customize > its output to be consistent with the appliance. When you > pull the adapter off we see . . . > > > > Given the highly customized nature of this connector pair > and the huge production volumes, I doubt that they put > 'extra' pins in the connector just for grins. but I could > be wrong. I'm reluctant to cut my adapter up but you can > get one from your local Radio Shack > > http://tinyurl.com/29984nq > > No doubt other electronics outlets sell them too. When you > cut the connector off, leave a long enough pig-tail so that > should you discover that the coil cord contains fewer than > your needed 5 wires (or my best-guess of 6 wires) you'll > at least be able to splice it back together and press it > into service elsewhere. > > Another possible source is the "wall wart" box found > at many thrift stores. I've often found wall-warts having > ratings suitable to some task . . . then generally cost > $1.00 or less. I've seen automotive power cords in these > boxes too. One just MIGHT turn up an IGo cord. > > Option 3. Just checked Ebay and purchased a power cord > for $4 including shipping. As soon as it gets here, I'll > dissect the thing and report findings to the group. > > > Bob . . . ________________________________ Message 24 ____________________________________ Time: 05:57:44 PM PST US Subject: Re: AeroElectric-List: coil cord From: Andy Hawes As well, you got me thinking on doing a search for =B3coiled power cord=B2 and came across this site: http://www.philatron.com/NewCatalog/TAB7/Coiled_Cords_24-22Gauge.html Not sure on pricing, I=B9ll check tomorrow. Thanks again for the detailed research -- Andy On 10/6/10 3:16 PM, "Robert L. Nuckolls, III" wrote: > At 10:50 AM 10/6/2010, you wrote: >> Looks good to me. The gauge is off but I just need to carry a small 50 mA >> current from a switch to a relay. Maybe 2 feet total. >> >> Beautiful, thank you! > > Just got home from the Post Office and had > an inspiration. I've been using the I-Go > universal automotive power adapters for > some years. The product consists of a switch- > mode power supply mounted in a cigar lighter > module . . . > > > > The appliance-end of the device mounts a "power tip" > that not only mates with your appliance of choice, it communicates > with the power supply on the other end to customize > its output to be consistent with the appliance. When you > pull the adapter off we see . . . > > > > Given the highly customized nature of this connector pair > and the huge production volumes, I doubt that they put > 'extra' pins in the connector just for grins. but I could > be wrong. I'm reluctant to cut my adapter up but you can > get one from your local Radio Shack > > http://tinyurl.com/29984nq > > No doubt other electronics outlets sell them too. When you > cut the connector off, leave a long enough pig-tail so that > should you discover that the coil cord contains fewer than > your needed 5 wires (or my best-guess of 6 wires) you'll > at least be able to splice it back together and press it > into service elsewhere. > > Another possible source is the "wall wart" box found > at many thrift stores. I've often found wall-warts having > ratings suitable to some task . . . then generally cost > $1.00 or less. I've seen automotive power cords in these > boxes too. One just MIGHT turn up an IGo cord. > > Option 3. Just checked Ebay and purchased a power cord > for $4 including shipping. As soon as it gets here, I'll > dissect the thing and report findings to the group. > > > Bob . . . ________________________________ Message 25 ____________________________________ Time: 08:02:01 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Plane Power Alt. Yes, I am using the basic Z-11, with a B&C over voltage/under voltage module wired to trip a 5A breaker. In case of an OV event the contactor in the B lead would open. Essentially I would have two OV systems. Okay, since the PlanePower product is self contained and features ov protection I recommend you remove the previously installed system. I.e., install the PP alternator per manufacturer's instructions. There is one built into my plane as it sits, using the module that I bought from B&C BC207-1/AEC9034-1, And there is one built into the new plane power alt. I have the module that will open the 5A breaker if there is an OV event with my current ND alt. The module is also used to test an OV event, and indicates low voltage. Are you saying I should disconnect the OVM I got from B&C and just use the OV protection built into the Plane Power alt. The BC207/AEC9034 is a simple OV/LV annunciator and has no protective features. It was designed for very small PM alternator/battery systems common to the 2-cycle powered ultralights. In your case, the OV warning would NEVER be expected to operate because the ov protection system would shut the system down so fast that you'll never see an OV indication . . . only an LV indication after the alternator is shut down. The OVM from B&C and what ever Plane Power uses. I will attach a pic of the OVM. Hope it gets through. That's the legacy crowbar ov protection module produced first by AEC, then by B&C and now by both companies. Yes, take that unit out along with the associated b-lead contactor. 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.