---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 02/10/03: 17 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:14 AM - Re: Best LED color for preserving night vision (John Rourke) 2. 07:31 AM - Re: Fuse reccomendation (Robert L. Nuckolls, III) 3. 07:33 AM - Order processing system on the fritz (Robert L. Nuckolls, III) 4. 07:44 AM - Autocad LT (N823ms@aol.com) 5. 09:11 AM - Re: Autocad LT (Robert L. Nuckolls, III) 6. 09:29 AM - Re: Re: Facet Electric fuel pump ? (Robert L. Nuckolls, III) 7. 09:34 AM - Re: EXPBUS (Robert L. Nuckolls, III) 8. 09:38 AM - Re: ABMM (Robert L. Nuckolls, III) 9. 11:17 AM - parallel resistor for LED used with LR-3? (czechsix@juno.com) 10. 11:48 AM - Lonestar Mag Filter - Success (Matt Prather) 11. 12:00 PM - Re: Best LED color for preserving night (Mark Steitle) 12. 04:31 PM - Garmin 196 (David.vonLinsowe) 13. 04:51 PM - Re: parallel resistor for LED used with (Robert L. Nuckolls, III) 14. 05:41 PM - Re: Re: Facet Electric fuel pump ? (kc) 15. 06:02 PM - Garmin 196 (Benford2@aol.com) 16. 08:03 PM - Starter solenoid (Michel Therrien) 17. 10:43 PM - Re: Re: Facet Electric fuel pump ? (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 06:14:19 AM PST US From: John Rourke Subject: Re: AeroElectric-List: Best LED color for preserving night vision --> AeroElectric-List message posted by: John Rourke I'm checking... I can't find my receipt, and this link isn't where I bought it from, but it looks like the same thing and I think has the same part number - but I didn't pay as much for it (and I know there were several models with various combinations of color/quantity of LEDs): http://www.cetsolar.com/3ledcabin.htm I'll look for the receipt when I get back to the hangar next week - but in any event, I think I'll end up modifying it so much (or destroying it in the process) that I should probably just make my own - all I really need is the swivel mount (gooseneck was the wrong word) -John R. John Schroeder wrote: > --> AeroElectric-List message posted by: John Schroeder > > John R. > > Where did you get the 6 LED gooseneck light? > > Thanks, > > John > > >>I bought one of those LED gooseneck lights with 6 LEDs in it > > > > > > > > > ________________________________ Message 2 _____________________________________ Time: 07:31:14 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Fuse reccomendation --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 04:33 PM 2/9/2003 -0600, you wrote: >--> AeroElectric-List message posted by: "Sam Hoskins" > > >Ok, I see that. I was already considering a fuselink, but some or your >writings (page 10-4)seemed to discourage them in the current ranges we are >talking about here. Re-reading it, I see you addressed PM alternators. > >While I'm looking at Z-16 - what is the purpose of the 22AWG fuselink in >series with the 5a breaker? Isn't that redundent redundent? Fuseblock (and bus) may be mounted somewhat remotely from the panel and the 5A field breaker. If you EXTEND the bus with a wire up to the breaker, it should be protected. If you use a FUSE in the fuse block, then because of the much faster response time of a fuse, a 15A fuse might open faster than a 5A breaker . . . so we use a fusible link with a time constant that is greater than a breaker to protect that wire segment. Bob . . . ________________________________ Message 3 _____________________________________ Time: 07:33:09 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Order processing system on the fritz --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" The website's order-form program was down from February 1 through February 9. If you placed an order within this interval and received a copy of it via your e-mail, check the serial number of the order in the subject line of the echo. We've lost serials 870 through 921. If your order fell within this group -OR- if you placed and order and did NOT receive an e-mail copy, please do us the kindness of re-entering your order now. If you have any questions, please call Bob at 316.685.8617 for AEC orders or Todd at 316.283.8000 for B&C orders. Ya gotta love these computers . . . otherwise we couldn't put up with them! Bob . . . |-------------------------------------------------------| | The man who does not read good books has no advantage | | over the man who cannot read them. | | - Mark Twain | |-------------------------------------------------------| ________________________________ Message 4 _____________________________________ Time: 07:44:19 AM PST US From: N823ms@aol.com Subject: AeroElectric-List: Autocad LT --> AeroElectric-List message posted by: N823ms@aol.com Bob: Asked my son about the Autocad LT at the bookstore of Ole Miss. If you go to JourneyED.Com, you will see a list of AutoCAD's. Which one are you talking about? There are a few around 150.00. Thanks, Ed Silvanic N823MS@aol.com ________________________________ Message 5 _____________________________________ Time: 09:11:37 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Autocad LT --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 10:43 AM 2/10/2003 -0500, you wrote: >--> AeroElectric-List message posted by: N823ms@aol.com > >Bob: > > Asked my son about the Autocad LT at the bookstore of Ole Miss. If >you go to JourneyED.Com, you will see a list of AutoCAD's. Which one are you >talking about? There are a few around 150.00. > >Thanks, > >Ed Silvanic >N823MS@aol.com Autocad LT 2002 for $149.98 would be my suggestion. It is "light" in name only . . . VERY powerful program. Bob . . . ________________________________ Message 6 _____________________________________ Time: 09:29:09 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Facet Electric fuel pump ? --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 06:10 PM 2/6/2003 +0000, you wrote: >--> AeroElectric-List message posted by: czechsix@juno.com > >Bill, I asked this question to Craig Weber, Facet's engineering rep, a >while back and the answer for the pump Vans sells (model # 40108) is 1.4 >amps. I went with the "beer can" style pump instead on my RV, not because >it draws less current (1 A) but because I like the inlet filter screen and >it also fit in the wingroot where I wanted to mount it. > >--Mark Navratil >Cedar Rapids, Iowa >RV-8A N2D firewall forward.... Does anyone have a Facet pump they could send me for some REAL energy measurements? I'd like to set one up to pump a fix pressure head and put a data acquisition system on it to plot the current curve (ya can't put a simple ammeter in series with a critter that pulses) . . . I'd really like to get some good data on one. Bob . . . ________________________________ Message 7 _____________________________________ Time: 09:34:38 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: EXPBUS --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 10:38 AM 2/6/2003 -0500, you wrote: >--> AeroElectric-List message posted by: CBFLESHREN@aol.com > >In a message dated 2/5/2003 4:20:50 PM Eastern Standard Time, >owner-aeroelectric-list-server@matronics.com writes: > > > Still, I'm leaning towards the EXPBUS - as it must be the simplest and most > > well arranged system for the homebuilder. So - to all who has been there, > > done that: what's your experience/advice?? If for no other reasons: (1) The EXPbus may or may not have all the circuit features you need. What you see is what you get for now and in the future. (2) The EXPbus is warmed-over 1960's certifie-iron architecture. (3) For what the EXPbus costs, we can buy all the circuit protection, switches, terminals, wire, contactors and installation supplies to do any of the Z-figures or a variation thereof) and have money left over. Bob . . . ________________________________ Message 8 _____________________________________ Time: 09:38:23 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: ABMM --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 09:51 PM 2/3/2003 -0600, you wrote: >--> AeroElectric-List message posted by: "Tom Parks" > >Bob! > >If I wire the switch per the terminal number sequence shown in Fig 11-11 >of Aeroconnection, it works as advertised regarding closing the contactor >in the bat and alt position. Figure 7 of the ABMM schematic shows >a (2-10) switch terminals only. The (2-10) switch terminals shown in the >notes section of Figure 7 indicates a S700 (2-10) switch, mounted keyway >up. I'll use the terminal layout shown in Fig 11-11 for all (2-10) >switches (obtained from B&C) for my aircraft wiring. See http://www.aeroelectric.com/articles/Carling_Micro/Carling_Micro.pdf Thanks for bringing this to my attention . . . ________________________________ Message 9 _____________________________________ Time: 11:17:25 AM PST US Subject: AeroElectric-List: parallel resistor for LED used with LR-3? From: czechsix@juno.com --> AeroElectric-List message posted by: czechsix@juno.com Bob, I found in the archives a reference where you recommended a 220 ohm resistor to be used in parallel with an LED when used to replace the incandescent bulb in the LR-3 Low voltage warning circuit. Then I also have a sketch you posted for someone not too long ago showing the same thing only in this case you recommend a 470 ohm resistor for the parallel resistor. Is it 220, 470, or does it matter? I don't know how much current the LR-3 sinks in the OFF state so I'm not sure how to calculate what it should be. For what it's worth, Greg Toman suggests a 1K resistor to be used with his engine monitor warning light if replaced with an LED, but his circuit may not sink the same amount of current as the LR-3....so maybe that's a moot point. Thanks, --Mark Navratil Cedar Rapids, Iowa RV-8A N2D firewall forward.... ________________________________ Message 10 ____________________________________ Time: 11:48:12 AM PST US Subject: AeroElectric-List: Lonestar Mag Filter - Success From: "Matt Prather" --> AeroElectric-List message posted by: "Matt Prather" After some struggle to quiet the original magneto ignition system on my VariEze, I have some sucess to report. I replaced one of the mags with an old-style LSE CDI ignition, and I had the remaining mag rebuilt (new coil, points, condensor, timing adjusted, etc). There was still quite a bit of crackle showing up on my comm radio. The LSE ignition is very quiet, but it bothered me that the mag was only slightly better after the rebuild than before, and 10x worse than the LSE. Out of a small amount of desperation, I ordered one of the Lonestar Mag Filters from 'Spruce, and installed it over the weekend. I am happy to report that it made a huge difference in the system. While the mag is still noisier than the LSE, it only takes about 1/2 available squelch to cover it up. Interestingly, (to me) even when I turn the squelch down, the amplitude of the noise is much less than before. Lonestar touts the effectiveness of the coaxial design of their filter, and from my recent experience I can't argue. I didn't try any other style of cap, however. I suspect that part of my difficulties came from the VE not providing any shielding that an Al airplane might enjoy. Matt (Quiet and Happy) Prather N34RD ________________________________ Message 11 ____________________________________ Time: 12:00:09 PM PST US From: Mark Steitle Subject: Re: AeroElectric-List: Best LED color for preserving night vision --> AeroElectric-List message posted by: Mark Steitle The LED Light.com has a variety of led fixtures. One looks like the one referenced by John R. See http://www.theledlight.com/interior.html Mark S. At 08:08 AM 2/10/2003 -0600, you wrote: >--> AeroElectric-List message posted by: John Rourke > > >I'm checking... I can't find my receipt, and this link isn't where I >bought it from, but it looks like the same thing and I think has the >same part number - >-John R. > > >John Schroeder wrote: > > --> AeroElectric-List message posted by: John Schroeder > > > > > John R. > > > > Where did you get the 6 LED gooseneck light? > > > > Thanks, > > > > John > > > > > >>I bought one of those LED gooseneck lights with 6 LEDs in it > > > > > > > > > > > > > > > > > > > > ________________________________ Message 12 ____________________________________ Time: 04:31:27 PM PST US Subject: AeroElectric-List: Garmin 196 From: "David.vonLinsowe" --> AeroElectric-List message posted by: "David.vonLinsowe" I'm toying with the idea of panel mounting a Garmin 196. Has anyone used one at night? How good is the visibility/readability of the display at night? Thanks, Dave RV-6 ________________________________ Message 13 ____________________________________ Time: 04:51:48 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: parallel resistor for LED used with LR-3? --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 07:15 PM 2/10/2003 +0000, you wrote: >--> AeroElectric-List message posted by: czechsix@juno.com > >Bob, > >I found in the archives a reference where you recommended a 220 ohm >resistor to be used in parallel with an LED when used to replace the >incandescent bulb in the LR-3 Low voltage warning circuit. Then I also >have a sketch you posted for someone not too long ago showing the same >thing only in this case you recommend a 470 ohm resistor for the parallel >resistor. 470 ohm series resistance will give you about 21 mA of lamp current. 220 raises it to 45 mA. The high intensity red lamps I use really get your attention at 45 mA! >Is it 220, 470, or does it matter? I don't know how much current the LR-3 >sinks in the OFF state so I'm not sure how to calculate what it should be. The LR-3 pulls down at about 2 mA in the off state. Putting a 220 ohm resistor across the LED and then a 220-470 ohm resistor in series with the lamp/led combo will get it lit up in good shape. You need the 220 across the lamp to keep it dark while off-state leakage is present. >For what it's worth, Greg Toman suggests a 1K resistor to be used with his >engine monitor warning light if replaced with an LED, but his circuit may >not sink the same amount of current as the LR-3....so maybe that's a moot >point. This would give you about 10 mA on most lamps. This will get you quite a bit of light too . . . Bob . . . |-------------------------------------------------------| | The man who does not read good books has no advantage | | over the man who cannot read them. | | - Mark Twain | |-------------------------------------------------------| ________________________________ Message 14 ____________________________________ Time: 05:41:35 PM PST US From: "kc" Subject: Re: AeroElectric-List: Re: Facet Electric fuel pump ? --> AeroElectric-List message posted by: "kc" I have a new Facet #40108 that I won't need for the next month or two if that will help. ----- Original Message ----- From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Facet Electric fuel pump ? > --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" > > At 06:10 PM 2/6/2003 +0000, you wrote: > >--> AeroElectric-List message posted by: czechsix@juno.com > > > >Bill, I asked this question to Craig Weber, Facet's engineering rep, a > >while back and the answer for the pump Vans sells (model # 40108) is 1.4 > >amps. I went with the "beer can" style pump instead on my RV, not because > >it draws less current (1 A) but because I like the inlet filter screen and > >it also fit in the wingroot where I wanted to mount it. > > > >--Mark Navratil > >Cedar Rapids, Iowa > >RV-8A N2D firewall forward.... > > Does anyone have a Facet pump they could send me for some > REAL energy measurements? I'd like to set one up to pump > a fix pressure head and put a data acquisition system on > it to plot the current curve (ya can't put a simple ammeter > in series with a critter that pulses) . . . > > I'd really like to get some good data on one. > > Bob . . . > > ________________________________ Message 15 ____________________________________ Time: 06:02:44 PM PST US From: Benford2@aol.com Subject: AeroElectric-List: Garmin 196 --> AeroElectric-List message posted by: Benford2@aol.com The lighting is PERFECT !!!!! It still amazes me how damn smart and accurate that little box can be. Without a doubt the best 890.00$ I ever spent.Now, if they would make a bigger display I would get rid of my King KMD150 and make the 196 center of attention. ________________________________ Message 16 ____________________________________ Time: 08:03:29 PM PST US From: Michel Therrien Subject: AeroElectric-List: Starter solenoid --> AeroElectric-List message posted by: Michel Therrien Hello Bob and friends, There's nothing better than a simple experiment to lighten up. Today, I wanted to know how much current my starter solenoid was draining... I remember reading Bob's article, but I suppose I did not understand it and decided not to use an external starter contactor. Well, I connected a positive 12V to the solenoid tab of my starter and the fuse from my battery pack blew (a 15A fuse). I replaced it with a 20A fuse and it blew after a few seconds... wow. What's happening? I thought that the solenoid needed only 8 amps or so. Bob's article on starter solenoid explains that very well. There are probably two windings on the solenoid, one of them connected to the contactor on the motor side. So, initially, the solenoid can draw quite a bit of current, but that second coil becomes inactive when it receives the 12V from the contactor side. At that time the demand for current from the solenoid would get lower. In my case, I did not connect 12V to the contactor side of the starter (the bolt). So, It was always demanding the high current. Now I understand that peak current thing Bob explains and I can see how it would make a switch work harder... I modified my drawing to include a starter contactor. :-) Michel ===== ---------------------------- Michel Therrien CH601-HD http://mthobby.pcperfect.com/ch601 http://www.zenithair.com/bldrlist/profiles/mthobby http://pages.infinit.net/mthobby ________________________________ Message 17 ____________________________________ Time: 10:43:17 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Facet Electric fuel pump ? --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 06:33 PM 2/10/2003 -0700, you wrote: >--> AeroElectric-List message posted by: "kc" > >I have a new Facet #40108 that I won't need for the next month or two if >that will help. I believe I have one coming already. Thanks! Watch for data to be published as soon as I can get it gathered. Bob . . .