---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 03/19/04: 31 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:40 AM - Re: EL lighting (Eric M. Jones) 2. 06:38 AM - Re: Re: EL lighting (richard dudley) 3. 06:40 AM - Icom wiring diagram () 4. 06:46 AM - Re: Re: EL lighting (Fiveonepw@aol.com) 5. 08:07 AM - Dancing Ammeter (Metcalfe, Lee, AIR) 6. 08:32 AM - starter relay testing (Bob Bittner) 7. 08:41 AM - (loflinj@comcast.net) 8. 08:56 AM - Re: starter relay testing (Dale Martin) 9. 09:01 AM - Re: Dancing Ammeter (Metcalfe, Lee, AIR) 10. 09:16 AM - Re: starter relay testing (Matt Prather) 11. 09:18 AM - Re: (Bruce Gray) 12. 09:23 AM - Re: starter relay testing (Bob Bittner) 13. 09:24 AM - Re: rocker switches (Carlos Sa) 14. 09:26 AM - Re: starter relay testing (Scott Bilinski) 15. 09:26 AM - Re: (Randy Pflanzer) 16. 09:43 AM - Re: Dancing Ammeter (Trampas) 17. 09:58 AM - Re: breakers? (thomas.a.dollmeyer@Cummins.com) 18. 10:20 AM - Re: Re: (John Schroeder) 19. 10:20 AM - Re: Icom wiring diagram (Jeff Orear) 20. 10:26 AM - Subject: EL lighting. (Jim Butcher) 21. 10:34 AM - Re: Dancing Ammeter (Rhett Westerman) 22. 10:47 AM - Re: Re: (Bruce Gray) 23. 01:06 PM - Re: starter relay testing (Benford2@aol.com) 24. 01:19 PM - Re: Re: EL lighting (Chad Robinson) 25. 02:36 PM - Re: (George Bass) 26. 03:03 PM - AeroElectric-List (Rino Lacombe) 27. 04:50 PM - Re: apology (George Bass) 28. 06:15 PM - Re: Re: apology (Chad Robinson) 29. 07:40 PM - Re: AeroElectric-List (Jeff Point) 30. 08:00 PM - Garmin 340 Audio panel question (N566u@aol.com) 31. 08:54 PM - Re: starter relay testing (Robert McCallum) ________________________________ Message 1 _____________________________________ Time: 05:40:35 AM PST US From: "Eric M. Jones" Subject: AeroElectric-List: RE: EL lighting --> AeroElectric-List message posted by: "Eric M. Jones" Question for EL Lighting users--- I have always presumed that inverters were electrically noisy and thus EL lighting might lead to some interference. Does anyone have experience with this? Regards, Eric M. Jones www.PerihelionDesign.com 113 Brentwood Drive Southbridge MA 01550-2705 Phone (508) 764-2072 Email: emjones@charter.net "Everything you've learned in school as "obvious" becomes less and less obvious as you begin to study the universe. For example, there are no solids in the universe. There's not even a suggestion of a solid. There are no absolute con- tinuums. There are no surfaces. There are no straight lines." - R. Buckminster Fuller ________________________________ Message 2 _____________________________________ Time: 06:38:18 AM PST US From: richard dudley Subject: Re: AeroElectric-List: RE: EL lighting --> AeroElectric-List message posted by: richard dudley Eric, I have installed EL lighting under my glareshield. Thuough I have not yet flown I have tested it with my two navcoms also installed. With squelch open, there is no noise from the EL. The power from the inverter is supposedly a 400 Hz square wave. Regards, Richard Dudley -6A paint prep Eric M. Jones wrote: >--> AeroElectric-List message posted by: "Eric M. Jones" > > Question for EL Lighting users--- > >I have always presumed that inverters were electrically noisy and thus EL >lighting might lead to some interference. > >Does anyone have experience with this? > >Regards, >Eric M. Jones >www.PerihelionDesign.com >113 Brentwood Drive >Southbridge MA 01550-2705 >Phone (508) 764-2072 >Email: emjones@charter.net > >"Everything you've learned in school as "obvious" becomes >less and less obvious as you begin to study the universe. >For example, there are no solids in the universe. There's >not even a suggestion of a solid. There are no absolute con- >tinuums. There are no surfaces. There are no straight lines." > > - R. Buckminster Fuller > > > > ________________________________ Message 3 _____________________________________ Time: 06:40:00 AM PST US Subject: AeroElectric-List: Icom wiring diagram From: --> AeroElectric-List message posted by: Hi All, I'm getting ready to wire an Icom A200 to a PS engineering PM3000, does anyone have a schematic whipped up for this instillation? Thought it might be worth asking. Thanks Eric ________________________________ Message 4 _____________________________________ Time: 06:46:56 AM PST US From: Fiveonepw@aol.com Subject: Re: AeroElectric-List: RE: EL lighting --> AeroElectric-List message posted by: Fiveonepw@aol.com In a message dated 3/19/04 7:41:33 AM Central Standard Time, emjones@charter.net writes: > I have always presumed that inverters were electrically noisy and thus EL > lighting might lead to some interference. I was told the same for using PWM for dimming- ain't heard nuthin' yet... Mark Phillips -6A FLYING! ________________________________ Message 5 _____________________________________ Time: 08:07:09 AM PST US Subject: AeroElectric-List: Dancing Ammeter From: "Metcalfe, Lee, AIR" --> AeroElectric-List message posted by: "Metcalfe, Lee, AIR" My flying Lancair 320 has 517 hrs. TT. Within the last few hours of flying, the ammeter has begun a rhythmic wiggle at about 1.5 cycles per second with about a 10 amp amplitude. Occasionally the amplitude will go full scale with no apparent triggering event. Adding load just moves the range of the wiggle further up the scale. The frequency of the wiggle is independent of engine RPM. It's the same at idle as at full tilt boogie. I have pulled the alternator (generic automotive type, externally regulated) and had it tested. No problems. I have checked, cleaned and tightened all connections in the alternator/regulator/battery circuits. I'm now down to either the regulator or the meter being bad. The meter is one of those combined ammeter/voltmeter jobbies where it normally shows amps and you push a button for volts. The ammeter is shunted from the B lead, which goes through a 35-amp breaker to the main bus. The voltage indication is rock steady and agrees with the digital voltage shown in my EDM-700. The battery (Odyssey PC925) seems to be being charged normally. The regulator is a generic automotive type and is the original installation (517 hrs.). It is mounted on the engine side of the firewall in a very difficult place to get to (I didn't build my plane). Changing it is going to be a major pain. That's why I wanted to get y'all's feedback before attacking the regulator. Any suggestions for further troubleshooting? I have a digital multimeter but don't know how to use it to diagnose this situation. Lee Metcalfe N320WH - Kansas City ________________________________ Message 6 _____________________________________ Time: 08:32:35 AM PST US Subject: AeroElectric-List: starter relay testing From: Bob Bittner 03/19/2004 10:32:17 AM, Serialize complete at 03/19/2004 10:32:17 AM --> AeroElectric-List message posted by: Bob Bittner I have a starter relay/solenoid from Aircraft Spruce, and I'm wondering if there's more to the these things than I thought. In a bench test, applying 12V from my battery to the front 2 small terminals yields no response. There is no continuity between these terminals. I wired it up as expected, and it doesn't do anything when switched on. It's not hooked to the starter motor, so on the output a 12V, 1A fan (for some load). . The reason I'm asking is because the first one I got from them had the same inoperative characteristics, and this one's a replacement. Shouldn't I be able to measure some resistance across the coil? For example, on the one they sent me for a master relay, there's 15ohms of resistance, which seems ok, but more draw than I'd like. Did I just get 2 bad ones, or am I missing something? Thanks. ________________________________ Message 7 _____________________________________ Time: 08:41:34 AM PST US From: loflinj@comcast.net --> AeroElectric-List message posted by: loflinj@comcast.net Hi all, I'm looking for a source of backlit engraved rocker switches. Only source I have found is from Lancair and they are a little $pendy at $30.00 a pop. I also found a few from Chief, but they don't have the particular wording I'm looking for. Thanks, -Jack ________________________________ Message 8 _____________________________________ Time: 08:56:45 AM PST US From: "Dale Martin" Subject: Re: AeroElectric-List: starter relay testing --> AeroElectric-List message posted by: "Dale Martin" Your doing it wrong..... I am sure Bob will respond.. Dale Martin Lewiston, ID LEZ-235 ----- Original Message ----- From: "Bob Bittner" Subject: AeroElectric-List: starter relay testing > --> AeroElectric-List message posted by: Bob Bittner > > I have a starter relay/solenoid from Aircraft Spruce, and I'm wondering if > there's more to the these things than I thought. In a bench test, > applying 12V from my battery to the front 2 small terminals yields no > response. There is no continuity between these terminals. I wired it up > as expected, and it doesn't do anything when switched on. It's not hooked > to the starter motor, so on the output a 12V, 1A fan (for some load). . > The reason I'm asking is because the first one I got from them had the > same inoperative characteristics, and this one's a replacement. Shouldn't > I be able to measure some resistance across the coil? For example, on the > one they sent me for a master relay, there's 15ohms of resistance, which > seems ok, but more draw than I'd like. Did I just get 2 bad ones, or am I > missing something? > Thanks. > > ________________________________ Message 9 _____________________________________ Time: 09:01:30 AM PST US Subject: RE: AeroElectric-List: Dancing Ammeter From: "Metcalfe, Lee, AIR" --> AeroElectric-List message posted by: "Metcalfe, Lee, AIR" I should have mentioned that I have tried isolating the various loads on the bus to see if one of them is responsible for the wiggle. The wiggle is there independent of what loads are on the bus and is even present with no loads (that I am aware of) on the bus. Lee ________________________________ Message 10 ____________________________________ Time: 09:16:07 AM PST US Subject: Re: AeroElectric-List: starter relay testing From: "Matt Prather" --> AeroElectric-List message posted by: "Matt Prather" Did you check for resistance between the each terminal and the case (ground)? Regards, Matt- N34RD > --> AeroElectric-List message posted by: Bob Bittner > > > I have a starter relay/solenoid from Aircraft Spruce, and I'm wondering > if there's more to the these things than I thought. In a bench test, > applying 12V from my battery to the front 2 small terminals yields no > response. There is no continuity between these terminals. I wired it up > as expected, and it doesn't do anything when switched on. It's not > hooked to the starter motor, so on the output a 12V, 1A fan (for some > load). . The reason I'm asking is because the first one I got from them > had the same inoperative characteristics, and this one's a replacement. > Shouldn't I be able to measure some resistance across the coil? For > example, on the one they sent me for a master relay, there's 15ohms of > resistance, which seems ok, but more draw than I'd like. Did I just get > 2 bad ones, or am I missing something? > Thanks. > > ________________________________ Message 11 ____________________________________ Time: 09:18:13 AM PST US From: "Bruce Gray" Subject: AeroElectric-List: RE: --> AeroElectric-List message posted by: "Bruce Gray" AML34 series from Honeywell, I bought mine from Peerless Electronics, $20 a pop, 10 week lead time. Had the engraving done by www.engravers.net. FMI, http://peerlesselectronics.com/ and http://content.honeywell.com/sensing/prodinfo/manual/catalog/c30035.pdf Bruce www.glasair.org -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of loflinj@comcast.net Subject: --> AeroElectric-List message posted by: loflinj@comcast.net Hi all, I'm looking for a source of backlit engraved rocker switches. Only source I have found is from Lancair and they are a little $pendy at $30.00 a pop. I also found a few from Chief, but they don't have the particular wording I'm looking for. Thanks, -Jack == == == == ________________________________ Message 12 ____________________________________ Time: 09:23:21 AM PST US Subject: Re: AeroElectric-List: starter relay testing From: Bob Bittner 03/19/2004 11:23:04 AM, Serialize complete at 03/19/2004 11:23:04 AM --> AeroElectric-List message posted by: Bob Bittner >Did you check for resistance between the each terminal and the case >(ground)? > > >> I have a starter relay/solenoid from Aircraft Spruce, and I'm wondering... There is continuity between the mounting bracket (ground) and the right terminal. There's a tag on the left terminal that says not to use this terminal if the original had only 3, so I'm assuming this is supposed to be connected to the big input terminal inside. It's not. Thanks. ________________________________ Message 13 ____________________________________ Time: 09:24:57 AM PST US From: Carlos Sa Subject: AeroElectric-List: Re: rocker switches --> AeroElectric-List message posted by: Carlos Sa You could try the following: www.cmsquick.com http://www.nkkswitches.com/switchcategory.asp?S3=2 or http://www.nkkswitches.com http://wesgarde.com/linecard.shtml http://www.engravers.net/main/ac_products.htm http://www.aircraftsimulators.com/products.html Good luck Carlos > I'm looking for a source of backlit engraved rocker switches. Only source I > have found is from Lancair and they are a little $pendy at $30.00 a pop. I > also found a few from Chief, but they don't have the particular wording I'm > looking for. ________________________________ Message 14 ____________________________________ Time: 09:26:24 AM PST US From: Scott Bilinski Subject: Re: AeroElectric-List: starter relay testing --> AeroElectric-List message posted by: Scott Bilinski One of those terminals is not used or does nothing...........if memory serves. At 08:56 AM 3/19/04 -0800, you wrote: >--> AeroElectric-List message posted by: "Dale Martin" > >Your doing it wrong..... > >I am sure Bob will respond.. > >Dale Martin >Lewiston, ID >LEZ-235 > >----- Original Message ----- >From: "Bob Bittner" >To: >Subject: AeroElectric-List: starter relay testing > > >> --> AeroElectric-List message posted by: Bob Bittner >> >> I have a starter relay/solenoid from Aircraft Spruce, and I'm wondering if >> there's more to the these things than I thought. In a bench test, >> applying 12V from my battery to the front 2 small terminals yields no >> response. There is no continuity between these terminals. I wired it up >> as expected, and it doesn't do anything when switched on. It's not hooked >> to the starter motor, so on the output a 12V, 1A fan (for some load). . >> The reason I'm asking is because the first one I got from them had the >> same inoperative characteristics, and this one's a replacement. Shouldn't >> I be able to measure some resistance across the coil? For example, on the >> one they sent me for a master relay, there's 15ohms of resistance, which >> seems ok, but more draw than I'd like. Did I just get 2 bad ones, or am I >> missing something? >> Thanks. >> >> > > Scott Bilinski Eng dept 305 Phone (858) 657-2536 Pager (858) 502-5190 ________________________________ Message 15 ____________________________________ Time: 09:26:28 AM PST US From: "Randy Pflanzer" Subject: AeroElectric-List: Re: --> AeroElectric-List message posted by: "Randy Pflanzer" You can order these from Pacific Coast Avionics for $40 apiece. Custom wording costs $10 extra. They are on Page 61 of their online catalog. http://www.pacific-coast-avionics.com/. I used them on my RV-6. Randy F1 Rocket http://f1rocket.home.comcast.net/ ----- Original Message ----- From: > --> AeroElectric-List message posted by: loflinj@comcast.net > > Hi all, > > I'm looking for a source of backlit engraved rocker switches. Only source I > have found is from Lancair and they are a little $pendy at $30.00 a pop. I > also found a few from Chief, but they don't have the particular wording I'm > looking for. > > Thanks, > > -Jack > > ________________________________ Message 16 ____________________________________ Time: 09:43:45 AM PST US From: "Trampas" Subject: RE: AeroElectric-List: Dancing Ammeter --> AeroElectric-List message posted by: "Trampas" I have an engine monitor connected to my car and I have noticed something similar. That is the current jumps. My variation is about 4 amps, I contributed the amount due to the lack of damping on the regulator's voltage sense pin. That is the regulator turns on, the voltage goes high, regulator turns off voltage goes low, and repeats. I only notice this effect when the battery is close to fully charged. Since your problem has not always been there I would suggest you check the ground on the regulator, the voltage sense lead and the grounds to alternator. If problems still exist try measuring the voltage across the current shunt using a multimeter to see if the current is really jumping. Regards, Trampas www.sterntech.com -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Metcalfe, Lee, AIR Subject: RE: AeroElectric-List: Dancing Ammeter --> AeroElectric-List message posted by: "Metcalfe, Lee, AIR" I should have mentioned that I have tried isolating the various loads on the bus to see if one of them is responsible for the wiggle. The wiggle is there independent of what loads are on the bus and is even present with no loads (that I am aware of) on the bus. Lee ________________________________ Message 17 ____________________________________ Time: 09:58:35 AM PST US From: thomas.a.dollmeyer@Cummins.com Subject: AeroElectric-List: Re: breakers? cidcn00015.cidc.cummins.com/G/Cummins(Release 5.0.11 |July 24, 2002) at 03/19/2004 01":OF986ABDB3.2AD5518B-ON05256E5C.0060A6BC-05256E5C.0062B91, Serialize complete at 03/19/2004 01:01:17.PM@matronics.com --> AeroElectric-List message posted by: thomas.a.dollmeyer@Cummins.com Troy, my electronic ignition is direct, no breaker. For power I have the alternator field on a breaker and the ground power on a switch/breaker. UPSAT calls for a breaker for the SL70R, and it is pulled during system checkout during install and during transponder/encoder calibration. They also require a 'manually pullable circuit breaker' for the two power lines to the CNX80. I'm not sure why, but I may yet discover a service procedure that uses them, so I followed along. TruTrak also asked for a pullable breaker on the autopilot, and since that adds an additional means for shutting it down, I put that breaker in as well. My 'breakerless' aircraft now has breakers for: alternator field; CNX80 Nav; CNX80 Com; Transponder; Autopilot and Ground Power(switch/breaker). Tom Dollmeyer Glasair SuperII FT ________________________________ Message 18 ____________________________________ Time: 10:20:36 AM PST US Subject: Re: AeroElectric-List: RE: From: John Schroeder --> AeroElectric-List message posted by: John Schroeder Bruce - Did that $20 each include the bezel and cover? Did they have to special order the can/holder combination you wanted? What was it and also the cost? These Honeywell pieces are still the best, but it all adds up when you put all the pieces together. Thanks John On Fri, 19 Mar 2004 12:18:04 -0500, Bruce Gray wrote: > --> AeroElectric-List message posted by: "Bruce Gray" > > AML34 series from Honeywell, I bought mine from Peerless Electronics, > $20 a pop, 10 week lead time. Had the engraving done by > www.engravers.net. > > FMI, http://peerlesselectronics.com/ and > http://content.honeywell.com/sensing/prodinfo/manual/catalog/c30035.pdf > > Bruce > www.glasair.org > > > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of > loflinj@comcast.net > To: aeroelectric-list@matronics.com > Subject: > > > --> AeroElectric-List message posted by: loflinj@comcast.net > > Hi all, > > I'm looking for a source of backlit engraved rocker switches. Only > source I > have found is from Lancair and they are a little $pendy at $30.00 a > pop. I > also found a few from Chief, but they don't have the particular wording > I'm > looking for. > > Thanks, > > -Jack > > > == > == > == > == > > -- ________________________________ Message 19 ____________________________________ Time: 10:20:36 AM PST US From: "Jeff Orear" Subject: Re: AeroElectric-List: Icom wiring diagram --> AeroElectric-List message posted by: "Jeff Orear" Hi Eric: I am in the process of wiring my A200 to a PS Engineering PMA 4000. I can share with you how I *think* I have it figured out. Email me off list if you would like to see my configuration Regards, Jeff Orear RV6A panel Peshtigo, WI ----- Original Message ----- From: Subject: AeroElectric-List: Icom wiring diagram > --> AeroElectric-List message posted by: > > Hi All, > > I'm getting ready to wire an Icom A200 to a PS engineering PM3000, does anyone have a schematic whipped up for this instillation? Thought it might be worth asking. > > Thanks > > Eric > > ________________________________ Message 20 ____________________________________ Time: 10:26:15 AM PST US From: "Jim Butcher" Subject: Subject: AeroElectric-List: EL lighting. --> AeroElectric-List message posted by: "Jim Butcher" You wrote I've just received a strip of EL tape and an inverter. Can anyone tell me how > I cut this, (scissors?), and then connect the cut piece to the inverter in addition > to the main section with its pigtail? Rob, You just cut the EL strip with scissors or exacto knife. You can cut holes of the material. Connect the two sides to the power source (its like a capacitor with luminenscent material as the dielectric) and it all should illuminate. You also should seal the cut edge since moisture will migrate and destroy the lamp. Clear scotch tape works ok. Jim Butcher Europa N241BW ________________________________ Message 21 ____________________________________ Time: 10:34:58 AM PST US From: "Rhett Westerman" Subject: RE: AeroElectric-List: Dancing Ammeter --> AeroElectric-List message posted by: "Rhett Westerman" Your problem is some added resistance between the main bus and the voltage regulator. Track through this circuit and locate the culprit. It should be at some connection point in between these two locations. best, Rhett -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Metcalfe, Lee, AIR Subject: AeroElectric-List: Dancing Ammeter --> AeroElectric-List message posted by: "Metcalfe, Lee, AIR" My flying Lancair 320 has 517 hrs. TT. Within the last few hours of flying, the ammeter has begun a rhythmic wiggle at about 1.5 cycles per second with about a 10 amp amplitude. Occasionally the amplitude will go full scale with no apparent triggering event. Adding load just moves the range of the wiggle further up the scale. The frequency of the wiggle is independent of engine RPM. It's the same at idle as at full tilt boogie. I have pulled the alternator (generic automotive type, externally regulated) and had it tested. No problems. I have checked, cleaned and tightened all connections in the alternator/regulator/battery circuits. I'm now down to either the regulator or the meter being bad. The meter is one of those combined ammeter/voltmeter jobbies where it normally shows amps and you push a button for volts. The ammeter is shunted from the B lead, which goes through a 35-amp breaker to the main bus. The voltage indication is rock steady and agrees with the digital voltage shown in my EDM-700. The battery (Odyssey PC925) seems to be being charged normally. The regulator is a generic automotive type and is the original installation (517 hrs.). It is mounted on the engine side of the firewall in a very difficult place to get to (I didn't build my plane). Changing it is going to be a major pain. That's why I wanted to get y'all's feedback before attacking the regulator. Any suggestions for further troubleshooting? I have a digital multimeter but don't know how to use it to diagnose this situation. Lee Metcalfe N320WH - Kansas City ________________________________ Message 22 ____________________________________ Time: 10:47:42 AM PST US From: "Bruce Gray" Subject: RE: AeroElectric-List: RE: --> AeroElectric-List message posted by: "Bruce Gray" My AML's (AML34FBE4AA01) were $12.57 for the whole thing - bezel, cap and 28v bulb. You will also need AML61 mounting strips if you're mounting through anything other than metal. But they're cheap. This purchase was made in 8/00 so prices may have gone up. Bruce www.glasair.org -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John Schroeder Subject: Re: AeroElectric-List: RE: --> AeroElectric-List message posted by: John Schroeder Bruce - Did that $20 each include the bezel and cover? Did they have to special order the can/holder combination you wanted? What was it and also the cost? These Honeywell pieces are still the best, but it all adds up when you put all the pieces together. Thanks John On Fri, 19 Mar 2004 12:18:04 -0500, Bruce Gray wrote: > --> AeroElectric-List message posted by: "Bruce Gray" > > AML34 series from Honeywell, I bought mine from Peerless Electronics, > $20 a pop, 10 week lead time. Had the engraving done by > www.engravers.net. > > FMI, http://peerlesselectronics.com/ and > http://content.honeywell.com/sensing/prodinfo/manual/catalog/c30035.pdf > > Bruce > www.glasair.org > > > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of > loflinj@comcast.net > To: aeroelectric-list@matronics.com > Subject: > > > --> AeroElectric-List message posted by: loflinj@comcast.net > > Hi all, > > I'm looking for a source of backlit engraved rocker switches. Only > source I > have found is from Lancair and they are a little $pendy at $30.00 a > pop. I > also found a few from Chief, but they don't have the particular wording > I'm > looking for. > > Thanks, > > -Jack > > > == > == > == > == > > -- == == == == ________________________________ Message 23 ____________________________________ Time: 01:06:43 PM PST US From: Benford2@aol.com Subject: Re: AeroElectric-List: starter relay testing --> AeroElectric-List message posted by: Benford2@aol.com In a message dated 3/19/2004 9:33:22 AM Mountain Standard Time, rbittner@us.ibm.com writes: > relay/solenoid from Aircraft Spruce, and I'm wondering if > there's more to the these things than I thought. In a bench test, > applying 12V from my battery to the front 2 small terminals yields no > response. There is no continuity between these terminals. I wired it up > as expected, and it doesn't do anything when switched on. It's not hooked > to the starter motor, so on the output a 12V, 1A fan (for some load). . > The reason I'm asking is because the first one I got from them had the > same inoperative characteristics, and this one's a replacement. Shouldn't > I be able to measure some resistance across the coil? For example, on the > one they sent me for a master relay, there's 15ohms of resistance, which > seems ok, but more draw than I'd like. Did I just get 2 bad ones, or am I > missing something? > Thanks. > > You did ground the body if it???? ________________________________ Message 24 ____________________________________ Time: 01:19:41 PM PST US From: Chad Robinson Subject: Re: AeroElectric-List: RE: EL lighting --> AeroElectric-List message posted by: Chad Robinson Eric M. Jones wrote: > --> AeroElectric-List message posted by: "Eric M. Jones" > > Question for EL Lighting users--- > > I have always presumed that inverters were electrically noisy and thus EL > lighting might lead to some interference. > > Does anyone have experience with this? EL inverters CAN be noisy but don't have to be. I have two, on in an MP3 player and one in a clock, that you can audibly HEAR if you hold it up to your ear. But I also have one on an LCD panel that is completely silent. EL panels use very little current (I have a night light advertised as 0.4W) and higher current conductors are bigger potential noise sources. A poor inverter design can also put back onto the power supply feed but since it's a single frequency you could use a choke or notch filter at that frequency if this happened to get rid of it. Quality varies. If your inverter is noisy just try another. Most aren't that expensive, and you could build one cheaper than you could fix a problem. Regards, Chad ________________________________ Message 25 ____________________________________ Time: 02:36:41 PM PST US From: "George Bass" Subject: AeroElectric-List: Re: --> AeroElectric-List message posted by: "George Bass" 1.) AML34 series from Honeywell, I bought mine from Peerless Electronics, $20 a pop, 10 week lead time. Had the engraving done by www.engravers.net. FMI, http://peerlesselectronics.com/ and http://content.honeywell.com/sensing/prodinfo/manual/catalog/c30035.pdf AML's (AML34FBE4AA01) were $12.57 for the whole thing - bezel, cap and 28v bulb. You will also need AML61 mounting strips if you're mounting through anything other than metal. But they're cheap. 2.) www.cmsquick.com http://www.nkkswitches.com/switchcategory.asp?S3=2 or, http://www.nkkswitches.com http://wesgarde.com/linecard.shtml http://www.engravers.net/main/ac_products.htm http://www.aircraftsimulators.com/products.html 3.) Electronic Technologies... www.electronictechnologies.net etech@ucnsb.net and had the engraving done up in New England 4.) Carling Technoligies switches L14E1 15A 12V 5.) Check out this Veloctiy XL's overhead switch panel: http://www.velocityxl.com/Electrical.htm#Chapter 13.3.4 - Switches and Circuit Protection 6.) Few manufacturers supply the full range of switching functions in rockers. Microswitch is one. Here's an exemplar switch w/functions like our 2-10 toggle switch: http://www.aeroelectric.com/temp/2tp12-10.pdf You can get clear and translucent operators that can be engraved and illuminated from the rear. These are popular with Lancair and Glasair builders. Expect to pay quite a bit for these and to have to special order some functions. Bob Nuckolls If this is not enough information, please let me know & I'll do a larger search on the 'net' for any other available items that might be more to your needs. George --- ________________________________ Message 26 ____________________________________ Time: 03:03:19 PM PST US From: "Rino Lacombe" Subject: AeroElectric-List: AeroElectric-List --> AeroElectric-List message posted by: "Rino Lacombe" Anyone know the Radio Shack # for the inductro used to filter noisy devices. I have a Turn Coordinator that has to be silenced Thanks Rino ________________________________ Message 27 ____________________________________ Time: 04:50:35 PM PST US From: "George Bass" Subject: AeroElectric-List: Re: apology --> AeroElectric-List message posted by: "George Bass" Sorry for that last post, as it was supposed to go to an individual and not the list. It is merely a compilation of other posts here that someone had asked me for. George --- ________________________________ Message 28 ____________________________________ Time: 06:15:37 PM PST US From: Chad Robinson Subject: Re: AeroElectric-List: Re: apology --> AeroElectric-List message posted by: Chad Robinson George Bass wrote: > --> AeroElectric-List message posted by: "George Bass" > > Sorry for that last post, as it was supposed > to go to an individual and not the list. > > It is merely a compilation of other posts here > that someone had asked me for. Don't apologize, George. =) You just let me rip out six messages from my "Saved" folder and replace them with a single, nicely condensed version! Regards, Chad ________________________________ Message 29 ____________________________________ Time: 07:40:38 PM PST US From: Jeff Point Subject: Re: AeroElectric-List: AeroElectric-List --> AeroElectric-List message posted by: Jeff Point 270-030. Here's a link to Bob's how-to. http://www.aeroelectric.com/articles/filter/filter.html Jeff Point Rino Lacombe wrote: >--> AeroElectric-List message posted by: "Rino Lacombe" > >Anyone know the Radio Shack # for the inductro used to filter noisy devices. >I have a Turn Coordinator that has to be silenced > >Thanks > >Rino > > > > ________________________________ Message 30 ____________________________________ Time: 08:00:01 PM PST US From: N566u@aol.com Subject: AeroElectric-List: Garmin 340 Audio panel question --> AeroElectric-List message posted by: N566u@aol.com Hi Bob Hope you can help me. I am in the final stages of putting my RV 8A together, and today I attached my left wing to the fuselage. I ran the RG 400 cable from the marker beacon antenna in the wing tip to the rear of the panel and discovered that the audio panel (GMA 340) which has a marker beacon receiver, has no co-ax connector for the antenna. I checked the diagram for the two plugs and found P1 lists pin 1 and 2 as the inputs for the marker beacon antenna. My question is, how do I connect the RG 400 to the D Sub plug? Ron Smith N566U Rv-8A getting close to the end! ________________________________ Message 31 ____________________________________ Time: 08:54:22 PM PST US From: Robert McCallum Subject: Re: AeroElectric-List: starter relay testing --> AeroElectric-List message posted by: Robert McCallum Hi Bob ; I'm afraid that, yes, you're missing something and probably didn't get any "bad ones". Most starter solenoids have two "big" terminals which carry the heavy battery current to the starter motor. One goes to the battery (or battery contactor) the other goes to the starter. It doesn't normally matter which is which, they are interchangeable. Many also have two "small" terminals as is the case with the one you describe. Many times the ones with two small terminals are automotive starter solenoids. One of the small terminals is connected to the solenoid winding while the other end of the winding is almost always connected to ground. (in other words the "frame" of the solenoid) In order to energize the solenoid you must connect power between the correct small terminal and ground of the solenoid. (its frame) The other small terminal is used in the automotive application to bypass the ignition ballast resistor in order to increase spark intensity for starting. In an aircraft application this terminal is normally not used , but could, if desired, be employed to power a "starter engaged" light. It will become "live" when the solenoid is engaged. In starter solenoids with only one small terminal the other side of the winding is also grounded to the solenoid frame and thus the frame becomes one side of the electrical circuit in these types also. You can experiment safely to determine which is the "correct" small terminal by grounding the solenoid frame to your negative battery terminal and then connecting the positive battery terminal to one of the small terminals. The correct one will cause the solenoid to engage with an audible snap, the incorrect one will do nothing. The fan motor "load" you describe will "test" the large contacts for you as you intended. You can measure the coil resistance with your ohm meter but the coil is connected between one of the small terminals and ground not between the two small terminals. The test results you describe sound correct, the results you are getting are exactly as they should be, and I suspect your solenoid is probably working perfectly when properly connected. Bob McC Bob Bittner wrote: >--> AeroElectric-List message posted by: Bob Bittner > >I have a starter relay/solenoid from Aircraft Spruce, and I'm wondering if >there's more to the these things than I thought. In a bench test, >applying 12V from my battery to the front 2 small terminals yields no >response. There is no continuity between these terminals. I wired it up >as expected, and it doesn't do anything when switched on. It's not hooked >to the starter motor, so on the output a 12V, 1A fan (for some load). . >The reason I'm asking is because the first one I got from them had the >same inoperative characteristics, and this one's a replacement. Shouldn't >I be able to measure some resistance across the coil? For example, on the >one they sent me for a master relay, there's 15ohms of resistance, which >seems ok, but more draw than I'd like. Did I just get 2 bad ones, or am I >missing something? >Thanks. > > > >