---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 08/17/10: 21 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:50 AM - Re: Tempermental KT-76A (Tim Andres) 2. 08:09 AM - Turn co-ordinator power plug (JOHN TIPTON) 3. 08:18 AM - Re: Aeroflash power supply (Robert L. Nuckolls, III) 4. 08:52 AM - whizzo box dual power wires (woxofswa) 5. 09:23 AM - Re: 9024 module lights, labeling (Robert L. Nuckolls, III) 6. 09:38 AM - Re: Tempermental KT-76A (Bill Hibbing) 7. 09:42 AM - Fw: Tempermental KT-76A (Bill Hibbing) 8. 10:20 AM - Re: Tempermental KT-76A (alexandru Stuparu) 9. 10:20 AM - Re: whizzo box dual power wires (Tim Andres) 10. 11:09 AM - Re: Turn co-ordinator power plug (Robert L. Nuckolls, III) 11. 11:12 AM - Re: whizzo box dual power wires (Robert L. Nuckolls, III) 12. 11:32 AM - Re: Turn co-ordinator power plug (JOHN TIPTON) 13. 01:08 PM - Who sells 26 gage wire (Geoff Heap) 14. 01:40 PM - Re: Who sells 26 gage wire () 15. 01:41 PM - Re: Who sells 26 gage wire (Tom Hanaway) 16. 01:52 PM - Re: Who sells 26 gage wire (Gig Giacona) 17. 04:56 PM - Re: Who sells 26 gage wire (Robert L. Nuckolls, III) 18. 04:56 PM - Re: Tempermental KT-76A (Robert L. Nuckolls, III) 19. 04:56 PM - Re: Re: Who sells 26 gage wire (Robert L. Nuckolls, III) 20. 05:50 PM - Re: Who sells 26 gage wire (Rob Kochman) 21. 07:51 PM - Re: 9024 module lights, labeling (jonlaury) ________________________________ Message 1 _____________________________________ Time: 07:50:38 AM PST US From: "Tim Andres" Subject: RE: AeroElectric-List: Tempermental KT-76A In my limited experience, the tray connector gives a lot of trouble. If it is an older unit especially, try removing and inserting it or just applying pressure to the face and see if it starts working. If so I'd suggest getting a new connector. Tim _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Gregory Clawson Sent: Monday, August 16, 2010 8:46 PM Subject: AeroElectric-List: Tempermental KT-76A I am hoping for some guidance regarding a capricious KT-76A transponder. It works normally for a while, and then the Mode C cuts out. I am using a Dynon D-100 for the altitude encoder, then Dynon's grey-code converter to send the signal to the transponder. All the physical connections are sound, and the Dynon components are pretty robust. Any suggestions on where I should start trouble-shooting before I call the avionics shop guys out to the plane? Thanks Checked by AVG - www.avg.com 11:35:00 ________________________________ Message 2 _____________________________________ Time: 08:09:41 AM PST US From: "JOHN TIPTON" Subject: AeroElectric-List: Turn co-ordinator power plug Hi Guys Where is the best place to obtain a replacement 3 pin power plug for a standard electric 'Turn Co-ordinator' Regards - John ________________________________ Message 3 _____________________________________ Time: 08:18:11 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Aeroflash power supply At 11:38 AM 8/16/2010, you wrote: > >Did you mean C5 rather than C6? Yes, that's a typo. In the schematic I published, C3 is the flash-tube energy storage capacitor and C5 is energy source for generating a trigger spike. Bob . . . ________________________________ Message 4 _____________________________________ Time: 08:52:58 AM PST US Subject: AeroElectric-List: whizzo box dual power wires From: "woxofswa" In the case of avionics that run dual power wires (supposedly to ease load in each wire), is it okay to terminate the two wires into a single connector to attach to c/b or should each have its own connector? Thanks in advance. -------- Myron Nelson Mesa, AZ Emp completed, QB wings completed, legacy build fuse in progress Read this topic online here: http://forums.matronics.com/viewtopic.php?p=309120#309120 ________________________________ Message 5 _____________________________________ Time: 09:23:44 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: 9024 module lights, labeling At 08:33 PM 8/16/2010, you wrote: > >Group, > >I am labeling the panel that will contain the aux alternator switch >and the aux alternator will most likely be controlled by a 9024. Yes, a single 9024 configured for OV protection combined with a relay watches the bus voltage and latches a relay to remove field power on an OV condition. It must be cycled OFF/ON to reset. > The 9024 low voltage function will power a flashing LED. As the > 9024 latches open in an over voltage event (triggering the LV LED) > and requires removal of power to reset, it seems that adequate > notice of OV power interruption would be given by the flashing LV LED No, when configured for LV monitoring, the LED flashes ONLY while the monitored voltage is less than 13 volts. The light goes out by itself if the voltage rises after an LV event. >So is there any reason to have an OV test switch, or OV indicator light? No, I've considered a press to test on the ov modules but they're so reliable that I've not reached the 'tipping point' for adding that feature. Even in the generator controllers for the big-guys, hitting the "test" switch emulates a lot of ov protection shutdown . . . but does not proof the system's calibration. I AM considering changing the relay-driven OV protection to use a DE-energized relay to turn the alternator off. Since the relay is the most vulnerable component of the system, it seems like a good idea to have a broken coil wire annunciated by failure to bring an alternator on line. The converse philosophy increases risks for an un-annunicated latent failure with no means for pre-flight testing. That's the premise unders which the quest for the elegant design is conducted. Minimum parts and risk while maximizing performance. If your ov system is functioning right, an OV WARN light will illuminate one time for a few tens of milliseconds. If you use a relay that is energized to shut down an offending system, then one COULD put an OV TRIP annunciator in parallel with the relay coil. That way, if you DO get an LV warning, you'll have additional information that speaks to root cause . . . but it doesn't help you much in flying the airplane. Bob . . . ________________________________ Message 6 _____________________________________ Time: 09:38:33 AM PST US From: "Bill Hibbing" Subject: Re: AeroElectric-List: Tempermental KT-76A I'll 2nd Tim's view. I had a KT-76A that did the same thing and I found one of the fingers in the tray connector was slightly bent and was the cause. I replaced that particular spring finger in the tray connector and had no further problem with the transponder. Cost...less than a buck for a new spring finger from my avionics shop. This was one of those "pull your hair out" problems as it was really difficult to see the bend when you looked at the back of the tray with a flashlight but when I looked closely I could see that one spring finger didn't look quite right. Good luck. Bill Glasair SIIS-FT ----- Original Message ----- From: Gregory Clawson To: aeroelectric-list@matronics.com Sent: Monday, August 16, 2010 10:46 PM Subject: AeroElectric-List: Tempermental KT-76A I am hoping for some guidance regarding a capricious KT-76A transponder. It works normally for a while, and then the Mode C cuts out. I am using a Dynon D-100 for the altitude encoder, then Dynon's grey-code converter to send the signal to the transponder. All the physical connections are sound, and the Dynon components are pretty robust. Any suggestions on where I should start trouble-shooting before I call the avionics shop guys out to the plane? Thanks ------------------------------------------------------------------------- ----- Checked by AVG - www.avg.com 08/16/10 13:35:00 ________________________________ Message 7 _____________________________________ Time: 09:42:31 AM PST US From: "Bill Hibbing" Subject: Fw: AeroElectric-List: Tempermental KT-76A ----- Original Message ----- From: Bill Hibbing Sent: Tuesday, August 17, 2010 11:17 AM Subject: Re: AeroElectric-List: Tempermental KT-76A I'll 2nd Tim's view. I had a KT-76A that did the same thing and I found one of the fingers in the tray connector was slightly bent and was the cause. I replaced that particular spring finger in the tray connector and had no further problem with the transponder. Cost...less than a buck for a new spring finger from my avionics shop. This was one of those "pull your hair out" problems as it was really difficult to see the bend when you looked at the back of the tray with a flashlight but when I looked closely I could see that one spring finger didn't look quite right. Good luck. Bill Glasair SIIS-FT ----- Original Message ----- From: Gregory Clawson To: aeroelectric-list@matronics.com Sent: Monday, August 16, 2010 10:46 PM Subject: AeroElectric-List: Tempermental KT-76A I am hoping for some guidance regarding a capricious KT-76A transponder. It works normally for a while, and then the Mode C cuts out. I am using a Dynon D-100 for the altitude encoder, then Dynon's grey-code converter to send the signal to the transponder. All the physical connections are sound, and the Dynon components are pretty robust. Any suggestions on where I should start trouble-shooting before I call the avionics shop guys out to the plane? Thanks ------------------------------------------------------------------------- ----- Checked by AVG - www.avg.com 08/16/10 13:35:00 ________________________________ Message 8 _____________________________________ Time: 10:20:15 AM PST US From: alexandru Stuparu Subject: Re: AeroElectric-List: Tempermental KT-76A how can i unsubscribe to this subscription?????? it s urgent... Stuparu A. +40.724.53.60.70 ________________________________ From: Bill Hibbing Sent: Tue, August 17, 2010 7:17:10 PM Subject: Re: AeroElectric-List: Tempermental KT-76A I'll 2nd Tim's view. I had a KT-76A that did the same thing and I found one of the fingers in the tray connector was slightly bent and was the cause. I replaced that particular spring finger in the tray connector and had no further problem with the transponder. Cost...less than a buck for a new spring finger from my avionics shop. This was one of those "pull your hair out" problems as it was really difficult to see the bend when you looked at the back of the tray with a flashlight but when I looked closely I could see that one spring finger didn't look quite right. Good luck. Bill Glasair SIIS-FT ----- Original Message ----- >From: Gregory Clawson >To: aeroelectric-list@matronics.com >Sent: Monday, August 16, 2010 10:46 PM >Subject: AeroElectric-List: Tempermental KT-76A > > >I am hoping for some guidance regarding a capricious KT-76A transponder. It >works normally for a while, and then the Mode C cuts out. I am using a Dynon >D-100 for the altitude encoder, then Dynon's grey-code converter to send the >signal to the transponder. All the physical connections are sound, and the >Dynon components are pretty robust. Any suggestions on where I should start >trouble-shooting before I call the avionics shop guys out to the plane? >Thanks > >href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matronics.com/Navigator?AeroElectric-Listhref="http://forums.matronics.com">http://forums.matronics.com > href="http://www.matronics.com/contribution">http://www.matronics.com/c > ________________________________ - Release Date: 08/16/10 13:35:00 > ________________________________ Message 9 _____________________________________ Time: 10:20:29 AM PST US From: "Tim Andres" Subject: RE: AeroElectric-List: whizzo box dual power wires No expert here but I have the same question. I have seen harnesses made by a pro shop recently and they just run one wire and a short jumper over to the second pin at the distal end. I'm thinking they want to reduce the load on the pin, not so much the wire. In some cases like the GRT stuff and some Garmin the extra pins are to accommodate separate busses and are diode isolated from one another. Tim Andres -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of woxofswa Sent: Tuesday, August 17, 2010 8:51 AM Subject: AeroElectric-List: whizzo box dual power wires In the case of avionics that run dual power wires (supposedly to ease load in each wire), is it okay to terminate the two wires into a single connector to attach to c/b or should each have its own connector? Thanks in advance. -------- Myron Nelson Mesa, AZ Emp completed, QB wings completed, legacy build fuse in progress Read this topic online here: http://forums.matronics.com/viewtopic.php?p=309120#309120 Checked by AVG - www.avg.com 23:35:00 ________________________________ Message 10 ____________________________________ Time: 11:09:58 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Turn co-ordinator power plug At 10:08 AM 8/17/2010, you wrote: >Hi Guys > >Where is the best place to obtain a replacement 3 pin power plug for >a standard electric 'Turn Co-ordinator' I think this is an MS3106E10SL3S Described in the section beginning on page 167 of http://aeroelectric.com/Mfgr_Data/Connectors/ITT_Cannon/Military_Aerospace.pdf Chief Aircraft offers them at: http://www.chiefaircraft.com/airsec/Aircraft/FlightInstruments/TurnCoordinators.html Bob . . . ________________________________ Message 11 ____________________________________ Time: 11:12:09 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: whizzo box dual power wires At 10:51 AM 8/17/2010, you wrote: > >In the case of avionics that run dual power wires (supposedly to >ease load in each wire), is it okay to terminate the two wires into >a single connector to attach to c/b or should each have its own connector? Multiple wires in to a single crimp are entirely acceptable. See: http://aeroelectric.com/articles/multiplewires/multiplewires.html . . . although you probably don't need to to to this effort to make sure that two wires get properly inserted to equally share the wire-grip space. Bob . . . ________________________________ Message 12 ____________________________________ Time: 11:32:31 AM PST US From: "JOHN TIPTON" Subject: Re: AeroElectric-List: Turn co-ordinator power plug Hi Bob That looks like the one: thank you John ----- Original Message ----- From: Robert L. Nuckolls, III To: aeroelectric-list@matronics.com Sent: Tuesday, August 17, 2010 7:07 PM Subject: Re: AeroElectric-List: Turn co-ordinator power plug At 10:08 AM 8/17/2010, you wrote: Hi Guys Where is the best place to obtain a replacement 3 pin power plug for a standard electric 'Turn Co-ordinator' I think this is an MS3106E10SL3S Described in the section beginning on page 167 of http://aeroelectric.com/Mfgr_Data/Connectors/ITT_Cannon/Military_Aerospac e.pdf Chief Aircraft offers them at: http://www.chiefaircraft.com/airsec/Aircraft/FlightInstruments/TurnCoordi nators.html Bob . . . ________________________________ Message 13 ____________________________________ Time: 01:08:31 PM PST US Subject: AeroElectric-List: Who sells 26 gage wire From: "Geoff Heap" I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe I can't find some. I need maybe just one foot. It's for my Dynon ammeter shunt. They suggest using 26 gage to make fusible links for the two connections. It seems by far the simplest way to do it if I can find some............Geoff Read this topic online here: http://forums.matronics.com/viewtopic.php?p=309161#309161 ________________________________ Message 14 ____________________________________ Time: 01:40:49 PM PST US Subject: RE: AeroElectric-List: Who sells 26 gage wire From: Visit Uncle Ray http://www.rayallencompany.com/products/accessories.html Glenn E. Long -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Geoff Heap Sent: Tuesday, August 17, 2010 4:05 PM Subject: AeroElectric-List: Who sells 26 gage wire I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe I can't find some. I need maybe just one foot. It's for my Dynon ammeter shunt. They suggest using 26 gage to make fusible links for the two connections. It seems by far the simplest way to do it if I can find some............Geoff Read this topic online here: http://forums.matronics.com/viewtopic.php?p=309161#309161 ________________________________ Message 15 ____________________________________ Time: 01:41:20 PM PST US From: "Tom Hanaway" Subject: RE: AeroElectric-List: Who sells 26 gage wire Geoff, I have a spool of it. Send me your address and I'll put a few feet in an envelope. tomhanaway***at***Comcast.net Tom Hanaway RV-10 Boynton Beach, FL -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Geoff Heap Sent: Tuesday, August 17, 2010 4:05 PM Subject: AeroElectric-List: Who sells 26 gage wire I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe I can't find some. I need maybe just one foot. It's for my Dynon ammeter shunt. They suggest using 26 gage to make fusible links for the two connections. It seems by far the simplest way to do it if I can find some............Geoff Read this topic online here: http://forums.matronics.com/viewtopic.php?p=309161#309161 ________________________________ Message 16 ____________________________________ Time: 01:52:20 PM PST US Subject: AeroElectric-List: Re: Who sells 26 gage wire From: "Gig Giacona" I couldn't find it either. I ended up with an inline fuse. -------- W.R. "Gig" Giacona 601XL Under Construction See my progress at www.peoamerica.net/N601WR Read this topic online here: http://forums.matronics.com/viewtopic.php?p=309168#309168 ________________________________ Message 17 ____________________________________ Time: 04:56:10 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Who sells 26 gage wire At 03:04 PM 8/17/2010, you wrote: > >I've tried Assco, Wicks, B&C specialty and Radio shack. I can't >believe I can't find some. I need maybe just one foot. It's for my >Dynon ammeter shunt. They suggest using 26 gage to make fusible >links for the two connections. It seems by far the simplest way to >do it if I can find some............Geoff go up to 24awg and increase size of lead wires to 20awg. Where did I call out 26AWG? That's really hard to find and I can't imagine calling it out. Bob . . . ________________________________ Message 18 ____________________________________ Time: 04:56:13 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Tempermental KT-76A At 12:16 PM 8/17/2010, you wrote: >how can i unsubscribe to this subscription?????? >it s urgent... > > It appears that you are subscribed to every forum on the Matronics servers. I imagine that your email load is pretty large. You goto this link http://www.matronics.com/subscribe/ and enter your email address in the box, hit 'uncheck all' and 'subscription' and then 'execute'. Bob . . . ________________________________ Message 19 ____________________________________ Time: 04:56:57 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Who sells 26 gage wire At 03:49 PM 8/17/2010, you wrote: > >I couldn't find it either. I ended up with an inline fuse. That works too. But I need to fix the 26AWG callout. Bob . . . ________________________________ Message 20 ____________________________________ Time: 05:50:24 PM PST US Subject: Re: AeroElectric-List: Who sells 26 gage wire From: Rob Kochman The "they" he refers to is Dynon. Their harness is 22 AWG. FWIW, I don't have any protection on mine. On Tue, Aug 17, 2010 at 4:54 PM, Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > nuckolls.bob@aeroelectric.com> > > At 03:04 PM 8/17/2010, you wrote: > >> > >> >> I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe I >> can't find some. I need maybe just one foot. It's for my Dynon ammeter >> shunt. They suggest using 26 gage to make fusible links for the two >> connections. It seems by far the simplest way to do it if I can find >> some............Geoff >> > > go up to 24awg and increase size of > lead wires to 20awg. Where did I call > out 26AWG? That's really hard to find > and I can't imagine calling it out. > > > Bob . . . > > -- Rob Kochman RV-10 "Finishing" Kit Woodinville, WA (near Seattle) http://kochman.net/N819K ________________________________ Message 21 ____________________________________ Time: 07:51:07 PM PST US Subject: AeroElectric-List: Re: 9024 module lights, labeling From: "jonlaury" > No, when configured for LV monitoring, the LED flashes > ONLY while the monitored voltage is less than 13 volts. > The light goes out by itself if the voltage rises after > an LV event. So in an OV event, power to the 9024 module (and LV LED) latches open, preventing the LV monitoring function from operating? I would like to have some indication, besides noticing my voltmeter indication of low voltage, that my stby alt dropped out and that I was now riding on the battery alone (assuming that I was using the stby alt because my main alt dropped out) . The AFS EFIS volt meter alarm output can be wired to an LED for that purpose. JB Read this topic online here: http://forums.matronics.com/viewtopic.php?p=309223#309223 ------------------------------------------------------------------------------------- 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.