---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 05/13/10: 15 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:10 AM - Re: Bussmann fuse blocks (rckol) 2. 06:13 AM - Re: Dynon D10A audio alarm output signal (Mike Welch) 3. 06:25 AM - Bussmann fuse blocks (Chris Stone) 4. 06:37 AM - Re: Shunt/Hall Sensor placement (user9253) 5. 06:55 AM - Re: Dynon D10A audio alarm output signal (Etienne Phillips) 6. 07:03 AM - Re: Strange radio transmit problem - any suggestions? (user9253) 7. 07:41 AM - Re: Dynon D10A audio alarm output signal (Mike Welch) 8. 08:45 AM - Re: Re: Shunt/Hall Sensor placement (Robert L. Nuckolls, III) 9. 09:44 AM - Re: Dynon D10A audio alarm output signal (Robert L. Nuckolls, III) 10. 10:04 AM - Re: Dynon D10A audio alarm output signal (Vern Little) 11. 11:14 AM - Re: Shunt/Hall Sensor placement (jonlaury) 12. 01:41 PM - Re: Dynon D10A audio alarm output signal (Mike Welch) 13. 01:47 PM - Re: Bussmann fuse blocks (rparigor@suffolk.lib.ny.us) 14. 05:38 PM - Re: Re: Re: IVO Prop Motor Current Limiter and Electronic (Dennis & Anne Glaeser) 15. 09:18 PM - Re: Re: Shunt/Hall Sensor placement (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 04:10:44 AM PST US Subject: AeroElectric-List: Re: Bussmann fuse blocks From: "rckol" Jef, You can order these over the internet in a variety of configurations from: http://www.kirbyrisk.com/ Search for 15711 and 15712 to see the variety of single and dual bus configurations. You will need a data sheet to help you sort these options out if you don't already have one. If you are going to want a terminal removal tool, you might order it at the same time. You will have to order the Packcon III terminals elsewhere I think. You can ignore all of the stuff about opening an account if you are just placing a credit card order. Dick Kaehler -------- rck Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297576#297576 ________________________________ Message 2 _____________________________________ Time: 06:13:20 AM PST US From: Mike Welch Subject: RE: AeroElectric-List: Dynon D10A audio alarm output signal Etienne=2C No=2C I think I'd rather try to just "capture" all the alarms that the un it sends. I wouldn't have the foggiest idea how to incoporate a microproce ssor. My present LED circuit simply needs the 5-15 volt electrical source to activate=2C then=2C similar to the KIT Knight 2000 rolling strobe LEDs =2C my circuit visually warns me of an alarm. I've got the LED circuit don e=2C I just would like to know if I can tap into that audio alarm signal. Is there a relatively easy way of tapping into this alarm signal=2C and n ot ruin it's intended purpose? "The output of the audio line is 16.8V peak-peak=2C at 1k ohm of impedance =2C and between 200 and 1KHz." Thanks=2C Mike Welch _________________________________________________________________ The New Busy is not the too busy. Combine all your e-mail accounts with Hot mail. http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=P ID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4 ________________________________ Message 3 _____________________________________ Time: 06:25:11 AM PST US From: Chris Stone Subject: AeroElectric-List: Bussmann fuse blocks Jef... The Bussman fuse blocks use separate terminals that are crimped to the wire then inserted into the fuse block. This requires the use of the appropriate crimper. The terminal is what determines the wire size. The terminals are sized for a range of wire sizes. Most of the connections require the 18-22 size terminals as most feeders are in this range. The max. wire size terminals are #10 which is typically fused at 30 amps which is more suitably fused with a separate maxi fuse or fusable link. The 10-16 size terminal crimp to #16 wire very well. The only problem I had was crimping #22. The tabs that form the crimp on the terminal are too large to reliably crimp this small a wire. I carefully soldered the end of the wire opposite the end that exits the terminal being careful not to allow solder to wick down the wire past the end of the terminal. (This will cause the wire to become solid and drastically increase the likelihood of fatigue failure at the terminal/wire interface). There are no installation instructions as to the insertion of the terminals into the block. For me it required trial and error with a couple of spare terminals to figure out the correct insertion orientation. Be sue to get the terminal removal tool (it looks like a very small (10mm wide) two pronged fork). Hope this helps... Chris Stone RV-8 Oregon > >Hi Chris, > >Thanks for your reply, and I will contact Waytek. >I suppose you did use such fuse block on your rv. > >According the MIH website the fuse block is for 20-12 AWG wire size; however >the Bussmann datasheet > http://www.bussmann.com/pdf/39dd59f2-bbbd-48b4-88cf-40977f474e1f.pdf >mentions # 10-16 AWG. >How should I understand that or how did you solve that? >Your help is very welcome; I'm just an amateur. > >Jef Vervoort, 91031 >Belgium. > > > > >Jef... > >All of the Bussman fuse products are available from Waytek. > >Chris Stone >RV-8 OR > > >http://order.waytekwire.com/products2/M50/140/350/250/1/ATO/ATC%20Fuse%20Blo >cks/Blade%20Fuses%20And%20Accessories/Circuit%20Protection/ > > >Does anyone know if this company is still in >business: http://www.mihdirect.biz/ > >My emails are without reply. > > > >Does anyone know of another source for these fuse >blocks, to be mounted in the main panel of an RV9 ? > > > >Jef Vervoort > > ________________________________ Message 4 _____________________________________ Time: 06:37:25 AM PST US Subject: AeroElectric-List: Re: Shunt/Hall Sensor placement From: "user9253" jonlaury, You can place the current sensor wherever it will give you the most useful information. The current sensors in Z-13/8 provide the total current produced by each alternator. Some builders locate the current sensor between the battery and main contactor. In that location and under normal conditions, the ammeter will show battery charging current, which is not very useful information. Other builders locate the current sensor in the wire that feeds the main power bus. In this location, the ammeter shows the total current used by the aircraft (except for current used for battery charging and for devices connected directly to the battery bus). It can be useful to know the total aircraft electrical load and the power consumed by each device. In case of alternator failure, a knowledgeable pilot can shut off unneeded devices that consume the most power. Given a choice between a voltmeter and an ammeter, a voltmeter is more useful. With a modern EFIS, one can monitor both voltage and current without having extra gauges on the panel. It does not matter where the current is monitored (or if it is monitored). Just be aware of the advantages and disadvantages of different locations. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297587#297587 ________________________________ Message 5 _____________________________________ Time: 06:55:51 AM PST US Subject: Re: AeroElectric-List: Dynon D10A audio alarm output signal From: Etienne Phillips Ok, fair enough :-) I'm into microprocessors, so sometimes default to them for a solution! I would suggest simply feeding the signal line through a diode, 4k7 resistor, then into the base of a switching transistor (2N2222 would be perfect for this). Your LED circuit then goes between +12V and the collector of the transistor. Emitter goes straight to ground. You may also want to put a 0.1uF cap between the node between the diode and the resistor, and ground to keep the circuit active whilst the audio signal switches through ground endlessly. (I would draw a diagram, but am a bit stretched at the moment - shout if the explanaition isn't clear). There is probably an less crude solution, but failing all else, I'm confident this would work... Comments? Speaking of crude, here's an ascii-pic: ______________________ +12V | *00*000 | sig-|>|-,-/\/\/\--|< = | ________*|*__________*|*__ 0V ** ** Thanks Etienne On 13 May 2010 15:09, Mike Welch wrote: > Etienne, > > No, I think I'd rather try to just "capture" all the alarms that the unit > sends. I wouldn't have the foggiest idea how to incoporate a > microprocessor. My present LED circuit simply needs the 5-15 > volt electrical source to activate, then, similar to the KIT Knight 2000 > rolling strobe LEDs, my circuit visually warns me of an alarm. I've got the > LED circuit done, I just would like to know if I can tap into that audio > alarm signal. > > Is there a relatively easy way of tapping into this alarm signal, and not > ruin it's intended purpose? > > > "*The output of the audio line is 16.8V peak-peak, at 1k ohm of > impedance, and between 200 and 1KHz."* > ** > Thanks, > Mike Welch > ** > > ------------------------------ > The New Busy is not the too busy. Combine all your e-mail accounts with > Hotmail. Get busy. > > * > > * > > ________________________________ Message 6 _____________________________________ Time: 07:03:15 AM PST US Subject: AeroElectric-List: Re: Strange radio transmit problem - any suggestions? From: "user9253" Peter, I have learned that assumptions are often incorrect while conducting experiments under intermittent failure conditions. Do not assume that nothing is wrong with your headset just because it worked in other aircraft. Try another known-working headset in your One Design for several hours. If there are still intermittent problems, there could be a bad connection at the mic jack or at the connector on the back of the radio. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297594#297594 ________________________________ Message 7 _____________________________________ Time: 07:41:54 AM PST US From: Mike Welch Subject: RE: AeroElectric-List: Dynon D10A audio alarm output signal Etienne=2C Your suggestion is VERY close to what I thought would work=2C although I lack the true knowledge to actually design it. I do=2C however=2C understa nd what you're getting at! Your typed diagram doesn't quite clear things up=2C although I do underst and your description well enough to build it. Maybe=2C when you get some t ime later=2C you could post a drawing. In my thoughts of a way to do this=3B I began with the diode=2C then the resistor=2C and then either a transistor=2C or an integrated circuit (l ike an astable circuit using the 555 timer)=2C to pull out the power I need ed. I spent my career as a concrete contractor and general contractor=2C and lack the expertise to design an electrical circuit. I can=2C generally=2C build a "basic" circuit=2C because I took some electronics training in the military 30 years ago. Thanks a lot!! Mike Welch Subject: Re: AeroElectric-List: Dynon D10A audio alarm output signal From: etienne.phillips@gmail.com Ok=2C fair enough :-) I'm into microprocessors=2C so sometimes default to t hem for a solution! I would suggest simply feeding the signal line through a diode=2C 4k7 resis tor=2C then into the base of a switching transistor (2N2222 would be perfec t for this). Your LED circuit then goes between +12V and the collector of t he transistor. Emitter goes straight to ground. You may also want to put a 0.1uF cap between the node between the diode and the resistor=2C and ground to keep the circuit active whilst the audio signal switches through ground endlessly. (I would draw a diagram=2C but am a bit stretched at the moment - shout if the explanaition isn't clear). There is probably an less crude solution=2C but failing all else=2C I'm con fident this would work... Comments? Speaking of crude=2C here's an ascii-pic: ______________________ +12V | 00000 | sig-|>|-=2C-/\/\/\--|< = | ________|__________|__ 0V Thanks Etienne On 13 May 2010 15:09=2C Mike Welch wrote: Etienne=2C No=2C I think I'd rather try to just "capture" all the alarms that the un it sends. I wouldn't have the foggiest idea how to incoporate a microproce ssor. My present LED circuit simply needs the 5-15 volt electrical source to activate=2C then=2C similar to the KIT Knight 2000 rolling strobe LEDs =2C my circuit visually warns me of an alarm. I've got the LED circuit don e=2C I just would like to know if I can tap into that audio alarm signal. Is there a relatively easy way of tapping into this alarm signal=2C and n ot ruin it's intended purpose? "The output of the audio line is 16.8V peak-peak=2C at 1k ohm of impedance =2C and between 200 and 1KHz." Thanks=2C Mike Welch The New Busy is not the too busy. Combine all your e-mail accounts with Hot mail. Get busy. ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List ttp://forums.matronics.com _blank">http://www.matronics.com/contribution _________________________________________________________________ Hotmail is redefining busy with tools for the New Busy. Get more from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:O N:WL:en-US:WM_HMP:042010_2 ________________________________ Message 8 _____________________________________ Time: 08:45:19 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Shunt/Hall Sensor placement jonlaury, You can place the current sensor wherever it will give you the most useful information. The current sensors in Z-13/8 provide the total current produced by each alternator. Joe is quite correct . . . and I would like to apologize for my terse responses earlier. There are reasons but they are not excuses . . . I'll attempt to make amends. Some builders locate the current sensor between the battery and main contactor. In that location and under normal conditions, the ammeter will show battery charging current, which is not very useful information. It is also more difficult to do and requires that the alternator b-lead be brought to the main bus instead of tying it into the fat-wire network on the firewall. Since one of the design goals for Z-figures is to eliminate bringing the alternator b-lead into the cockpit, implementation of the battery ammeter is more difficult. We don't want to apply cranking current stresses to the ammeter equipment and still expect it to be well calibrated for normal operation. Finally, interpreting the readings of a battery ammeter take some study and understanding of what the readings show under various operating conditions. Other builders locate the current sensor in the wire that feeds the main power bus. In this location, the ammeter shows the total current used by the aircraft (except for current used for battery charging and for devices connected directly to the battery bus). It can be useful to know the total aircraft electrical load and the power consumed by each device. In case of alternator failure, a knowledgeable pilot can shut off unneeded devices that consume the most power. Given a choice between a voltmeter and an ammeter, a voltmeter is more useful. With a modern EFIS, one can monitor both voltage and current without having extra gauges on the panel. It does not matter where the current is monitored (or if it is monitored). Just be aware of the advantages and disadvantages of different locations. Exactly. Jonlaury was wrestling with the trade-offs of the various ammeter locations and getting a handle on the significance/usefulness of the readings. When we put an instrument on the panel that offers up NUMBERS that represent performance values, the cognizant system designer considers when and how those numbers are useful. In the case of the Z13/8, normal operations may load the e-bus to greater than 8A and it's no problem as long as the main alternator is functioning. An alternator loadmeter in the SD-8 feed line allows the pilot to do an as-needed load reduction on the e-bus when conditions require a shift to Plan-B. The legacy placement for ammeters has been in either (1) battery ammeter like your grandpa's Piper, Cessna and '52 Chevy, or (2) alternator/ generator loadmeters like the rest of general aviation. But no matter where they are placed, they'll offer very low-value data. In other words, it's entirely possible and practical to craft a system with no ammeters at all. Active notification of low voltage combined with what ever electrical system instrumentation comes with your modern electro-whizzies can be quite adequate to the task of airborne electrical system management and crafting of Plans A and B. Plan-A says, "I can operate THIS list of electro-whizzies." Plan-B says, "I can operate THAT list of electro-whizzies." It's better that you craft the two plans before first flight rather than "on the fly", no pun intended. Bob . . . ________________________________ Message 9 _____________________________________ Time: 09:44:41 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Dynon D10A audio alarm output signal "The output of the audio line is 16.8V peak-peak, at 1k ohm of impedance, and between 200 and 1KHz." > >I would suggest simply feeding the signal line through a diode, 4k7 >resistor, then into the base of a switching transistor (2N2222 would >be perfect for this). Your LED circuit then goes between +12V and >the collector of the transistor. Emitter goes straight to ground. >You may also want to put a 0.1uF cap between the node between the >diode and the resistor, and ground to keep the circuit active whilst >the audio signal switches through ground endlessly. (I would draw a >diagram, but am a bit stretched at the moment - shout if the >explanaition isn't clear). > >There is probably an less crude solution, but failing all else, I'm >confident this would work... > >Comments? Etienne is on a useful track . . . I'll suggest the following clarification/amplification: http://aeroelectric.com/Pictures/Schematics/Dynon_Alarm_Tone_Detector.pdf This circuit ASSUMES that when no tone is present, that the DC voltage on the Dynon Alarm Tone Output is zero volts. Check this with your voltmeter before marching on . . . The 10K isolation resistor reduces loading on the normal audio signal. The 2N3904 is a half-wave rectifier that pulls down on the charge stored on the 1 uF tantalum electrolytic. When the tone is present, the capacitor discharges on positive excursions of the alarm tone through the 1K ohm resistor and 2N3904. This in turn pulls down on the base of 2N3906 and turns on the light. The R/C time-constant of the 1uf capacitor and a pair of 10K pull up resistors will keep the light turned on during negative excursions of the alarm tone signal. When the alarm tone goes away, the two 10K resistors in series pull the base of 2N3906 to the +12 rail and turns it OFF. Bob . . . ________________________________ Message 10 ____________________________________ Time: 10:04:39 AM PST US From: "Vern Little" Subject: Re: AeroElectric-List: Dynon D10A audio alarm output signal Been there, done that: see http://vx-aviation.com/page_2.html#V-Speed Auxiliary Display System Thats the good news. The bad news is that it is no longer available. Since the product was first introduced, Dynon subsequently added a larger visual representation on screen and the audible alarm. Both of these go a long way to mitigating the need for an external display. Nevertheless, the product was popular... but it was too costly to continue to sell at the price offered. I might have some circuit boards and programmed microcontrollers left in inventory that could be pried away, please contact me off list using the email address on the vx aviation site. Thanks Vern Little www.vx-aviation.com From: Etienne Phillips Sent: Wednesday, May 12, 2010 10:09 PM Subject: Re: AeroElectric-List: Dynon D10A audio alarm output signal Hi Mike As an alternative, would it not be easier and more reliable to use the serial stream output to get the AoA? Although this would involve a microprocessor, you would have direct access to the real AoA value at all times, not just when the alarm sounds. If you are looking for a strobe that flashes for all alarms, then your way is probably better, but if it's just for AoA, then I would suggest looking at the serial stream. Thanks Etienne On 13 May 2010, at 2:14 AM, Mike Welch wrote: Group, While searching Dynon's archives I found the following correspondence from a guy that wanted to do exactly the same thing as me......set the audio alert signal to ALSO activate a line of LEDs. In addition to the audio tone that the D10A emits, I want it to also power a "555 timer/decade counter---LED strobe circuit" that I built. The circuit is built, now I just need to know a good way to send a power source to it from th D10A's alarm signal. Evidently, according to Dynon support, I can choose between a steady tone, or an increasing rate intermittant tone, increasing in frequency the closer one gets to critical AOA. I believe my decade counter circuit needs a solid 5-15volts, so I'd choose the steady tone. The following is the archived messages; QUESTION: I am interested in connecting the AOA audio on my D10A to a device that would be audible or visible in the cabin of the RV-6. I assume the audio output is a modulated signal. Is there an easy way to convert this output to DC voltage that would drive a beeper/buzzer/warning light/whatever? _________________________________________________________________________ _____ ANSWER; (from Dynon Technical Support) The output of the audio line is 16.8V peak-peak, at 1k ohm of impedance, and between 200 and 1KHz. It will drive into an audio panel and put noise in your headset. We generate different noises for different alarms (general alarm, AoA, autopilot, altitude alerter...) If you're looking to put it into a external buzzer or drive an external light, we can't be much help, as we didn't design it for that nor have we ever attempted it. With a small op-amp and some thought it could be done for sure though. _________________________________________________________________________ ___ My question is; with the audio alarm signal(s) that the D10A produces(described by Dynon Tech Support), how can I tap into that signal for my LED circuit, and not screw it up for the intercom "audio in"? Any ideas? Thanks for your help!! Mike Welch ------------------------------------------------------------------------- ----- The New Busy is not the too busy. Combine all your e-mail accounts with Hotmail. Get busy. href="http://www.matronics.com/Navigator?AeroElectric-List">http://www. matronics.com/Navigator?AeroElectric-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ontribution ------------------------------------------------------------------------- ------- Checked by AVG - www.avg.com 06:26:00 ________________________________ Message 11 ____________________________________ Time: 11:14:05 AM PST US Subject: AeroElectric-List: Re: Shunt/Hall Sensor placement From: "jonlaury" Joe and Bob, "Joe is quite correct . . . and I would like to apologize for my terse responses earlier. There are reasons but they are not excuses . . . I'll attempt to make amends. " Thank you both for your learned observations and attempts to understand my thinking on this. Bob, your prodigious and continuing contribution to the OBAM aircraft community on this forum unequivocally qualifies you as the most patient teacher I've ever encountered. I didn't think your response was "terse". I thought it was patient, good-natured disgruntledness or self-effacing comic exasperation of having explained, about a gazillion times on this forum, that knowing how many amps your system is using is not very useful. When I read your response, the annunciator light went on that says "oh yeah, I've read this before" and felt foolish for wasting forum space. And in spite of knowing how many amps are careening about my system, I also know that it's only useful in making me feel like I'm more in control. Yet the control freak in me wants to know. So with your and Joe's clarifications about what the different placements of the current sensor mean, I will confidently sally forth to appease my inner demons. John Read this topic online here: http://forums.matronics.com/viewtopic.php?p=297626#297626 ________________________________ Message 12 ____________________________________ Time: 01:41:58 PM PST US From: Mike Welch Subject: RE: AeroElectric-List: Dynon D10A audio alarm output signal Hi Vern=2C For my present airplane (with the Dynon D10A=2C I already have built the strobing LED circuit. I just needed clarification on how to grab some of t hat audio signal=2C without screwing everything up. So=2C at this time=2C and for what I already have=2C I think Bob's versio n of Etienne's design is what I should go after. However!! I do have another D10A that is planned for my GlaStar=2C and y our circuitry would be a serious consideration. I'll contact you off-list for more info. Thanks for everyone's help. Mike Welch From: sprocket@vx-aviation.com Subject: Re: AeroElectric-List: Dynon D10A audio alarm output signal Been there=2C done that: see http://vx-aviation.com/page_2.html#V-Speed Au xiliary Display System Thats the good news. The bad news is that it is no longer available. Sinc e the product was first introduced=2C Dynon subsequently added a larger vis ual representation on screen and the audible alarm. Both of these go a lon g way to mitigating the need for an external display. Nevertheless=2C the product was popular... but it was too costly to continue to sell at the pr ice offered. I might have some circuit boards and programmed microcontrollers left in in ventory that could be pried away=2C please contact me off list using the em ail address on the vx aviation site. Thanks Vern Little www.vx-aviation.com From: Etienne Phillips Sent: Wednesday=2C May 12=2C 2010 10:09 PM Subject: Re: AeroElectric-List: Dynon D10A audio alarm output signal Hi Mike As an alternative=2C would it not be easier and more reliable to use the se rial stream output to get the AoA? Although this would involve a microproce ssor=2C you would have direct access to the real AoA value at all times=2C not just when the alarm sounds. If you are looking for a strobe that flashes for all alarms=2C then your wa y is probably better=2C but if it's just for AoA=2C then I would suggest lo oking at the serial stream. Thanks Etienne On 13 May 2010=2C at 2:14 AM=2C Mike Welch wrote: Group=2C While searching Dynon's archives I found the following correspondence fro m a guy that wanted to do exactly the same thing as me......set the audio a lert signal to ALSO activate a line of LEDs. In addition to the audio tone that the D10A emits=2C I want it to also po wer a "555 timer/decade counter---LED strobe circuit" that I built. The circuit is built=2C now I just need to know a good way to send a pow er source to it from th D10A's alarm signal. Evidently=2C according to Dynon support=2C I can choose between a steady tone=2C or an increasing rate intermittant tone=2C increasing in frequency the closer one gets to critical AOA. I believe my decade counter circuit needs a solid 5-15volts=2C so I'd cho ose the steady tone. The following is the archived messages=3B QUESTION: I am interested in connecting the AOA audio on my D10A to a device that wou ld be audible or visible in the cabin of the RV-6. I assume the audio outpu t is a modulated signal. Is there an easy way to convert this output to DC voltage that would drive a beeper/buzzer/warning light/whatever? ___________________________________________________________________________ ___ ANSWER=3B (from Dynon Technical Support) The output of the audio line is 16.8V peak-peak=2C at 1k ohm of impedance =2C and between 200 and 1KHz. It will drive into an audio panel and put noi se in your headset. We generate different noises for different alarms (gene ral alarm=2C AoA=2C autopilot=2C altitude alerter...) If you're looking to put it into a external buzzer or drive an external lig ht=2C we can't be much help=2C as we didn't design it for that nor have we ever attempted it. With a small op-amp and some thought it could be done for sure though. ___________________________________________________________________________ _ My question is=3B with the audio alarm signal(s) that the D10A produces(d escribed by Dynon Tech Support)=2C how can I tap into that signal for my LE D circuit=2C and not screw it up for the intercom "audio in"? Any ideas? Thanks for your help!! Mike Welch The New Busy is not the too busy. Combine all your e-mail accounts with Hot mail. Get busy. href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.ma tronics.com/Navigator?AeroElectric-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/con tribution href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.ma tronics.com/Navigator?AeroElectric-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c Release Date: 05/13/10 06:26:00 _________________________________________________________________ The New Busy is not the too busy. Combine all your e-mail accounts with Hot mail. http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=P ID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4 ________________________________ Message 13 ____________________________________ Time: 01:47:21 PM PST US Subject: Re: AeroElectric-List: Bussmann fuse blocks From: rparigor@suffolk.lib.ny.us Hi Chris "Be sue to get the terminal removal tool (it looks like a very small (10mm wide) two pronged fork)." I never saw a tool like that. Who sells them? Perhaps this: http://www.handsontools.com/Lisle-13120-Electrical-Connector-Separator_p_5706.html Thx. Ron Parigoris ________________________________ Message 14 ____________________________________ Time: 05:38:03 PM PST US From: "Dennis & Anne Glaeser" Subject: AeroElectric-List: Re: Re: re: IVO Prop Motor Current Limiter and Electronic The instructions do say not to shorten the wires. >From a support standpoint, it makes sense for IVO to specify that no changes be made to the system they know works as advertised. >From a physics standpoint, a couple of feet of 16AWG wire isn't going to measurably affect the current to the motor or when that CB trips. If anything, less wire should mean more current and make the breaker trip quicker. (Not everyone follows the instructions) Dennis ---------------------------- Is it true that IVO insists that the supplied wiring to the prop not be shortened as it is part of the current limiting to protect the motor gears? Ken ________________________________ Message 15 ____________________________________ Time: 09:18:47 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Shunt/Hall Sensor placement And in spite of knowing how many amps are careening about my system, I also know that it's only useful in making me feel like I'm more in control. Yet the control freak in me wants to know. So with your and Joe's clarifications about what the different placements of the current sensor mean, I will confidently sally forth to appease my inner demons. Everyone learns differently. If some new light bulbs have lit up for you, then what we've done here is a good thing. 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.