---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 10/21/11: 18 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:38 AM - Jabiru Voltage Regulator Low Voltage Light (messydeer) 2. 09:14 AM - Re: Jabiru Voltage Regulator Low Voltage Light (Michael Welch) 3. 09:32 AM - Re: Re: EI clock chime (Peter Pengilly) 4. 09:52 AM - Re: Re: EI clock chime (Michael Welch) 5. 10:16 AM - Re: Re: EI clock chime (James Kilford) 6. 11:47 AM - Re: Re: EI clock chime (John Grosse) 7. 12:01 PM - Re: EI clock chime (user9253) 8. 12:15 PM - Re: Re: EI clock chime (Peter Pengilly) 9. 12:23 PM - Re: Re: EI clock chime (Peter Pengilly) 10. 12:23 PM - Re: Re: EI clock chime (Michael Welch) 11. 12:54 PM - Re: Re: EI clock chime (Michael Welch) 12. 01:01 PM - Re: EI clock chime (user9253) 13. 01:26 PM - Alternator wiring (Dennis Ramsey) 14. 01:43 PM - Re: Re: EI clock chime (Walter Fellows) 15. 02:32 PM - Re: EI clock chime (Bill Shank) 16. 11:00 PM - Re: Alternator wiring (Robert L. Nuckolls, III) 17. 11:01 PM - Re: Alternator wiring (Robert L. Nuckolls, III) 18. 11:05 PM - Re: Jabiru Voltage Regulator Low Voltage Light (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 07:38:16 AM PST US Subject: AeroElectric-List: Jabiru Voltage Regulator Low Voltage Light From: "messydeer" Hi! I started my Jabiru 3300 for the first time a couple days ago. Here's a link: http://www.youtube.com/watch?v=qB0qe9uE1vQ I found out that I need to reprogram my MGL EFIS, but also my LV indicator light acted unexpectedly. I have the stock voltage regulator which has 6 leads. They say to connect the green one to a LV light, which I did. A fuslink then a 22awg wire takes it back to the panel where I've got it wired to a red LED light and grounded to the panel ground buss. I've got a reverse diode wired across the LED also. My master switch is a 2-10, Off-Bat only-Bat+Alt. With the engine off (no alternator), the LV light is brightly lit in both the Bat only and Bat+Alt positions. With the engine running and the alternator offline, the light is also brightly lit. So far so good. But when I add the alternator, the light dims about halfway. I expected it to be off. This was at high idle, 900 RPM. The EFIS showed a supply voltage of 12.8V at this time. Would I expect to see the light go out at higher rpm? If not, is there a way to make the dimmed light go out when the alternator is online, and allow a bright light to come through when the alternator is offline? My MGL Enigma EFIS has an alarm that can be set for LV, so the indicator light is a backup. If I can't fix it, I'd just disconnect it, or wire it to the EFIS for a general warning light that would come on for any alarm. -------- Dan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=355651#355651 ________________________________ Message 2 _____________________________________ Time: 09:14:33 AM PST US Subject: Re: AeroElectric-List: Jabiru Voltage Regulator Low Voltage Light From: Michael Welch Dan, I noticed in your video that when the motor finally fired up, the plane's tail-end raised up. I think you dodged a bullet THAT time, but next time you may not be so lucky. A few hundred more rpm on your initial start-up and I am convinced your plane would have nosed over, wiping out your prop and lots of other expensive parts...like your motor. Your wheel chocks and rope to the tree do not address the forward tipping tendency of a highly revved engine. I watched this exact same phenomenon a few days ago...also almost tipping onto it's nose. I highly suggest you consider securing the plane DOWN at the tail-end, like using a steel stake or VERY heavy weight. That's just my opinion. Other guys can watch your plane tip forward and make up their own opinion. Mike Welch On Oct 21, 2011, at 9:33 AM, messydeer wrote: > > Hi! > > I started my Jabiru 3300 for the first time a couple days ago. Here's a link: > > http://www.youtube.com/watch?v=qB0qe9uE1vQ > > I found out that I need to reprogram my MGL EFIS, but also my LV indicator light acted unexpectedly. I have the stock voltage regulator which has 6 leads. They say to connect the green one to a LV light, which I did. A fuslink then a 22awg wire takes it back to the panel where I've got it wired to a red LED light and grounded to the panel ground buss. I've got a reverse diode wired across the LED also. My master switch is a 2-10, Off-Bat only-Bat+Alt. With the engine off (no alternator), the LV light is brightly lit in both the Bat only and Bat+Alt positions. With the engine running and the alternator offline, the light is also brightly lit. So far so good. > > But when I add the alternator, the light dims about halfway. I expected it to be off. This was at high idle, 900 RPM. The EFIS showed a supply voltage of 12.8V at this time. Would I expect to see the light go out at higher rpm? If not, is there a way to make the dimmed light go out when the alternator is online, and allow a bright light to come through when the alternator is offline? > > My MGL Enigma EFIS has an alarm that can be set for LV, so the indicator light is a backup. If I can't fix it, I'd just disconnect it, or wire it to the EFIS for a general warning light that would come on for any alarm. > > -------- > Dan > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=355651#355651 > > > > > > > > > > > ________________________________ Message 3 _____________________________________ Time: 09:32:26 AM PST US From: Peter Pengilly Subject: Re: AeroElectric-List: Re: EI clock chime Joe, that's a circuit I might be interested in for another application, but I don't see a power line? Can the tone be automatically shut off after (say) 2 seconds? Peter On 21/10/2011 03:24, user9253 wrote: > --> AeroElectric-List message posted by: "user9253" > > >> Bob and all, I have a EIectronics Intermational clock that will ground a line when it reaches 0:00. I would like to hook a chime to the line and run it to my audio panel. Other than EIs tone generator, is there an easy way to do this? > Here is a circuit by Forrest M. Mims, III that makes a tone when the input goes low. > https://lh4.googleusercontent.com/-USAZBtVHo64/TqDWOf5qJcI/AAAAAAAAAcU/fBvHVErh8Bs/s439/GatedToneSource.gif > Joe Gores > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=355625#355625 > > ________________________________ Message 4 _____________________________________ Time: 09:52:04 AM PST US From: Michael Welch Subject: Re: AeroElectric-List: Re: EI clock chime Peter, I'm not Joe, he's much smarter than I am, but the "power line" you're looking for is inside the drawing labelled " ENABLE (Low= Tone) " Mike W On Oct 21, 2011, at 11:29 AM, Peter Pengilly wrote: > > Joe, that's a circuit I might be interested in for another application, but I don't see a power line? Can the tone be automatically shut off after (say) 2 seconds? > > Peter > > On 21/10/2011 03:24, user9253 wrote: >> --> AeroElectric-List message posted by: "user9253" >> >> >>> Bob and all, I have a EIectronics Intermational clock that will ground a line when it reaches 0:00. I would like to hook a chime to the line and run it to my audio panel. Other than EIs tone generator, is there an easy way to do this? >> Here is a circuit by Forrest M. Mims, III that makes a tone when the input goes low. >> https://lh4.googleusercontent.com/-USAZBtVHo64/TqDWOf5qJcI/AAAAAAAAAcU/fBvHVErh8Bs/s439/GatedToneSource.gif >> Joe Gores >> >> -------- >> Joe Gores >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=355625#355625 >> >> >> >> >> >> >> >> >> >> >> > > > > > ________________________________ Message 5 _____________________________________ Time: 10:16:50 AM PST US Subject: Re: AeroElectric-List: Re: EI clock chime From: James Kilford Vcc is the supply line. On 21 October 2011 17:29, Peter Pengilly wrote: > peter@sportingaero.com> > > Joe, that's a circuit I might be interested in for another application, b ut > I don't see a power line? Can the tone be automatically shut off after (s ay) > 2 seconds? > > Peter > > > On 21/10/2011 03:24, user9253 wrote: > >> --> AeroElectric-List message posted by: "user9253"> com > >> >> >> Bob and all, I have a EIectronics Intermational clock that will ground a >>> line when it reaches 0:00. I would like to hook a chime to the line and run >>> it to my audio panel. Other than EI=C3=A2=82=AC=84=A2s tone gener ator, is there an easy way >>> to do this? >>> >> Here is a circuit by Forrest M. Mims, III that makes a tone when the inp ut >> goes low. >> https://lh4.googleusercontent.**com/-USAZBtVHo64/TqDWOf5qJcI/** >> AAAAAAAAAcU/fBvHVErh8Bs/s439/**GatedToneSource.gif >> Joe Gores >> >> -------- >> Joe Gores >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/**viewtopic.php?p=355625#355625 >> >> >> >> >> >> >> >> >> >> >> >> =====**=================== ===========**= /www.matronics.com/Navigator?AeroElectric-List> =====**=================== ===========**= =====**=================== ===========**= com/contribution> =====**=================== ===========**= > > ________________________________ Message 6 _____________________________________ Time: 11:47:41 AM PST US From: John Grosse Subject: Re: AeroElectric-List: Re: EI clock chime I believe "ENABLE" is the ground and "Vcc" is 5VDC. When your clock goes "low" it connects to ground and makes the circuit to activate the tone. John Grosse Michael Welch wrote: > --> AeroElectric-List message posted by: Michael Welch > > Peter, > > I'm not Joe, he's much smarter than I am, but the "power line" you're looking for is > inside the drawing labelled " ENABLE (Low= Tone) " > > Mike W ________________________________ Message 7 _____________________________________ Time: 12:01:24 PM PST US Subject: AeroElectric-List: Re: EI clock chime From: "user9253" I am not really smarter than Mike Welch. But I am better looking. :D The 74LS368 is powered by 5vdc connected to pin 16 (labeled Vcc). As for automatically shutting off the tone after 2 seconds, another circuit is required for that. Perhaps something like this "One-Shot Tone Burst" circuit: http://www.eleccircuit.com/one-shot-timer-use-ic-ne555/ My favorite electronics book is "Engineer's Notebook" purchased in 1980. Although some of the ICs are no longer available. http://www.amazon.com/Forrest-Mims-Engineers-Notebook/dp/1878707035 The circuit that you use depends on the signal source, whether it is steady on or a pulse. I agree with Bob N that a microprocessor will do everything. Its circuit has the smallest parts count, will sense inputs and (if they meet certain conditions) will output the desired signal for the required time period. If one does not have a programmer, buying that will make the project more expensive. And it will take LOTS of time to learn how to program. That cost of time and money can be spread over several projects. Joe [/u] -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=355667#355667 ________________________________ Message 8 _____________________________________ Time: 12:15:48 PM PST US From: Peter Pengilly Subject: Re: AeroElectric-List: Re: EI clock chime Thanks for that! If I were to put a pot in place of the 220 resistor would I be able to adjust the volume? Also if I wanted to drive a 600 ohm load - ie an aircraft audio system - would I increase the value of all the resistors by a factor of 75, or would that affect the frequency of the output? Is the actuated by the down going edge, or because there is a potential difference between enable and Vcc? We used to call that ac or dc coupled, not sure if that's the correct use of those terms? Peter On 21/10/2011 18:12, James Kilford wrote: > Vcc is the supply line. > > On 21 October 2011 17:29, Peter Pengilly > wrote: > > > > > Joe, that's a circuit I might be interested in for another > application, but I don't see a power line? Can the tone be > automatically shut off after (say) 2 seconds? > > Peter > > > On 21/10/2011 03:24, user9253 wrote: > > --> AeroElectric-List message posted by: > "user9253"> > > > Bob and all, I have a EIectronics Intermational clock that > will ground a line when it reaches 0:00. I would like to > hook a chime to the line and run it to my audio panel. > Other than EIs tone generator, is there an easy way to > do this? > > Here is a circuit by Forrest M. Mims, III that makes a tone > when the input goes low. > https://lh4.googleusercontent.com/-USAZBtVHo64/TqDWOf5qJcI/AAAAAAAAAcU/fBvHVErh8Bs/s439/GatedToneSource.gif > Joe Gores > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=355625#355625 > > > =================================== > - > ric-List" > target="_blank">http://www.matronics.com/Navigator?AeroElectric-List > =================================== > MS - > k">http://forums.matronics.com > =================================== > e - > -Matt Dralle, List Admin. > t="_blank">http://www.matronics.com/contribution > =================================== > > > * > > > * ________________________________ Message 9 _____________________________________ Time: 12:23:04 PM PST US From: Peter Pengilly Subject: Re: AeroElectric-List: Re: EI clock chime I've found the datasheet for the 74LS368 here , looks like they require only a 5v supply and input voltage, and so I guess only output 5v also - not sure how that will drive my audio panel ... Peter On 21/10/2011 18:12, James Kilford wrote: > Vcc is the supply line. > > On 21 October 2011 17:29, Peter Pengilly > wrote: > > > > > Joe, that's a circuit I might be interested in for another > application, but I don't see a power line? Can the tone be > automatically shut off after (say) 2 seconds? > > Peter > > > On 21/10/2011 03:24, user9253 wrote: > > --> AeroElectric-List message posted by: > "user9253"> > > > Bob and all, I have a EIectronics Intermational clock that > will ground a line when it reaches 0:00. I would like to > hook a chime to the line and run it to my audio panel. > Other than EIs tone generator, is there an easy way to > do this? > > Here is a circuit by Forrest M. Mims, III that makes a tone > when the input goes low. > https://lh4.googleusercontent.com/-USAZBtVHo64/TqDWOf5qJcI/AAAAAAAAAcU/fBvHVErh8Bs/s439/GatedToneSource.gif > Joe Gores > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=355625#355625 > > > =================================== > - > ric-List" > target="_blank">http://www.matronics.com/Navigator?AeroElectric-List > =================================== > MS - > k">http://forums.matronics.com > =================================== > e - > -Matt Dralle, List Admin. > t="_blank">http://www.matronics.com/contribution > =================================== > > > * > > > * ________________________________ Message 10 ____________________________________ Time: 12:23:27 PM PST US From: Michael Welch Subject: Re: AeroElectric-List: Re: EI clock chime John, Got it!! Thanks for the explanation. Nice easy circuit. Mike Welch On Oct 21, 2011, at 1:10 PM, John Grosse wrote: > > I believe "ENABLE" is the ground and "Vcc" is 5VDC. When your clock goes "low" it connects to ground and makes the circuit to activate the tone. > > John Grosse > > > Michael Welch wrote: >> --> AeroElectric-List message posted by: Michael Welch >> >> Peter, >> >> I'm not Joe, he's much smarter than I am, but the "power line" you're looking for is >> inside the drawing labelled " ENABLE (Low= Tone) " >> >> Mike W > > > > > ________________________________ Message 11 ____________________________________ Time: 12:54:27 PM PST US From: Michael Welch Subject: Re: AeroElectric-List: Re: EI clock chime Joe, Henry Waxman, (D) Ca is better looking than me!! See; http://costonscomplaint.blogspot.com/2011/05/rep-henry-waxman-scaring-seniors-again.html hahahahaha Mike > I am not really smarter than Mike Welch. But I am better looking. :D > > Joe Gores > ________________________________ Message 12 ____________________________________ Time: 01:01:55 PM PST US Subject: AeroElectric-List: Re: EI clock chime From: "user9253" Re: Gated Tone Source I would not change the value of any component unless you intend to change the tone frequency. The speaker could be replaced with a pot. And a capacitor between the pot and the aircraft audio system will block DC. Bob's advice is needed here. Joe > If I were to put a pot in place of the 220 resistor would I be able to adjust the volume? Also if I wanted to drive a 600 ohm load - ie an aircraft audio system - would I increase the value of all the resistors by a factor of 75 -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=355678#355678 ________________________________ Message 13 ____________________________________ Time: 01:26:18 PM PST US Subject: AeroElectric-List: Alternator wiring From: Dennis Ramsey I have a 24 volt 100 amp alternator that I am wiring up. I have 5 connections on the alternator. One is the B lead and I know what to do with that. The other terminals seem straight forward until I look at the wiring diagram options for the B&CLR3C-28 controller. The other terminals are labelled F1, F2, GRD and Aux. On the B&C wiring diagram, my alterator is not shown but they show a prestolite alternator that has terminals F1 and F2 with F1 getting wired to the field and F2 getting wired to either the engine or alternator case as a ground. So I have a question about the grounding, is my continental alternator like the prestolite....do I ground the F2 terminal and do I also ground the ground terminal?, and if so what is the current basis I should use for ground wire sizing?. Its difficult for me to see why these grounds are needed on an alternator that is bolted to the engine with four substantial bolts... seems like the grounds could have been wired up internally in their design but guess that was too much work for them. By comparison my back up alternator which is a B&C SD-20 which has no ground terminals at all. Now that makes sense. On the SD-20 there are two field terminals that get pigtailed together. That just confused me more. One alternator the two F connections get pigtailed and others have one grounded and one connected to the field. I am sure this is logical to someone but just not to me. ________________________________ Message 14 ____________________________________ Time: 01:43:06 PM PST US Subject: Re: AeroElectric-List: Re: EI clock chime From: Walter Fellows I have been trying to unsubscribe to the list. I follow the instructions by hitting the execute button and it tells me that I don't need to take any other action to unsubscribe. Nevertheless I keep receiving the emails. Please unsubscribe me. Thanks On Fri, Oct 21, 2011 at 12:48 PM, user9253 wrote: > > > > Re: Gated Tone Source > I would not change the value of any component unless you intend to change > the tone frequency. The speaker could be replaced with a pot. And a > capacitor between the pot and the aircraft audio system will block DC. > Bob's advice is needed here. > Joe > > > If I were to put a pot in place of the 220 resistor would I be able to > adjust the volume? Also if I wanted to drive a 600 ohm load - ie an aircraft > audio system - would I increase the value of all the resistors by a factor > of 75 > > > -------- > Joe Gores > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=355678#355678 > > ________________________________ Message 15 ____________________________________ Time: 02:32:51 PM PST US From: "Bill Shank" Subject: RE: AeroElectric-List: EI clock chime Bob, working on the two tone generator in the 'Connection, what is the resistor that is between the two timers? Is it 220k ? Bill Shank RV6 _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L. Nuckolls, III Sent: Tuesday, October 18, 2011 11:54 AM Subject: Re: AeroElectric-List: EI clock chime At 10:36 AM 10/18/2011, you wrote: Bob and all, I have a EIectronics Intermational clock that will ground a line when it reaches 0:00. I would like to hook a chime to the line and run it to my audio panel. Other than EI=12s tone generator, is there an easy way to do this? "Easy" is difficult to quantify. How handy are you with the soldering iron? In the audio systems chapter of the 'Connection I illustrated a variety of tone generators that could be adapted to various functions in the well appointed airplane. What would you like to tone to sound like? Bob . . . ________________________________ Message 16 ____________________________________ Time: 11:00:45 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Alternator wiring At 03:17 PM 10/21/2011, you wrote: I have a 24 volt 100 amp alternator that I am wiring up. I have 5 connections on the alternator. One is the B lead and I know what to do with that. The other terminals seem straight forward until I look at the wiring diagram options for the B&CLR3C-28 controller. The other terminals are labelled F1, F2, GRD and Aux. On the B&C wiring diagram, my alterator is not shown but they show a prestolite alternator that has terminals F1 and F2 with F1 getting wired to the field and F2 getting wired to either the engine or alternator case as a ground. So I have a question about the grounding, is my continental alternator like the prestolite....do I ground the F2 terminal and do I also ground the ground terminal?, No, the alternator gets grounded through it's mounting hardware. Ignore the Aux terminal. Bob . . . ________________________________ Message 17 ____________________________________ Time: 11:01:10 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Alternator wiring > By comparison my back up alternator which is a B&C SD-20 which > has no ground terminals at all. Now that makes sense. On the > SD-20 there are two field terminals that get pigtailed > together. That just confused me more. They're redundant. Wiring to either or both will function. > One alternator the two F connections get pigtailed and others > have one grounded and one connected to the field. I am sure this > is logical to someone but just not to me. . . . it was B&C's choice to parallel the two leads when the internal regulator was removed. Bob . . . //// (o o) ===========o00o=(_)=o00o======== < Go ahead, make my day . . . > < show me where I'm wrong. > ================================ ________________________________ Message 18 ____________________________________ Time: 11:05:10 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Jabiru Voltage Regulator Low Voltage Light At 09:33 AM 10/21/2011, you wrote: > >Hi! > >I started my Jabiru 3300 for the first time a couple days ago. Here's a link: > >http://www.youtube.com/watch?v=qB0qe9uE1vQ > >I found out that I need to reprogram my MGL EFIS, but also my LV >indicator light acted unexpectedly. I have the stock voltage >regulator which has 6 leads. They say to connect the green one to a >LV light, which I did. A fuslink then a 22awg wire takes it back to >the panel where I've got it wired to a red LED light and grounded to >the panel ground buss. I've got a reverse diode wired across the LED >also. My master switch is a 2-10, Off-Bat only-Bat+Alt. With the >engine off (no alternator), the LV light is brightly lit in both the >Bat only and Bat+Alt positions. With the engine running and the >alternator offline, the light is also brightly lit. So far so good. > >But when I add the alternator, the light dims about halfway. I >expected it to be off. This was at high idle, 900 RPM. The EFIS >showed a supply voltage of 12.8V at this time. Would I expect to see >the light go out at higher rpm? If not, is there a way to make the >dimmed light go out when the alternator is online, and allow a >bright light to come through when the alternator is offline? > >My MGL Enigma EFIS has an alarm that can be set for LV, so the >indicator light is a backup. If I can't fix it, I'd just disconnect >it, or wire it to the EFIS for a general warning light that would >come on for any alarm. As a general rule, warning lights built into most regulators are NOT driven by true LV warning systems. Suggest you ingnore the lamp terminal and install a real LV warning system . . . if your EFIS has an LV warning then the one in the regulator is redundant. Bob . . . >-------- >Dan > > >Read this topic online here: > >http://forums.matronics.com/viewtopic.php?p=355651#355651 > > Bob . . . //// (o o) ===========o00o=(_)=o00o======== < Go ahead, make my day . . . > < show me where I'm wrong. > ================================ ------------------------------------------------------------------------------------- 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.