---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 12/13/11: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:57 AM - Generator Regulators (Jay Hyde) 2. 02:07 AM - Re: Kenworth Exhaust (Michael Welch) 3. 06:23 AM - Re: Generator Regulators (Kelly McMullen) 4. 07:11 AM - Re: Kenworth Exhaust (Robert L. Nuckolls, III) 5. 07:19 AM - Re: Generator Regulators (Robert L. Nuckolls, III) 6. 07:20 AM - Re: Generator Regulators (DeWitt Whittington) 7. 08:59 AM - starter switch wiring (Dennis Ramsey) 8. 10:14 AM - (Robert L. Nuckolls, III) 9. 10:51 AM - Re: (Dennis Ramsey) 10. 02:11 PM - Re: Generator Regulators (David Lloyd) 11. 04:29 PM - Re: Generator Regulators (David Lloyd) 12. 11:20 PM - Re: Generator Regulators (Jay Hyde) ________________________________ Message 1 _____________________________________ Time: 01:57:08 AM PST US From: "Jay Hyde" Subject: AeroElectric-List: Generator Regulators Does anyone know of another company, besides Zeftronics, that manufactures or supplies generator regulators? Whilst Zeftronics seems to have the lead in supplying many different regulators their service is really bad, taking more than three days to respond to emails, and then not responding properly. Its taken me almost two weeks now just to get the correct information from them and I fear that it will take the same amount of time to place an order, by which time delivery will take as long because of the time of year.. Jay South Africa ________________________________ Message 2 _____________________________________ Time: 02:07:43 AM PST US From: Michael Welch Subject: Re: AeroElectric-List: Kenworth Exhaust Bob N, I believe he is a spammer. The subject line of "Kenworth Exhaust" and his link to view automotive exhausts have zero to do with airplane electrics. At least, this is how I interpret his post. Mike Welch do not archive > > At 10:20 PM 12/12/2011, you wrote: >> >> Hey my very first comment on your site. ,I have been reading your post for a while and thought I would completely pop in and drop a friendly note. . It is great stuff indeed. > > Welcome aboard sir. Are you building an airplane? > > > > Bob . . . ________________________________ Message 3 _____________________________________ Time: 06:23:01 AM PST US From: Kelly McMullen Subject: Re: AeroElectric-List: Generator Regulators Well, their generator regulator is top notch. You do not need to purchase from Zeftronics directly. In fact you will get a better price from Chief Aircraft or Sacramento Skyranch. The regulator came with full documentation, items that needed checking prior to installation so that you don't "smoke" the regulator with a defect in electrical system. I've had mine installed for over 10 years and 700 hours flight time with no issues. I believe B&C Electrics also offers a good solid state regulator. I would never go back to a mechanical regulator. On 12/13/2011 2:52 AM, Jay Hyde wrote: > > Does anyone know of another company, besides Zeftronics, that > manufactures or supplies generator regulators? Whilst Zeftronics seems > to have the lead in supplying many different regulators their service > is really bad, taking more than three days to respond to emails, and > then not responding properly. > > Its taken me almost two weeks now just to get the correct information > from them and I fear that it will take the same amount of time to > place an order, by which time delivery will take as long because of > the time of year. > > Jay > > South Africa > > * > > > * ________________________________ Message 4 _____________________________________ Time: 07:11:58 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Kenworth Exhaust At 04:04 AM 12/13/2011, you wrote: > > >Bob N, > > I believe he is a spammer. The subject line of "Kenworth > Exhaust" and his link to view automotive exhausts >have zero to do with airplane electrics. At least, this is how I >interpret his post. Yeah, but it seemed prudent to give him the benefit of the doubt. He's not presently subscribed to any Matronics forums. Bob . . . ________________________________ Message 5 _____________________________________ Time: 07:19:36 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Generator Regulators At 08:19 AM 12/13/2011, you wrote: > >Well, their generator regulator is top notch. You do not need to >purchase from Zeftronics directly. In fact you will get a better >price from Chief Aircraft or Sacramento Skyranch. The regulator came >with full documentation, items that needed checking prior to >installation so that you don't "smoke" the regulator with a defect >in electrical system. I've had mine installed for over 10 years and >700 hours flight time with no issues. I believe B&C Electrics also >offers a good solid state regulator. I would never go back to a >mechanical regulator. The regulators offered by B&C are not suited to service with generators. Alternators are inherently current limited and do not require reverse current cutouts. Generators are nothing more than parallel wound motors that deliver energy into the system if you spin them fast enough that 'counter-emf' exceeds system voltage. Their regulation dynamics is different too. Modern micro-electronics would make it much easier to build a generator controller . . . it would simply be a scaled down version of those devices found on Beechjets and Hawkers. But the market is pretty limited. Right now, Zeftronics is the only game in town that I'm aware of. Bob . . . ________________________________ Message 6 _____________________________________ Time: 07:20:34 AM PST US Subject: Re: AeroElectric-List: Generator Regulators From: DeWitt Whittington I too can vouch for the quality of Zeftronics products. When I was the maintenance manager for a four Cessna flying club I switched all of them to Zeftronics units. And, yes, a number of the aircraft parts houses stock their products. Also I would not hesitate calling Femi Ibitayo, the owner of the company at 800-362-8985. Back in the day I met him at Oshkosh and spoke to him several times after that but not recently. Dee Sent from my iPad On Dec 13, 2011, at 9:19 AM, Kelly McMullen wrote: > > Well, their generator regulator is top notch. You do not need to purchase from Zeftronics directly. In fact you will get a better price from Chief Aircraft or Sacramento Skyranch. The regulator came with full documentation, items that needed checking prior to installation so that you don't "smoke" the regulator with a defect in electrical system. I've had mine installed for over 10 years and 700 hours flight time with no issues. I believe B&C Electrics also offers a good solid state regulator. I would never go back to a mechanical regulator. > > On 12/13/2011 2:52 AM, Jay Hyde wrote: >> >> Does anyone know of another company, besides Zeftronics, that manufactures or supplies generator regulators? Whilst Zeftronics seems to have the lead in supplying many different regulators their service is really bad, taking more than three days to respond to emails, and then not responding properly. >> >> Its taken me almost two weeks now just to get the correct information from them and I fear that it will take the same amount of time to place an order, by which time delivery will take as long because of the time of year. >> >> Jay >> >> South Africa >> >> * >> >> >> * > > > > ________________________________ Message 7 _____________________________________ Time: 08:59:49 AM PST US Subject: AeroElectric-List: starter switch wiring From: Dennis Ramsey I wired my starter switch and magnetos like Z-26 with the magneto wire shields both connected to the ground terminal on the switch and the other end of the shields connected to motor ground. Before installing the switch I confirmed continuity was correct in all switch positions. Why would one have continuity to ground from the magneto post even when the switch is in the "both" position. In fact there is strangely continuity from magneto post to magneto post. If it matters, the magnetos are Bendix and both have impulse couplings (no jumper required on the switch). I assumed that the magneto post is isolated from ground unless its wired to ground. Is that incorrect? ________________________________ Message 8 _____________________________________ Time: 10:14:52 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: At 10:55 AM 12/13/2011, you wrote: >I wired my starter switch and magnetos like Z-26 with the magneto >wire shields both connected to the ground terminal on the switch and >the other end of the shields connected to motor ground. Before >installing the switch I confirmed continuity was correct in all >switch positions. Why would one have continuity to ground from the >magneto post even when the switch is in the "both" position. In >fact there is strangely continuity from magneto post to magneto >post. If it matters, the magnetos are Bendix and both have impulse >couplings (no jumper required on the switch). I assumed that the >magneto post is isolated from ground unless its wired to ground. Is >that incorrect? No it is quite correct. What your ohmmeter perceives as "grounded" is really a measurement of the VERY LOW resistance of a magneto's primary coil (less than 1 ohm as I recall). The difference in measured resistance for a magneto's p-terminal to ground with points open verus points closed is very hard to detect with a garden variety ohmmeter. This is why one needs a "buzz box" to time a magneto. The "buzz box" is responsive to changes in AC impedance as opposed to DC resistance of the magneto p-lead circuit. Here's a compendium of documents that speak to magneto timing tools http://www.aeroelectric.com/articles/Magneto_Timing/ and even a couple of DIY buzz-boxes . . . one by the inestimable Jim Wier. Bob . . . ________________________________ Message 9 _____________________________________ Time: 10:51:00 AM PST US Subject: Re: AeroElectric-List: From: Dennis Ramsey Thanks Bob. That makes sense and educated me as to why we use timing devices instead of simple conductivity tests. I had confirmed that the issue I was seeing was indeed at the magneto but I was lost once I saw a perceived ground at the post. On Tue, Dec 13, 2011 at 1:10 PM, Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > At 10:55 AM 12/13/2011, you wrote: > > I wired my starter switch and magnetos like Z-26 with the magneto wire > shields both connected to the ground terminal on the switch and the other > end of the shields connected to motor ground. Before installing the > switch I confirmed continuity was correct in all switch positions. Why > would one have continuity to ground from the magneto post even when the > switch is in the "both" position. In fact there is strangely continuity > from magneto post to magneto post. If it matters, the magnetos are Bendix > and both have impulse couplings (no jumper required on the switch). I > assumed that the magneto post is isolated from ground unless its wired to > ground. Is that incorrect? > ** > > > No it is quite correct. What your ohmmeter perceives > as "grounded" is really a measurement of the VERY LOW > resistance of a magneto's primary coil (less than 1 > ohm as I recall). > > The difference in measured resistance for a magneto's > p-terminal to ground with points open verus points closed > is very hard to detect with a garden variety ohmmeter. > > This is why one needs a "buzz box" to time a magneto. > The "buzz box" is responsive to changes in AC impedance > as opposed to DC resistance of the magneto p-lead circuit. > > Here's a compendium of documents that speak to magneto > timing tools > > http://www.aeroelectric.com/articles/Magneto_Timing/ > > and even a couple of DIY buzz-boxes . . . one by > the inestimable Jim Wier. > > > ** > > ** Bob . . . > > * > > * > > ________________________________ Message 10 ____________________________________ Time: 02:11:16 PM PST US From: "David Lloyd" Subject: Re: AeroElectric-List: Generator Regulators Jay, Is it a generator or an alternator regulator you need...? I don't know about the older generators but, if you have an alternator, it is a Ford product. Last time I needed one, I went to a Ford truck or marine business and bought the Ford heavy duty regulator. It was less than $30 US. Same or better than the so called approved units.... Could be the same for the older generators too... D ------------------------------------------------------------------------- ------- ----- Original Message ----- From: Jay Hyde To: aeroelectric-list@matronics.com Sent: Tuesday, December 13, 2011 1:52 AM Subject: AeroElectric-List: Generator Regulators Does anyone know of another company, besides Zeftronics, that manufactures or supplies generator regulators? Whilst Zeftronics seems to have the lead in supplying many different regulators their service is really bad, taking more than three days to respond to emails, and then not responding properly. Its taken me almost two weeks now just to get the correct information from them and I fear that it will take the same amount of time to place an order, by which time delivery will take as long because of the time of year.. Jay South Africa ________________________________ Message 11 ____________________________________ Time: 04:29:02 PM PST US From: "David Lloyd" Subject: Re: AeroElectric-List: Generator Regulators Jay, I stumbled on this answer. For some reason, I thought you were discussing a Cessna based question. Best to delete my answer due to my brain fart..... D ------------------------------------------------------------------------- ------- ----- Original Message ----- From: David Lloyd To: aeroelectric-list@matronics.com Sent: Tuesday, December 13, 2011 2:07 PM Subject: Re: AeroElectric-List: Generator Regulators Jay, Is it a generator or an alternator regulator you need...? I don't know about the older generators but, if you have an alternator, it is a Ford product. Last time I needed one, I went to a Ford truck or marine business and bought the Ford heavy duty regulator. It was less than $30 US. Same or better than the so called approved units.... Could be the same for the older generators too... D ------------------------------------------------------------------------- ----- ----- Original Message ----- From: Jay Hyde To: aeroelectric-list@matronics.com Sent: Tuesday, December 13, 2011 1:52 AM Subject: AeroElectric-List: Generator Regulators Does anyone know of another company, besides Zeftronics, that manufactures or supplies generator regulators? Whilst Zeftronics seems to have the lead in supplying many different regulators their service is really bad, taking more than three days to respond to emails, and then not responding properly. Its taken me almost two weeks now just to get the correct information from them and I fear that it will take the same amount of time to place an order, by which time delivery will take as long because of the time of year.. Jay South Africa href="http://www.aeroelectric.com">www.aeroelectric.com href="http://www.buildersbooks.com">www.buildersbooks.com href="http://www.homebuilthelp.com">www.homebuilthelp.com href="http://www.matronics.com/contribution">http://www.matronics.com/c 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 ________________________________ Message 12 ____________________________________ Time: 11:20:00 PM PST US From: "Jay Hyde" Subject: RE: AeroElectric-List: Generator Regulators Thanks anyway David and all who answered. I have had replies from Zeftronics, but they take 2-3 days to reply and then it goes to 3-4 days because of the time difference between here and the US so its most frustrating. But I do have an answer now although it has now taken 2 weeks to get to this point! Jay From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of David Lloyd Sent: 14 December 2011 02:25 AM Subject: Re: AeroElectric-List: Generator Regulators Jay, I stumbled on this answer. For some reason, I thought you were discussing a Cessna based question. Best to delete my answer due to my brain fart..... D _____ ----- Original Message ----- From: David Lloyd Sent: Tuesday, December 13, 2011 2:07 PM Subject: Re: AeroElectric-List: Generator Regulators Jay, Is it a generator or an alternator regulator you need...? I don't know about the older generators but, if you have an alternator, it is a Ford product. Last time I needed one, I went to a Ford truck or marine business and bought the Ford heavy duty regulator. It was less than $30 US. Same or better than the so called approved units.... Could be the same for the older generators too... D _____ ----- Original Message ----- From: Jay Hyde Sent: Tuesday, December 13, 2011 1:52 AM Subject: AeroElectric-List: Generator Regulators Does anyone know of another company, besides Zeftronics, that manufactures or supplies generator regulators? Whilst Zeftronics seems to have the lead in supplying many different regulators their service is really bad, taking more than three days to respond to emails, and then not responding properly. Its taken me almost two weeks now just to get the correct information from them and I fear that it will take the same amount of time to place an order, by which time delivery will take as long because of the time of year.. Jay South Africa href="http://www.aeroelectric.com">www.aeroelectric.com href="http://www.buildersbooks.com">www.buildersbooks.com href="http://www.homebuilthelp.com">www.homebuilthelp.com href="http://www.matronics.com/contribution">http://www.matronics.com/chref "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 href="http://www.aeroelectric.com">www.aeroelectric.com href="http://www.buildersbooks.com">www.buildersbooks.com href="http://www.homebuilthelp.com">www.homebuilthelp.com href="http://www.matronics.com/contribution">http://www.matronics.com/chref "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 ------------------------------------------------------------------------------------- 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.