AeroElectric-List Digest Archive

Fri 07/29/05


Total Messages Posted: 18



Today's Message Index:
----------------------
 
     1. 04:28 AM - A Bugger of an Avionics Problem (Wayne Sweet)
     2. 04:32 AM - Re: Fw: Eric and the epoxy (Chuck Jensen)
     3. 04:37 AM - Re: Tranpsonder Coax Connection (Stewart, Michael (ISS Atlanta))
     4. 05:06 AM - Re: Eric and the epoxy (Eric M. Jones)
     5. 05:43 AM - Re: Help locating a 7-10 Amp, 12 V Diodes (Mark Banus)
     6. 05:52 AM - Re: A Bugger of an Avionics Problem (Richard Dudley)
     7. 06:52 AM - Re: AeroElectric-List Digest: 31 Msgs - 07/28/05 (Ernest Christley)
     8. 09:59 AM - Re: Re: Help locating a 7-10 Amp, 12 V (Robert L. Nuckolls, III)
     9. 10:04 AM - Re: OVM trips on Alt restart (Robert L. Nuckolls, III)
    10. 10:10 AM - Off line for a few days (Robert L. Nuckolls, III)
    11. 10:38 AM - Re: Help locating a 7-10 Amp, 12 V Diodes (John Schroeder)
    12. 11:52 AM - Re: Paul M. has risen from the dead again! (P. Van Caulart)
    13. 12:20 PM - Re: I've got a secret ()
    14. 12:41 PM - Re: Re: I've got a secret (Gerry Holland)
    15. 04:17 PM - Need help with Apollo GPS (WRBYARS@aol.com)
    16. 08:04 PM - Strobe Noise Report (Phil Birkelbach)
    17. 11:12 PM - Re: Re: I've got a secret (Richard Riley)
    18. 11:13 PM - Re: Re: I've got a secret (Richard Riley)
 
 
 


Message 1


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    Time: 04:28:39 AM PST US
    From: "Wayne Sweet" <w_sweet@comcast.net>
    Subject: A Bugger of an Avionics Problem
    --> AeroElectric-List message posted by: "Wayne Sweet" <w_sweet@comcast.net> I have dual VOR/ILS's; a GNS430 and a recently installed replacement TX760/TN200D. The VOR/GS is taken from a single VOR antenna through a 1 into 4 splitter. The Terra is a replacement for an older TX720/TN200, which function well, except for a squelch problem that Toronto Avionics fixed. I sold that system on eBay. Anyway, this "new" Terra will not consistantly display the CDI for VOR/LOC EXCEPT when outbound from the ILS. Then I get turned around and inbound on the ILS, the TN200D only displays the GS. The GNS430 is rock solid out and inbound. The old TN200 did not have this problem; it and the GNS430 were working fine. Also, now the Terra TN200D will not display the CDI for the VOR unless I'm almost on the airport; VOR on airport. The TRI-NAV is wired to display the OBS setting as well as the radial currently on. This works OK, meaning the CDI is getting the correct data. The only explanation I can come up with, is that the TN200D is less sensitive than the old TN200 and outbound the "rabbit ears" antenna, oriented with the "ears" facing aft and under the tailcone has better reception going away from the ILS. This is weird; all airplanes I have seen have the VOR antenna "facing" aft. In addition I was told by an avionics shop that dual VOR/ILS typically use a 1-into-4 quadaplexer, rather than two VOR antennas.. Has anyone experienced like symtoms?? Wayne


    Message 2


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    Time: 04:32:11 AM PST US
    Subject: Fw: Eric and the epoxy
    From: "Chuck Jensen" <cjensen@dts9000.com>
    --> AeroElectric-List message posted by: "Chuck Jensen" <cjensen@dts9000.com> Rob W M Shipley wrote I am using the free version of SPAMfighter for private users. It has removed 5436 spam emails to date. Paying users do not have this message in their emails. Try www.SPAMfighter.com for free now! Huh, you must have just turned it on yesterday if that's all you've gotten! Chuck Do Not Archive


    Message 3


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    Time: 04:37:50 AM PST US
    Subject: Tranpsonder Coax Connection
    From: "Stewart, Michael (ISS Atlanta)" <mstewart@iss.net>
    --> AeroElectric-List message posted by: "Stewart, Michael (ISS Atlanta)" <mstewart@iss.net> http://www.trans-cal.com/950000rD.pdf see table I Mike Do not archive -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John Swartout Subject: RE: AeroElectric-List: Tranpsonder Coax Connection --> AeroElectric-List message posted by: "John Swartout" <jgswartout@earthlink.net> I'm in exactly the same boat--just took a KT-76A, yellow tagged, out of the box. It didn't come with a manual, and on mine, the coax was just snipped off near where it is soldered to the side of the plug that goes thru the back of the tray to plug into the radio. Also I don't see how to supply power to the radio. John -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Tinne maha (by way of Matt Dralle <nospam@matronics.com>) Subject: AeroElectric-List: Tranpsonder Coax Connection --> AeroElectric-List message posted by: "Tinne maha" <tinnemaha@hotmail.com> (by way of Matt Dralle <nospam@matronics.com>) Hello List, I've actually been searching the archives lately (usually with great success) before just blurting a question that has probably been asked 1,000 times before. That was starting to be a bad habit for me: Sorry for any unnecessary repition: I'm getting better though. This list is a GREAT resource! Thank You Bob! Maybe I didn't use the correct search string, but I did have trouble finding an answer to my current dillema: I'm installing a KT-76A transponder but the coaxial connection in the back is not a BNC type (I don't recognize it as any type) The tech rep from Honeywell said that the Coax must be soldered to the trasnponder & recommended I have an avionics shop do the work. Seems odd to me: Any advice or suggestions? Thanks, Grant Krueger


    Message 4


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    Time: 05:06:03 AM PST US
    From: "Eric M. Jones" <emjones@charter.net>
    Subject: RE: Eric and the epoxy
    --> AeroElectric-List message posted by: "Eric M. Jones" <emjones@charter.net> --> AeroElectric-List message posted by: "Rob W M Shipley" <rob@robsglass.com> >>Subject: Eric and the epoxy (By the way...I'm still dissolving the epoxy >>from the Powerlink Jr. More >>later). >I didn't know there was a way to do this! How is it done? Enquiring minds >would like to know. Rob Rob, Something with the word "miracle" in it helps. But seriously--not so hard--just Google "Epoxy Dissolver". --dissolving epoxy is not difficult, just messy and often smelly. NAPA 6802 stripper also works. On the plus side, most epoxy dissolvers will easily remove the ink from US currency so you can reuse the paper to print little award certificates. Regards, Eric M. Jones www.PerihelionDesign.com 113 Brentwood Drive Southbridge MA 01550-2705 (508) 764-2072 Don't worry about people stealing an idea. If it's original, you will have to ram it down their throats." -- Howard Aiken


    Message 5


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    Time: 05:43:19 AM PST US
    From: "Mark Banus" <mbanus@hotmail.com>
    Subject: Re: Help locating a 7-10 Amp, 12 V Diodes
    --> AeroElectric-List message posted by: "Mark Banus" <mbanus@hotmail.com> Bob/Chad, Thanks. I will try the 276-1185 but as I have a glass airplane I will have to devise some sort of heat sink. Mark Banus Glasair II FT


    Message 6


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    Time: 05:52:20 AM PST US
    From: Richard Dudley <rhdudley@att.net>
    Subject: Re: A Bugger of an Avionics Problem
    --> AeroElectric-List message posted by: Richard Dudley <rhdudley@att.net> Hi Wayne, I have been struggling with symptoms similar to those you describe. I have a GNS-430 and an SL-30. Each has it own CDI. I left the testing of the navs until I completed my 25 hours of flight testing of my RV-6A. The folks where I purchased the avionics recommended that I use a single VOR/LOC antenna split with a T taking one side of the T to the SL-30 (which has only one antenna input and an internal splitter) and the other side to a diplexer which split out the VOR/LOC and GS for the 430. Though I had misgivings about the T, they said it was the conventional way of splitting. At my first attempt at checking the systems out, I found that the SL-30 was indicating a good VOR signal while the 430 was intermittent possibly dependent on my heading relative to the station. Since then, I have done a variety of experiments including connecting the antenna to the SL-30 only with excellent VOR results (haven't checked GS yet), connecting the antenna to the diplexer and the 430 only with excellent VOR results, using a splitter which preserves both VORLOC and GS and running one output leg to the SL-30 and the other to the 430 diplexer with neither CDI indicating consistently. My conclusion is that the signal from the antenna is not adequate to drive two nav receivers. I am currently installing a second antenna in one wing tip as a final solution. I'll let you know when I have the second antenna operating and my results. Regards, Richard Dudley Wayne Sweet wrote: >--> AeroElectric-List message posted by: "Wayne Sweet" <w_sweet@comcast.net> > >I have dual VOR/ILS's; a GNS430 and a recently installed replacement TX760/TN200D. The VOR/GS is taken from a single VOR antenna through a 1 into 4 splitter. The Terra is a replacement for an older TX720/TN200, which function well, except for a squelch problem that Toronto Avionics fixed. I sold that system on eBay. >Anyway, this "new" Terra will not consistantly display the CDI for VOR/LOC EXCEPT when outbound from the ILS. Then I get turned around and inbound on the ILS, the TN200D only displays the GS. The GNS430 is rock solid out and inbound. The old TN200 did not have this problem; it and the GNS430 were working fine. >Also, now the Terra TN200D will not display the CDI for the VOR unless I'm almost on the airport; VOR on airport. The TRI-NAV is wired to display the OBS setting as well as the radial currently on. This works OK, meaning the CDI is getting the correct data. >The only explanation I can come up with, is that the TN200D is less sensitive than the old TN200 and outbound the "rabbit ears" antenna, oriented with the "ears" facing aft and under the tailcone has better reception going away from the ILS. This is weird; all airplanes I have seen have the VOR antenna "facing" aft. In addition I was told by an avionics shop that dual VOR/ILS typically use a 1-into-4 quadaplexer, rather than two VOR antennas.. >Has anyone experienced like symtoms?? >Wayne > > > >


    Message 7


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    Time: 06:52:19 AM PST US
    From: Ernest Christley <echristley@nc.rr.com>
    Subject: Re: AeroElectric-List Digest: 31 Msgs - 07/28/05
    --> AeroElectric-List message posted by: Ernest Christley <echristley@nc.rr.com> AeroElectric-List Digest Server wrote: >You used 0.035 ohms for the CB and got trip times of a few MS. I used a CB >from Wicks and measures it at 0.003 ohms and it tripped repeatetly in the >50-70 ms range. Yes the data seems illogical but my data is repeatable here >and I accept your data also as factual. > ><snip> > >ANY design that is to be reproduced must be analyzed using the specified >data sheet parts variations (and either specify the exact parts of consider >all the likely parts brands that could apply) and for general use NEVER >publish a design that violates the data sheet under any condition or assumes >parameters not specifically printed in the data sheet. > > > Bob, You should give Paul an award for this. It is a very intelligent and a germaine insight. Paul measured, tested and passed along the very useful results of a repeatable experiment. He also distilled the simple idea that "you can't expect to get the same results with different inputs." or better yet "Sometimes a cigar is just a cigar, but what you grow in your back yard may not be the same as a hand-rolled Cuban." >In any event I see no reason to continue posting. > >Paul > > Then you should take the award away from him and check "Does not play well with others" on his report card. -- ,|"|"|, | ----===<{{(oQo)}}>===---- Dyke Delta | o| d |o www.ernest.isa-geek.org |


    Message 8


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    Time: 09:59:36 AM PST US
    From: "Robert L. Nuckolls, III" <nuckollsr@cox.net> Diodes
    Subject: Re: Help locating a 7-10 Amp, 12 V
    Diodes --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net> Diodes At 08:41 AM 7/29/2005 -0400, you wrote: >--> AeroElectric-List message posted by: "Mark Banus" <mbanus@hotmail.com> > >Bob/Chad, Thanks. > > I will try the 276-1185 but as I have a glass airplane I will have > to devise some sort of heat sink. A 4 x 4" piece of .040 alum will suffice up to 10A Bob . . .


    Message 9


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    Time: 10:04:00 AM PST US
    From: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
    Subject: Re: OVM trips on Alt restart
    --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net> At 10:42 PM 7/28/2005 -0700, you wrote: >--> AeroElectric-List message posted by: "Mike Holland" <hollandm@pacbell.net> > >Thanks for the feedback. After landing and realizing what had happened it >dawned on me that the high rpm may have triggered a voltage spike that >tripped the OVM. I'm happy to report no instruments were harmed, with the >exception of an electric t&b that died, but I think that was coincidental. > >Yes, I have the Z24 wiring, with the B-lead connected to a relay and >assume it tripped. I didn't have the presence of mind at the time to >reset the breaker, cut power to idle and try to restart the >alternator, didn't even realize the breaker had tripped until I'd landed >and started to evaluate what had happened. Clearly I was unprepared for >the event. > >My take aways: > >1 Develop and use checklists, prepare for overvoltage situations and >avoid inducing them if you can. > >2 The crowbar system works. > >3 Pay attention to the data in front of you. > >Throughout this situation, the Dynon EFIS continuously displayed 3 >voltages; Main bus, E bus and it's own internal battery. If I'd paid >attention, it was obvious that the Alternator wasn't on, from the get-go. > >One last question - I did try to start my 8 amp B&C permanent magnet, >externally regulated alternator connected to my ebus. As I switched this >alternator on I watched the system voltages and didn't see squat with the >ebus on. However I didn't think to turn off the master if this matters. Yes, with the master on, you're loading the SD-8 with ALL of system loads, not just e-bus. It's likely that the load exceeded 8A which would pull bus voltage down to battery delivery levels. >This raises a whole different set of questions which is really more >suitable for another thread. Yeah, like where's that checklist for the various Z-figures I started about two years ago . . . I'll go look for it. >The SD8 Spec sheet indicates that output of this alternator is closely >related to it's rpm. At prop rpm levels you would be luck to see 2 amps >from this device under load. But this assumes the mag shaft dive turns at >prop speed. Does anyone know if this is so? Bottom line is I still >don't know if the SD8 really is a backup alternator. I'll be finding out >though and will report what I learn. The SD-8 produces 8A or better at red-line on any Lyc or Cont engine. Pad speeds are on the order of 1.4 to 1.7 times crank speed. Call B&C for more detailed data. Bob . . .


    Message 10


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    Time: 10:10:48 AM PST US
    From: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
    Subject: Off line for a few days
    --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net> Dee and I are headed for three days of goofing off in the Flint Hills with uncle George and aunt Sally. We'll get as far north to visit the Arabia Museum in Kansas City . . . a truly amazing achievement. See http://www.1856.com/ Be back on Monday. Bob . . . -------------------------------------------------------- < Throughout history, poverty is the normal condition > < of man. Advances which permit this norm to be > < exceeded -- here and there, now and then -- are the > < work of an extremely small minority, frequently > < despised, often condemned, and almost always opposed > < by all right-thinking people. Whenever this tiny > < minority is kept from creating, or (as sometimes > < happens) is driven out of a society, the people > < then slip back into abject poverty. > < > < This is known as "bad luck". > < -Lazarus Long- > <------------------------------------------------------> http://www.aeroelectric.com


    Message 11


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    Time: 10:38:13 AM PST US
    Subject: Re: Help locating a 7-10 Amp, 12 V Diodes
    From: "John Schroeder" <jschroeder@perigee.net>
    --> AeroElectric-List message posted by: "John Schroeder" <jschroeder@perigee.net> Mark - B&C also carries them. John > It's the 276-1185 at the bottom of the picture and available from Radio > Shack. --


    Message 12


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    Time: 11:52:18 AM PST US
    From: "P. Van Caulart" <etivc@iaw.on.ca>
    Subject: Re: Paul M. has risen from the dead again!
    --> AeroElectric-List message posted by: "P. Van Caulart" <etivc@iaw.on.ca> "...I have been considering posting more details on this general subject and I may in the near future limited to the specific subject of OP and internally regulated alternators as there are some industry wide truths (facts that is) that seem to be missing from posts on this list that directly contradict what is frequently posted as truths etc... Paul" Geez, I see that "Pope Paul M." is once again pontificating. Lord! why can't he be excommunicated? Peter Van Caulart


    Message 13


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    Time: 12:20:06 PM PST US
    From: <gmcjetpilot@yahoo.com>
    Subject: Re: I've got a secret
    --> AeroElectric-List message posted by: <gmcjetpilot@yahoo.com> >>Richard Riley wrote: >>Amen. >>Months ago, when this started, I begged for a simple, 4 sentence statement >>of what the problem was and what the proposed solution was. I never got a >>hint of one. I didn't care about price, or who's product was proposed. As >>near as I can tell, if you have a B&C alternator and voltage regulator, it >>doesn't concern you. But I'm not even sure of that. Time for me to start >>using my filters again. (oh no Riley don't filter! No one cares what you do) Riley: I thought we got rid of you. You deserve an award, for the most useless & hateful post. You post insults, trivial opinion or an unimportant & useless, I'll 2nd that. It's was much nicer with out you; Please just turn your computer off and go. Have a nice day, Dick Thanks George >From: Richard Riley ><richard@RILEY.NET> >Subject: Re: I've got a secret > >At 05:53 AM 7/28/05, you wrote: ><BigD@DaveMorris.com> > >You probably won't see it. I've encountered this before. It's the "I've >got a secret" game. Look it up in any good psych textbook. >> >>Amen. >>Months ago, when this started, I begged for a simple, 4 sentence statement >>of what the problem was and what the proposed solution was. I never got a >>hint of one. I didn't care about price, or who's product was proposed. As >>near as I can tell, if you have a B&C alternator and voltage regulator, it >>doesn't concern you. But I'm not even sure of that. Time for me to start >>using my filters again. --------------------------------- Stay connected, organized, and protected. Take the tour


    Message 14


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    Time: 12:41:09 PM PST US
    Subject: Re: I've got a secret
    From: Gerry Holland <gholland@gemini-resourcing.com>
    --> AeroElectric-List message posted by: Gerry Holland <gholland@gemini-resourcing.com> What on earth is this all about! I presume it's all fallout from Paul Messinger e-mail that gotten a negative response. Does anyone know....or care! > > (oh no Riley don't filter! No one cares what you do) > > > Riley: > > I thought we got rid of you. > > You deserve an award, for the most useless & hateful post. > > You post insults, trivial opinion or an unimportant & useless, I'll 2nd that. > > It's was much nicer with out you; Please just turn your computer off and go. > > Have a nice day, Dick > Thanks George


    Message 15


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    Time: 04:17:44 PM PST US
    From: WRBYARS@aol.com
    Subject: Need help with Apollo GPS
    --> AeroElectric-List message posted by: WRBYARS@aol.com Greetings to All, I'm in a bit of a dilemma with my Apollo 360 GPS Moving Map Unit, (round unit installed in the panel) which was installed with the latest data in 1997. This unit can be upgraded by using a lap top computer with an "upgrade card" in the floppy drive, connected to the GPS with a serial cable, according to the Installation Guide. Does anyone have a recent "up grade card", and cable to connect up with that they would sell, loan, rent, whatever? Here is the info that the "Guide" gives on these items. PC Interface Kit (564-0052), which includes a program diskette (31/2"),the data cable (500-0263), and a reference guide. Data Cable (500-0263), a 25 pin on the GPS end, to a 9 pin dsub COM port on the PC. Also does anyone know if the GPS unit, when hooked up to a color lap top, will display the same info on the lap top that is on the "Mother" unit on the panel, and although the original unit display is in black & white, would the lap top display the info in color? If it will, then the "co-pilot"/ passenger could have a larger, in color, view, to assist the pilot with. Sorry this is so long, however I know there is a lot of Very Knowledgeable folks out there on the list, and I very much need your help. Thanks Bill


    Message 16


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    Time: 08:04:21 PM PST US
    From: Phil Birkelbach <phil@petrasoft.net>
    Subject: Strobe Noise Report
    --> AeroElectric-List message posted by: Phil Birkelbach <phil@petrasoft.net> I installed a Nova Xpak 904 strobe power supply in my RV-7. When I did it there were questions about it causing noise in the intercom / radios, and I promised to report when I knew more. I am happy to report that I powered them up tonight with the com radio on and while listening to some Eagles on the CD player. I couldn't hear a thing from the strobes. I turned the volume up and down on everything and couldn't get so much as a tic out of it. I installed the power supply right behind the baggage compartment bulkhead, I used 3-conductor 18AWG sheilded for the strobe wires and grounded the shields only at the power supply. The ground for the power supply goes all the way back to the firewall and is grounded with the rest of the stuff. Just wanted to include this data point on the lists. Godspeed, Phil Birkelbach


    Message 17


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    Time: 11:12:04 PM PST US
    From: Richard Riley <richard@RILEY.NET>
    Subject: Re: I've got a secret
    --> AeroElectric-List message posted by: Richard Riley <richard@riley.net> If you think that's hateful, you must be new to the internet. Are you capable of summing up this amazingly useless, endless thread in one paragraph? Like The problem is X It can occur when using equipment Y, under the following conditions - If you use equipment Z instead, it won't happen. I appreciate the free ice cream that Bob delivers here. It's not always my favorite flavor, but it's still free. (That's a metaphor, BTW) At 12:19 PM 7/29/05, you wrote: >--> AeroElectric-List message posted by: <gmcjetpilot@yahoo.com> > > > >>Richard Riley wrote: > > >>Amen. > > >>Months ago, when this started, I begged for a simple, 4 sentence statement > >>of what the problem was and what the proposed solution was. I never got a > >>hint of one. I didn't care about price, or who's product was > proposed. As > >>near as I can tell, if you have a B&C alternator and voltage regulator, it > >>doesn't concern you. But I'm not even sure of that. Time for me to start > >>using my filters again. > >(oh no Riley don't filter! No one cares what you do) > > >Riley: > >I thought we got rid of you. > >You deserve an award, for the most useless & hateful post. > >You post insults, trivial opinion or an unimportant & useless, I'll 2nd that. > >It's was much nicer with out you; Please just turn your computer off and go. > >Have a nice day, Dick >Thanks George > > > >From: Richard Riley ><richard@RILEY.NET> > >Subject: Re: I've got a secret > > > >At 05:53 AM 7/28/05, you wrote: > ><BigD@DaveMorris.com> > > > >You probably won't see it. I've encountered this before. It's the "I've > >got a secret" game. Look it up in any good psych textbook. > >> > >>Amen. > >>Months ago, when this started, I begged for a simple, 4 sentence statement > >>of what the problem was and what the proposed solution was. I never got a > >>hint of one. I didn't care about price, or who's product was > proposed. As > >>near as I can tell, if you have a B&C alternator and voltage regulator, it > >>doesn't concern you. But I'm not even sure of that. Time for me to start > >>using my filters again. > > >--------------------------------- > Stay connected, organized, and protected. Take the tour > >


    Message 18


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    Time: 11:13:19 PM PST US
    From: Richard Riley <richard@RILEY.NET>
    Subject: Re: I've got a secret
    --> AeroElectric-List message posted by: Richard Riley <richard@riley.net> At 12:40 PM 7/29/05, you wrote: >--> AeroElectric-List message posted by: Gerry Holland ><gholland@gemini-resourcing.com> > >What on earth is this all about! > >I presume it's all fallout from Paul Messinger e-mail that gotten a negative >response. Does anyone know....or care! I don't. It's out of the blue for me, too.




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