---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 10/07/07: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:26 AM - 90* push-on for fuse blocks (Ernest Christley) 2. 09:54 AM - Re: 90* push-on for fuse blocks (Gilles Thesee) 3. 12:05 PM - Music Inputs (Emrath) 4. 03:38 PM - Re: Wire (Robert L. Nuckolls, III) 5. 03:38 PM - Re: Transponder antenna in rag/tube aircraft (Robert L. Nuckolls, III) 6. 03:40 PM - Re: Re: Wire specifications (Robert L. Nuckolls, III) 7. 04:00 PM - Re: Re: Wire (Robert L. Nuckolls, III) 8. 04:03 PM - Re: Re: Wire (Robert L. Nuckolls, III) 9. 04:41 PM - Re: Transponder antenna in rag/tube aircraft (Peter Harris) 10. 06:54 PM - Source for Strobe Cable (Ronald Cox) 11. 07:44 PM - Re: Wire (Dj Merrill) 12. 11:12 PM - Re: Transponder antenna in rag/tube aircraft (Ernest Christley) ________________________________ Message 1 _____________________________________ Time: 09:26:10 AM PST US From: Ernest Christley Subject: AeroElectric-List: 90* push-on for fuse blocks The picture doesn't really tell the story, but I was trying to capture how much neater the fuseblocks are when used with 90-degree push-ons. It looks like the wires are coming straight out in the picture. Part of this is the angle of the shot, and part of it is that the flip down panel pulls the wires away from the fuseblock. With the swithpanel in the closed position, all the wires lay nicely down the side of the fuseblock. http://ernest.isa-geek.org/Delta/Pictures/SwitchPanel.jpg http://ernest.isa-geek.org/Delta/Pictures/SwitchPanelFuseBlock.jpg ________________________________ Message 2 _____________________________________ Time: 09:54:17 AM PST US From: Gilles Thesee Subject: Re: AeroElectric-List: 90* push-on for fuse blocks Ernest Christley a crit : > trying to capture how much neater the fuseblocks are when used with > 90-degree push-ons. > http://ernest.isa-geek.org/Delta/Pictures/SwitchPanelFuseBlock.jpg > Ernest, Bought some of those 90 "flag" Fastons at the time for special cases, but had little use for them : I discovered that they are far weaker at the junction of the crimp and 90 push on portion. So I stuck as much as I could to the regular and more robust Fastons. Besides, I found that using 90s was putting each wire really really close to the adjacent tab on the fuse block. And providing an ample service loop was more difficult without a sharp angle just at the crimp. Sooo, since I consider a nice row of well proportioned service loops as very neat...;-) Best regards, -- Gilles http://contrails.free.fr ________________________________ Message 3 _____________________________________ Time: 12:05:41 PM PST US From: "Emrath" Subject: AeroElectric-List: Music Inputs Listers, I am installing my Garmin radios stack that was prewired from Stark Aviation. The audio panel has a line for music input in intended to be connected by me to a 3.5mm jack so that a music source can be conntected thru the audio panel, Garmin's GMA 340. My question is, there is a left, right and "lo", is the barrel of the jack the "Lo" and the tip the left channel? Marty ________________________________ Message 4 _____________________________________ Time: 03:38:26 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Wire At 05:53 PM 10/6/2007 -0400, you wrote: > > >I have a Kingsley machine with 10 clockwheels, manual wirefeed. > >Overly difficult to use for small projects. > >I would be willing to sell it to a good home though.... I used to have one too. Gave it away about 15 years ago . . . >My 2 cents.. Stick with Bob's simple labeling methods, build one end >of most cables on the bench, run plenty of length and do not do not >cut the far ends to length until the clamps and ties are tight. > >Take extra care to route cables in sensable cable-runs....then reroute >them a week later because you figured out a better route. > >I have done plenty of this work, and sensable wirerouting and >clampling goes a lot farther than stamped wires. > >also, good, hand-drawn prints are more valuable than stamping. Hear, hear!!!!! Bob . . . ---------------------------------------- ( "Problems are the price of progress. ) ( Don't bring me anything but trouble. ) ( Good news weakens me." ) ( -Charles F. Kettering- ) ---------------------------------------- ________________________________ Message 5 _____________________________________ Time: 03:38:26 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Transponder antenna in rag/tube aircraft At 06:28 PM 10/6/2007 +0100, you wrote: >I'm getting reports of very poor reception of my transponder in my Piper >Colt. I've been through chaper 13 of the conection and can't really find >anything that addresses this sort of airframe. > >Questions: I assume I should use a ground plane of 5 1/2" diameter as per >a composite aircraft? Yes . . > Do I make sure the ground plane is isolated from the metal frame or bond > it to it? Doesn't matter it works as advertised even when completely isolated from the metallic airframe. > Does it matter how close the ground plane is to the metal structure? No What's the largest area "window" you can see in the tube structure on the side of the fuselage? Here's an excerpt from the Aircraft Spruce catalog at: http://aircraftspruce.com/pdf/2008Individual/Cat08532.pdf ANTENNAS FOR COMPOSITE AIRCRAFT MODEL 5 - This transponder/DME antenna is an etched copper clad epoxy circuit board dipole that is designed to be installed inside non-conductive aircraft without need for the additional installation of a ground plane. The dimensions are 6" x 7" and it can be installed in the aft fuselage or the wings with the 6" dimension vertical.VSWR is less than 1.2:1 over bands of 1032 to 1090 Mhz. ........................................................P/N 11-21005 ..........$88.50 If you could mount this to the inside surface of the fabric, 6" dimension vertical and 6" of clearance all around edges, this might perform much better and be easier to install than a ground plane on the bottom. Bob . . . ---------------------------------------- ( "Problems are the price of progress. ) ( Don't bring me anything but trouble. ) ( Good news weakens me." ) ( -Charles F. Kettering- ) ---------------------------------------- ________________________________ Message 6 _____________________________________ Time: 03:40:45 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Wire specifications At 04:24 PM 10/5/2007 -0400, you wrote: >Good Afternoon Greg, > >I purchased and have used a shrink tube sleeve style wire >marker. However, I find the additional bulk at the terminals to be >objectionable and I really miss the convenience of having markings along >the entire bundle length when doing trouble shooting. Does anyone on the >list have any experience using a Kingsley wire marking system either >directly or through a service provider of some sort? I had a manual machine that I gave away some years ago. It was a good way to invest $5.00 of labor into a 50-cent piece of wire. Bob . . . ________________________________ Message 7 _____________________________________ Time: 04:00:00 PM PST US From: "Robert L. Nuckolls, III" Subject: RE: AeroElectric-List: Re: Wire Check out the Teflon vs. Tefzel discussion on pages 38 thru 40 at: http://www.aeroelectric.com/articles/richter/response_1.pdf Bob . . . At 11:06 AM 10/5/2007 -0500, you wrote: >Teflon jacket with silver plated conductor is actually pretty poor wire >for use in aircraft. Silver plating isn't good in high vibration areas as >it's brittle. Teflon wire is slippery, has poor cold flow tendencies, etc... > >Stick with Tefzel and you'll be fine. Ignore the surplus teflon as >well. It's one of those things that's sort of "pennywise....but...". > >Chers, >Stein > > >-----Original Message----- >From: owner-aeroelectric-list-server@matronics.com >[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of >MARVHAMM@aol.com >Sent: Friday, October 05, 2007 10:20 AM >To: aeroelectric-list@matronics.com >Subject: AeroElectric-List: Re: Wire > >There is quite a lot of Teflon insulated surplus wire available on eBay >including >shielded wire at a fairly low cost. > >It appears to be high quality -- silver plated wire -- with high >temperature limits -- 200 C. > >It is my understanding that smoke from teflon insulation is not quite in >the same category as smoke from tefzel. > >I am gratified to hear the defense of tefzel, since Bob's arguments make >sense. > >I know that tefzel is a very tough insulation material. Other than that, >are there any other >reasons that one might prefer tefzel over teflon? > >....... Marv Hamm > ________________________________ Message 8 _____________________________________ Time: 04:03:02 PM PST US From: "Robert L. Nuckolls, III" Subject: RE: AeroElectric-List: Re: Wire At 08:43 AM 10/6/2007 +1000, you wrote: > >Teflon wire is a pig to strip without very sharp tools or hot knife >(Stein - how about adding hot knife strippers to your inventory?). The >risk of cut wire strands is very high. >It's a bit like working with Titanium rather than 4130 or Aluminium. >Doug Gray Teflon and Tefzel are both stripped very nicely by strippers featured at: http://www.aeroelectric.com/articles/strippers/strippers.html These specialized stripping blades are described in: http://www.aeroelectric.com/Mfgr_Data/Tools/stripmaster.pdf Bob . . . ________________________________ Message 9 _____________________________________ Time: 04:41:42 PM PST US From: "Peter Harris" Subject: RE: AeroElectric-List: Transponder antenna in rag/tube aircraft Related question please. In my glass hull I fitted the transponder antenna about 4" inside the perimeter of the circular VHF ground plane ie it shares this ground plane. Is that a No-No? Thanks Peter H -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L. Nuckolls, III Sent: Monday, 8 October 2007 9:38 AM Subject: Re: AeroElectric-List: Transponder antenna in rag/tube aircraft At 06:28 PM 10/6/2007 +0100, you wrote: >I'm getting reports of very poor reception of my transponder in my Piper >Colt. I've been through chaper 13 of the conection and can't really find >anything that addresses this sort of airframe. > >Questions: I assume I should use a ground plane of 5 1/2" diameter as per >a composite aircraft? Yes . . > Do I make sure the ground plane is isolated from the metal frame or bond > it to it? Doesn't matter it works as advertised even when completely isolated from the metallic airframe. > Does it matter how close the ground plane is to the metal structure? No What's the largest area "window" you can see in the tube structure on the side of the fuselage? Here's an excerpt from the Aircraft Spruce catalog at: http://aircraftspruce.com/pdf/2008Individual/Cat08532.pdf ANTENNAS FOR COMPOSITE AIRCRAFT MODEL 5 - This transponder/DME antenna is an etched copper clad epoxy circuit board dipole that is designed to be installed inside non-conductive aircraft without need for the additional installation of a ground plane. The dimensions are 6" x 7" and it can be installed in the aft fuselage or the wings with the 6" dimension vertical.VSWR is less than 1.2:1 over bands of 1032 to 1090 Mhz. ........................................................P/N 11-21005 ..........$88.50 If you could mount this to the inside surface of the fabric, 6" dimension vertical and 6" of clearance all around edges, this might perform much better and be easier to install than a ground plane on the bottom. Bob . . . ---------------------------------------- ( "Problems are the price of progress. ) ( Don't bring me anything but trouble. ) ( Good news weakens me." ) ( -Charles F. Kettering- ) ---------------------------------------- ________________________________ Message 10 ____________________________________ Time: 06:54:18 PM PST US From: "Ronald Cox" Subject: AeroElectric-List: Source for Strobe Cable Thanks, Bill, That's exactly what I need. Ron Cox ________________________________ Message 11 ____________________________________ Time: 07:44:34 PM PST US Subject: AeroElectric-List: Re: Wire From: Dj Merrill Bob, What would you recommend, and where to get a decent set of tools to work with Molex connectors? Crimper, extraction tool, etc. Christmas is coming up and I'm starting to make out my list... *grin* Thanks! -Dj -- Dj Merrill Sportsman 2+2 Builder #7118 http://econ.duke.edu/~deej/sportsman/ "Many things that are unexplainable happen during the construction of an airplane." --Dave Prizio, 30 Aug 2005 ________________________________ Message 12 ____________________________________ Time: 11:12:29 PM PST US From: Ernest Christley Subject: Re: AeroElectric-List: Transponder antenna in rag/tube aircraft Robert L. Nuckolls, III wrote: > > > At 06:28 PM 10/6/2007 +0100, you wrote: > >> I'm getting reports of very poor reception of my transponder in my >> Piper Colt. I've been through chaper 13 of the conection and can't >> really find anything that addresses this sort of airframe. >> >> Questions: I assume I should use a ground plane of 5 1/2" diameter as >> per a composite aircraft? > > Yes . . > >> Do I make sure the ground plane is isolated from the metal frame or >> bond it to it? > > Doesn't matter it works as advertised even > when completely isolated from the metallic > airframe. > >> Does it matter how close the ground plane is to the metal structure? > > No > > What's the largest area "window" you can see in the > tube structure on the side of the fuselage? > > Here's an excerpt from the Aircraft Spruce > catalog at: > > http://aircraftspruce.com/pdf/2008Individual/Cat08532.pdf > > Bob, I could fit that antennae in my project, but I've been looking that the one described by Matja Vidmar at http://lea.hamradio.si/~s53mv/avionics/avionics.html , specifically http://lea.hamradio.si/~s53mv/avionics/tranant.html It's an 'annular' (is that correct) antennae, and the advertised benefit is that it concentrates more of the energy in one direction. In my case it will be facing down, so I'd expect the transponder reach the ground better. Do you have any experience with this sort of antennae? Will it work? Are there serious gotcha's that I haven't a clue about? ------------------------------------------------------------------------------------- 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.