---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 11/23/07: 13 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:36 AM - Re: Ps Engineering intercom noise (n801bh@netzero.com) 2. 10:02 AM - re;Tefzel cables and d-sub connectors (jim-bean@att.net) 3. 11:01 AM - Re: Ps Engineering intercom noise (Charlie England) 4. 11:26 AM - New consumer product battery (Robert L. Nuckolls, III) 5. 12:03 PM - Re: AeroElectric- Batteries (Kevin Boddicker) 6. 02:34 PM - Re: Ps Engineering intercom noise (n801bh@netzero.com) 7. 07:31 PM - Batteries.com AA Alkaline Cell Tests (Robert L. Nuckolls, III) 8. 07:31 PM - Re: Re: AeroElectric- Batteries (Robert L. Nuckolls, III) 9. 08:16 PM - Re: Batteries.com AA Alkaline Cell Tests (Ron Quillin) 10. 08:21 PM - Re: Wilco STC for concorde batteries () 11. 10:16 PM - Re: Batteries.com AA Alkaline Cell Tests (Robert L. Nuckolls, III) 12. 10:17 PM - Re: Ps Engineering intercom noise (Robert L. Nuckolls, III) 13. 10:21 PM - Re: Batteries.com AA Alkaline Cell Tests (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 06:36:27 AM PST US From: "n801bh@netzero.com" Subject: Re: AeroElectric-List: Ps Engineering intercom noise Guys, I have a Ps 1000ll in my experimental and it has worked flawlessly for three years. On my last couple of flights there is an annoying nois e when i use the intercom between the pilot and co pilot. Some facts.. The plane is quite noisy. mostly due to the V-8 Ford up front. ya it has mufflers but... When I call ATC they say my transmissions are clear and noise free. This only happens at high noise levels in the cockpit, on the ground or throttled back the intercom works great. I use Lightspeed 20-3G's for headphones and it happens with ANR either o n or off. Any ideas guys??? Ben Haas N801BH www.Haaspowerair.com -Matt Dralle, List Admin. ======================== =========== ======================== =========== ======================== =========== ________________________________ Message 2 _____________________________________ Time: 10:02:21 AM PST US From: jim-bean@att.net Subject: AeroElectric-List: re;Tefzel cables and d-sub connectors I used a DB-9 for the 5 wire servo cable. On my RV-8 it is mounted just in front of the stabilizer spar on the flat surface just below the rudder. A flexible cable comes from the serve, along the elevator spar. This makes it easy to remove the horizontal if you need to. Jim Bean ________________________________ Message 3 _____________________________________ Time: 11:01:23 AM PST US From: Charlie England Subject: Re: AeroElectric-List: Ps Engineering intercom noise n801bh@netzero.com wrote: > Guys, I have a Ps 1000ll in my experimental and it has worked flawlessly > for three years. On my last couple of flights there is an annoying noise > when i use the intercom between the pilot and co pilot. Some facts.. > > The plane is quite noisy. mostly due to the V-8 Ford up front. ya it has > mufflers but... > > When I call ATC they say my transmissions are clear and noise free. > > This only happens at high noise levels in the cockpit, on the ground or > throttled back the intercom works great. > > I use Lightspeed 20-3G's for headphones and it happens with ANR either > on or off. > > Any ideas guys??? > > Ben Haas > N801BH > www.Haaspowerair.com What is the nature of the 'annoying noise'? Is it electronic in nature, or just very loud airplane noise? This might not be relevant, but what's the condition of the ear pads on the Lightspeeds? If the slick-feeling 'skins' on the ear muffs (at least on my older 15XL's) are cracked and/or peeling, it totally destroys the noise reduction ability of the headset. Charlie ________________________________ Message 4 _____________________________________ Time: 11:26:25 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: New consumer product battery Doing some house maintenance this weekend and during a trip to Home Depot for some parts and supplies, I was "sucked in" by a Black and Decker "VPX Power" display at the checkout stand. http://www.vpxsystem.com/ The battery for this new line of cordless power tools http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/VPX_Battery_1.jpg is LiIon and the battery on display was advertised at 7 volts. A very compact critter . . . http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/VPX_Charger_F1.jpg but no place on the packaging (or later on the 'net) was I able to discover the capacity of this device. Sooooo . . . keeping Lord Kelvin's admonition about numbers in mind, I purchased a battery/charger combination to do some testing. I've got the battery on charge right now. Will cap-test it later today and report the results. This product (or a pair of them) might offer some interesting solutions to brown-out protection and/or small back-up batteries. Watch this space. In the mean time, I'll get back to making little piles of sawdust and drill chips. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 5 _____________________________________ Time: 12:03:25 PM PST US From: Kevin Boddicker Subject: AeroElectric-List: Re: AeroElectric- Batteries Bob, A week or two back I sent you two AA cells to test. Have you had time to do so? Just curious to find out if I made a good purchase or not. Kevin Boddicker Tri Q 200 N7868B 79.4 hours Luana, IA. On Nov 23, 2007, at 1:25 PM, Robert L. Nuckolls, III wrote: > > > Doing some house maintenance this weekend and during > a trip to Home Depot for some parts and supplies, I > was "sucked in" by a Black and Decker "VPX Power" display > at the checkout stand. > > http://www.vpxsystem.com/ > > The battery for this new line of cordless power tools > > http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/ > VPX_Battery_1.jpg > > is LiIon and the battery on display was advertised at 7 volts. > > A very compact critter . . . > > http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/ > VPX_Charger_F1.jpg > > but no place on the packaging (or later on the 'net) > was I able to discover the capacity of this device. > Sooooo . . . keeping Lord Kelvin's admonition about > numbers in mind, I purchased a battery/charger > combination to do some testing. > > I've got the battery on charge right now. Will cap-test > it later today and report the results. This product > (or a pair of them) might offer some interesting > solutions to brown-out protection and/or small > back-up batteries. Watch this space. > > In the mean time, I'll get back to making little > piles of sawdust and drill chips. > > > Bob . . . > > ----------------------------------------) > ( . . . a long habit of not thinking ) > ( a thing wrong, gives it a superficial ) > ( appearance of being right . . . ) > ( ) > ( -Thomas Paine 1776- ) > ---------------------------------------- > > ________________________________ Message 6 _____________________________________ Time: 02:34:19 PM PST US From: "n801bh@netzero.com" Subject: Re: AeroElectric-List: Ps Engineering intercom noise It is very loud airplane noise, as if the mics are picking up cabin so unds, I am going to crawl under the panel this afternoon and check conne ctions... Thanks for responding.. Ben Haas N801BH www.haaspowerair.com -- Charlie England wrote: south.net> n801bh@netzero.com wrote: > Guys, I have a Ps 1000ll in my experimental and it has worked flawless ly > for three years. On my last couple of flights there is an annoying noi se > when i use the intercom between the pilot and co pilot. Some facts.. > > The plane is quite noisy. mostly due to the V-8 Ford up front. ya it h as > mufflers but... > > When I call ATC they say my transmissions are clear and noise free. > > This only happens at high noise levels in the cockpit, on the ground o r > throttled back the intercom works great. > > I use Lightspeed 20-3G's for headphones and it happens with ANR either > on or off. > > Any ideas guys??? > > Ben Haas > N801BH > www.Haaspowerair.com What is the nature of the 'annoying noise'? Is it electronic in nature, or just very loud airplane noise? This might not be relevant, but what's the condition of the ear pads on the Lightspeeds? If the slick-feeling 'skins' on the ear muffs (at least on my older 15XL's) are cracked and/or peeling, it totally destroys the noise reduction ability of the headset. Charlie ======================== =========== ======================== =========== ======================== =========== ======================== =========== ________________________________ Message 7 _____________________________________ Time: 07:31:32 PM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Batteries.com AA Alkaline Cell Tests The tests I promised on the Batteries.com AA cells is done. See: http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg One of the cells was markedly 'short' compared to the other one. Even this cell contained 91% of the average energy for all cells tested. The 'hot' cell was right in the ball park with some el-cheeso Harbor Freight cells I looked at several months ago. Typically, these "low cost" cells can be had for 20 to 25-cents per cell. The cost per watt-hour for all devices tested to date have been relatively attractive. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 8 _____________________________________ Time: 07:31:50 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: AeroElectric- Batteries At 02:06 PM 11/23/2007 -0600, you wrote: >Bob, >A week or two back I sent you two AA cells to test. Have you had time to >do so? >Just curious to find out if I made a good purchase or not. >Kevin Boddicker >Tri Q 200 N7868B 79.4 hours >Luana, IA. Just posted the data. How much did you pay for these? They held their own in the constellation of low-cost cells to date. If you picked these up for 30 cents or less, I would think they're a good value. Of course, this was a VERY small sample but the data was encouraging enough to warrant some in-service testing. Let us know what your impressions are after you've used up a couple dozen. Bob . . . ________________________________ Message 9 _____________________________________ Time: 08:16:10 PM PST US Subject: Re: AeroElectric-List: Batteries.com AA Alkaline Cell Tests From: Ron Quillin At 19:26 11/23/2007, you wrote: >The tests I promised on the Batteries.com AA >cells is done. See: > >http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg Volts vs. Time (minutes ?) What was the load current or wattage? RonQ. ________________________________ Message 10 ____________________________________ Time: 08:21:19 PM PST US From: Subject: AeroElectric-List: Re: Wilco STC for concorde batteries 11/23/2007 Hello Scott, Thank you for your input copied below, but I am not entirely convinced. If you will go to this web page: http://www.aircraftspruce.com/catalog/elpages/gillbatt.php you will find this wording: "Installations not shown on D.O.T. FAA/PMA listings will require field approval using FAA Form 337 or FAA approved STC." Note that it says "FAA form 337" OR "FAA approved STC". This means to me that one or the other is required, but not both. Since Wilco has STC SA00638WI for all Raytheon / Beech models 24 (My friend has a C24R) I don't see why an FAA Form 337 would be required. Can you please provide a specific reference to the contrary? See the page "Wilco held STCs" at this web site. http://www.wilcoaircraftparts.com/LineCard.htm# Thanks for your help. 'OC' Says: "The best investment we can make is the effort to gather and understand knowledge." ----------------------------------------------------- ----- Original Message ----- From: "scott klemptner" Sent: Thursday, November 22, 2007 2:01 PM Subject: Wilco STC for concorde batteries > Hello, > > To be legal in a certified airplane, your friend will need the STC from > Wilco and a form 337 filed with the FAA. > > An IA must fill out the 337 > > WIlcom sells the batteries at a fair price ( in my experience) and > includes the STC for free > > > bmwr606@yahoo.com (scottk) > Y! IM bmwr606 > http://360.yahoo.com/bmwr606 ________________________________ Message 11 ____________________________________ Time: 10:16:05 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Batteries.com AA Alkaline Cell Tests At 08:14 PM 11/23/2007 -0800, you wrote: > >At 19:26 11/23/2007, you wrote: >>The tests I promised on the Batteries.com AA >>cells is done. See: >> >>http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg > >Volts vs. Time (minutes ?) >What was the load current or wattage? Sorry, I clipped the test data from the right side of the image. I test these cells at 300 milliamperes constant current load. The bottom of the plot is ampere-hours so these cells will support a 300 mA load for something on the order of 5 hours. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 12 ____________________________________ Time: 10:17:00 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Ps Engineering intercom noise At 10:26 PM 11/23/2007 +0000, you wrote: >It is very loud airplane noise, as if the mics are picking up cabin >sounds, I am going to crawl under the panel this afternoon and check >connections... Thanks for responding.. As I recall, PS engineering's products feature an automatic squelch system that differentiates between ambient noise and human speech. Most older intercoms have a pilot adjustable squelch that needs resetting between say ground ops and cruising flight. If you're hearing "cabin noise" and your intercom doesn't have a manual noise squelch adjustment, then it may be that this portion of the intercom's circuitry has failed. Bob . . . ________________________________ Message 13 ____________________________________ Time: 10:21:05 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Batteries.com AA Alkaline Cell Tests At 08:14 PM 11/23/2007 -0800, you wrote: > >At 19:26 11/23/2007, you wrote: >>The tests I promised on the Batteries.com AA >>cells is done. See: >> >>http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg > >Volts vs. Time (minutes ?) >What was the load current or wattage? Sorry, I clipped the test data from the right side of the image. I test these cells at 300 milliamperes constant current load. The bottom of the plot is ampere-hours so these cells will support a 300 mA load for something on the order of 5 hours. P.S. I've added the load and units callout to the bottom of the plot . . . ------------------------------------------------------------------------------------- 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.