Today's Message Index:
----------------------
1. 01:41 AM - Re: Measurements (Hans Teijgeler)
2. 01:45 AM - Re: Dual Electronic Starting Issues (Hans Teijgeler)
3. 05:33 AM - switch guards (Jones, Michael)
4. 06:07 AM - Re: switch guards ()
5. 06:38 AM - Re: Measurements (Christopher Stone)
6. 04:33 PM - Coax and BNC connector signal Loss? ()
7. 04:40 PM - Re: ELCHEAPWIRE switch. ()
8. 08:22 PM - Crowbar OVM (Ron Triano)
9. 08:30 PM - test (Ron Triano)
10. 08:34 PM - Re: test (BobsV35B@aol.com)
11. 08:44 PM - Re: test (Jim Jewell)
12. 11:00 PM - Re: Coax and BNC connector signal Loss? (Robert L. Nuckolls, III)
13. 11:15 PM - Re: Source question (Robert L. Nuckolls, III)
14. 11:22 PM - Re: Re: crowbar OVM (Robert L. Nuckolls, III)
Message 1
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--> AeroElectric-List message posted by: "Hans Teijgeler" <hans@jodel.com>
Or look at the light bulb of your landing light....
100 Watt => 100/12 = 8 amps
But of course that would be too obvious...
Hans
> -----Oorspronkelijk bericht-----
> Van: owner-aeroelectric-list-server@matronics.com [mailto:owner-
> aeroelectric-list-server@matronics.com] Namens Chuck Jensen
> Verzonden: maandag 7 februari 2005 19:34
> Aan: aeroelectric-list@matronics.com
> Onderwerp: RE: AeroElectric-List: Measurements
>
> --> AeroElectric-List message posted by: "Chuck Jensen"
> <cjensen@dts9000.com>
>
> Poor mans measurement. With your master on, check the amp draw. Turn no
> landing light and note amp draw. After that, the math is simple....and
> accurate enough to tell the difference between 2, 5 or 10 amp draw.
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Tinne
> maha
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: Measurements
>
>
> --> AeroElectric-List message posted by: "Tinne maha"
> <tinnemaha@hotmail.com>
>
> Bob/List,
>
> I would like to measure the current used by my landing/taxi light. The
> multi-meters I have access to only measure up to 2 amps, but I'm sure my
> light uses more than that (on the order of 5-10 amps, I believe).
>
> Can you tell me where I can get an ammeter that measures more than 2 amps?
> Is it inadvisable to use the ammeter I will install in my plane?
>
> Any help is appreciated. Thanks,
> Grant
>
>
>
>
>
Message 2
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| Subject: | Dual Electronic Starting Issues |
--> AeroElectric-List message posted by: "Hans Teijgeler" <hans@jodel.com>
Thanks James,
Z-14 is a dual alternator dual battery setup. I've got a single alternator,
dual battery. The crossfeed feature in Z-14 sounds good though... I'll have
a good look...
Thanks
Hans
> -----Oorspronkelijk bericht-----
> Van: owner-aeroelectric-list-server@matronics.com [mailto:owner-
> aeroelectric-list-server@matronics.com] Namens James E. Clark
> Verzonden: woensdag 2 februari 2005 16:59
> Aan: aeroelectric-list@matronics.com
> Onderwerp: RE: AeroElectric-List: Dual Electronic Starting Issues
>
> --> AeroElectric-List message posted by: "James E. Clark"
> <james@nextupventures.com>
>
> Have you considered Z-14?
>
> I am using it and it **appears** to me to offer more with less complexity
> than what you propose.
>
> James
>
>
> has
> everything
> systems
> on
> amp
> isolate
> that
> be
> B.
> start
> open!
> at
>
>
>
>
>
Message 3
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--> AeroElectric-List message posted by: "Jones, Michael" <MJones@hatch.ca>
hi all
found web site with some really good looking toggle switch guards, for any
one who wants to spruce up a boring looking panel, they have reproductions
of guards from space shuttle and x-15 rocket plane panels, not that
expensive either
http://periheliondesign.com/
mike#007 <<OldNASAguards[1].gif>> <<SpaceShuttleSwitchGuard[1].jpg>>
NOTICE - This message is the property of HATCH. It may also be
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of this message you are hereby notified that you must not disseminate,
copy or take any action with respect to it.
If you have received this message in error please notify
HATCH immediately via mailto:MailAdmin@hatch.ca.
Message 4
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| Subject: | Re: switch guards |
--> AeroElectric-List message posted by: <chaztuna@adelphia.net>
I'm using the Space Shuttle replica switch guards in my 8A. They are very nice.
The have the "tang" which keys the toggle switch, machined into them. By using
a 1 1/16" spacing, you can install a guard on every other hole and the spacing
will be perfect. A very nice product.
Charlie Kuss
---- "Jones wrote:
> --> AeroElectric-List message posted by: "Jones, Michael" <MJones@hatch.ca>
>
> hi all
>
> found web site with some really good looking toggle switch guards, for any
> one who wants to spruce up a boring looking panel, they have reproductions
> of guards from space shuttle and x-15 rocket plane panels, not that
> expensive either
>
> http://periheliondesign.com/
>
> mike#007 <<OldNASAguards[1].gif>> <<SpaceShuttleSwitchGuard[1].jpg>>
>
>
> NOTICE - This message is the property of HATCH. It may also be
> confidential and/or privileged. If you are not the intended recipient
> of this message you are hereby notified that you must not disseminate,
> copy or take any action with respect to it.
>
> If you have received this message in error please notify
> HATCH immediately via mailto:MailAdmin@hatch.ca.
>
>
>
>
>
>
Message 5
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| Subject: | Re: Measurements |
--> AeroElectric-List message posted by: Christopher Stone <rv8iator@earthlink.net>
Tinne...
power(watts)=Current(amps) x Voltage(volts) a bit o' algebra yields
amps=watts\volts
so
divide the rated lamp wattage by 14 for a 14 volt system and you will get steady
state current in amps.
Chris Stone
slowest RV builder on the planet
RV-8 wings (still)
--> AeroElectric-List message posted by: "Tinne maha" <tinnemaha@hotmail.com>
Bob/List,
I would like to measure the current used by my landing/taxi light. The
multi-meters I have access to only measure up to 2 amps, but I'm sure my
light uses more than that (on the order of 5-10 amps, I believe).
Can you tell me where I can get an ammeter that measures more than 2 amps?
Is it inadvisable to use the ammeter I will install in my plane?
Any help is appreciated. Thanks,
Grant
Message 6
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| Subject: | Coax and BNC connector signal Loss? |
--> AeroElectric-List message posted by: <gmcjetpilot@yahoo.com>
Looking for some opinions from avionics/electronic experts in
regards to coax runs, in particular for a transponder, but I assume
it applies to com radios as well.
How much loss is there per foot of coax (Rx/Tx)? (RG400, RG58)
How much signal loss does each BNC connection represent?
Can you reuse a tray coax connector,e.g. de-solder old coax to install new coax?
(currently my used tray came with a short coax "service lead" with a BNC connector.
I don't really need it, but hate to buy another fitting which I understand
is expensive.)
Last, if I use a bulkhead fitting to go pass the coax thru the firewall, should
I use a regular fitting or an isolated one? (I am going to mount my transponder
antenna fwd of firewall.)
The reason I ask is my transponder to antenna coax is starting to looking like
a jigsaw puzzle with several short coax runs and connectors. I can eliminate some
of the individual runs and connectors with extra effort if needed.
Thanks George
---------------------------------
Message 7
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| Subject: | Re: ELCHEAPWIRE switch. |
--> AeroElectric-List message posted by: <gmcjetpilot@yahoo.com>
"Eric M. Jones" <emjones@charter.net> wrote:
>Saw the below listed switch on ELCHEAPWIRE's web site, and wonder if it
>is suitable for DC.
>
>http://www.elwirecheap.com/glowingstuff/sirosw.html
>
>They make outrageous claims for current capability (obviously haven't
>read Aerolectric's basics on electricity).
I have had dealing with el-chepo wire and was very unsatisfied. I bought there
dual EL light. the first one came, DOA. It was agreed to return for refund. I
end up getting another set, this time the sticky backed tape was peeled off the
bake and the adhesive was contaminated and ruined. I would not do business
with them again.
Cheers George
---------------------------------
Message 8
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--> AeroElectric-List message posted by: "Ron Triano" <rondefly@rtriano.com>
I am putting the crowbar OVM together and digikey shorted me on two items.
Are there any substitute's I can use that I can get at radio shack or Fry's.
the part are: S6025L and 2N3904.
Thanks
Ron Triano N4710P
Message 9
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--> AeroElectric-List message posted by: "Ron Triano" <rondefly@rtriano.com>
Message 10
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--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 2/8/2005 10:30:51 P.M. Central Standard Time,
rondefly@rtriano.com writes:
AeroElectric-List message posted by: "Ron Triano" <rondefly@rtriano.com
Test?
Me Too!
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Airpark LL22
Downers Grove, IL 60516
630 985-8502
Message 11
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--> AeroElectric-List message posted by: "Jim Jewell" <jjewell@telus.net>
Gary Zilik says He don't like tests!
Jim in Kelowna do not archive
----- Original Message -----
From: <BobsV35B@aol.com>
Subject: Re: AeroElectric-List: test
> --> AeroElectric-List message posted by: BobsV35B@aol.com
>
>
> In a message dated 2/8/2005 10:30:51 P.M. Central Standard Time,
> rondefly@rtriano.com writes:
>
> AeroElectric-List message posted by: "Ron Triano" <rondefly@rtriano.com
>
>
> Test?
>
> Me Too!
>
> Happy Skies,
>
> Old Bob
> AKA
> Bob Siegfried
> Ancient Aviator
> Stearman N3977A
> Brookeridge Airpark LL22
> Downers Grove, IL 60516
> 630 985-8502
>
>
>
>
>
>
>
Message 12
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| Subject: | Re: Coax and BNC connector signal Loss? |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 04:32 PM 2/8/2005 -0800, you wrote:
>--> AeroElectric-List message posted by: <gmcjetpilot@yahoo.com>
>
>Looking for some opinions from avionics/electronic experts in
>regards to coax runs, in particular for a transponder, but I assume
>it applies to com radios as well.
>
>How much loss is there per foot of coax (Rx/Tx)? (RG400, RG58)
Not enough to be concerned about for lengths usually
found on SE light airplanes but here's the data:
http://www.aeroelectric.com/articles/coaxloss.pdf
>How much signal loss does each BNC connection represent?
Very small and frequency dependent.
>Can you reuse a tray coax connector,e.g. de-solder old coax to install new
>coax? (currently my used tray came with a short coax "service lead" with a
>BNC connector. I don't really need it, but hate to buy another fitting
>which I understand is expensive.)
Clean it up and re-use it.
>Last, if I use a bulkhead fitting to go pass the coax thru the firewall,
>should I use a regular fitting or an isolated one? (I am going to mount my
>transponder antenna fwd of firewall.)
Grounded will be fine.
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 13
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| Subject: | Re: Source question |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 08:10 PM 2/6/2005 -0800, you wrote:
>--> AeroElectric-List message posted by: "Wayne Sweet" <w_sweet@comcast.net>
>
>Just finished Bob's seminar at Watsonville and discovered I have a NO-NO
>in my plane (been flying for 14 years though). Forgot to ask Bob for the
>source for the ANL60/30's; will be re-doing my main power to Z-11/14
>configuration and doing the backup battery with a SD-8.. Does someone have
>a source for these current limiters (silly question, I know)? Oh, and
>since I don't have a clue what they look like, how are they installed
>forward on the firewall and still are somewhat protected from the
>"elements" (heat, various cooling blast tubes)?
>Thanks.
>Wayne
http://www.bandc.biz/cgi-bin/ez-catalog/cat_display.cgi?7X358218#%20c903-1
http://www.bussmann.com/library/bifs/2133.PDF
http://www.bussmann.com/library/bifs/2024.PDF
Bob . . .
Message 14
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--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 06:16 AM 2/5/2005 -0800, you wrote:
>--> AeroElectric-List message posted by: "Ron" <rondefly@rtriano.com>
>
>I am putting the crowbar OVM together and digikey shorted me on two items.
>Are there any substitute's I can use that I can get at radio shack or Fry's.
>the part are:
>
>S6025L and 2N3904.
These parts show in-stock at Digikey in large quantities.
Did they charge you for them and not ship or simply
deleted them from your order as back-ordered/out-of-stock?
If they charged you for them and didn't ship, they'll
rectify the error if you give them a call. There are
TONS of suitable substitutes but couldn't suggest one
without knowing what lines and or numbers Fry's stocks.
Bob . . .
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