Today's Message Index:
----------------------
1. 07:12 AM - Ground power contactor diodes (Robert L. Nuckolls, III)
2. 12:46 PM - Building a push to talk circuit (Richard Girard)
3. 03:03 PM - SL30 Comm Failure message (John Brick)
4. 05:12 PM - A 35 amp C/B switch to control a Facet Aux Fuel Pump!!! (FrankC)
5. 05:18 PM - Re: SL30 Comm Failure message (John Schroeder)
6. 06:33 PM - Re: SL30 Comm Failure message (John Brick)
7. 07:30 PM - Re: A 35 amp C/B switch to control a Facet Aux Fuel Pump!!! (Robert L. Nuckolls, III)
Message 1
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| Subject: | Ground power contactor diodes |
>Comments/Questions: I purchased a pre wired contactor from B&C for
>ground power,when I received it I found it had one diode #IN5400 on
>the two short post and a wire on one small post to one of the large
>post, question is you have two Radio Shack diodes #IN5402 on your
>drawing do I need to change the wiring and put the two Radio Shack
>diodes on or will it work like it is. Thanks for any information.
It will 'work' as received. Adding the second diode offers
some protection against the rare instance of reversed
polarity from a ground power source. Adding it is your
choice.
Bob . . .
Message 2
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| Subject: | Building a push to talk circuit |
I bought a Vertex radio and need a push to talk switching circuit for it. I
just can't turn down the VOX actuation level enough to deal with a pusher
engine almost above my head, and a two stroke one at that. There is one
listed in the manual, but there is no part no. listed. As it happens I have
all the plugs and sockets to build one.
If I understand how this this works I need two switches, one normally open,
the other NC. The NO switch connects into the receiver and the NC into the
transmitter so that when the button is pushed the receiver is grounded and
the transmitter opened.
Does anyone on the list have one they've built, a drawing of the circuit, or
a web address where info can be found?
Thanks,
Rick Girard
Message 3
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| Subject: | SL30 Comm Failure message |
After 4 1/2 years without trouble, my Apollo SL30 has begun to show this
message briefly on startup. Then it resolves itself and does not reoccur in
flight. Garmin bought out Apollo, long ago and has made some upgrades I
think. Hope I can avoid sending this unit back to Garmin.
Any ideas?
jb
Message 4
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| Subject: | A 35 amp C/B switch to control a Facet Aux Fuel Pump!!! |
Heh guys. I'm sort of new at this so give me a little slack. I'm trying to re-wire
my aircraft with the proper wiring and changing out my C/Bs using Klixons.
Question: In my removal of the old B&P C/Bs I came across one that was a 35-amp
B&P C/B switch that was controlling my Facet Aux Fuel Pump. The funny thing
is that Facets website says that it requires a max of 1 amp for the pump. I
thought this was unusual to me. Any comments on why someone would wire it up
with a 35amp C/B switch? Am I wrong in my thinking? Should I be using a much
smaller rated C/B switch? Need lots of help. Not real savvy on wiring. Thanks
guys.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=297930#297930
Message 5
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| Subject: | Re: SL30 Comm Failure message |
John
Does it have an internal battery?
The 480 does and it gives out some messages when it starts to go bad. Call
the Garmin AT tech support people and ask them. They are great folks -
like Apollo/UPS.
John Schroeder
SL30, GNA480, GTX330, Lancair ES
On Sun, 16 May 2010 17:58:12 -0400, John Brick <jebrick@comcast.net> wrote:
> After 4 1/2 years without trouble, my Apollo SL30 has begun to show this
> message briefly on startup. Then it resolves itself and does not reoccur
> in
> flight. Garmin bought out Apollo, long ago and has made some upgrades I
> think. Hope I can avoid sending this unit back to Garmin.
> Any ideas?
>
> jb
>
Message 6
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| Subject: | SL30 Comm Failure message |
Nope, no internal battery. Will try to contact tech support tomorrow.
Thanks,
jb
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of John
Schroeder
Sent: Sunday, May 16, 2010 5:15 PM
Subject: Re: AeroElectric-List: SL30 Comm Failure message
<jschroeder@perigee.net>
John
Does it have an internal battery?
The 480 does and it gives out some messages when it starts to go bad. Call
the Garmin AT tech support people and ask them. They are great folks -
like Apollo/UPS.
John Schroeder
SL30, GNA480, GTX330, Lancair ES
On Sun, 16 May 2010 17:58:12 -0400, John Brick <jebrick@comcast.net> wrote:
> After 4 1/2 years without trouble, my Apollo SL30 has begun to show this
> message briefly on startup. Then it resolves itself and does not reoccur
> in
> flight. Garmin bought out Apollo, long ago and has made some upgrades I
> think. Hope I can avoid sending this unit back to Garmin.
> Any ideas?
>
> jb
>
Message 7
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| Subject: | Re: A 35 amp C/B switch to control a Facet Aux Fuel |
Pump!!!
At 07:10 PM 5/16/2010, you wrote:
>
>Heh guys. I'm sort of new at this so give me a little slack. I'm
>trying to re-wire my aircraft with the proper wiring and changing
>out my C/Bs using Klixons. Question: In my removal of the old B&P
>C/Bs I came across one that was a 35-amp B&P C/B switch that was
>controlling my Facet Aux Fuel Pump. The funny thing is that Facets
>website says that it requires a max of 1 amp for the pump. I
>thought this was unusual to me. Any comments on why someone would
>wire it up with a 35amp C/B switch? Am I wrong in my
>thinking? Should I be using a much smaller rated C/B switch? Need
>lots of help. Not real savvy on wiring. Thanks guys.
Yup, if the pump is the only thing powered by this
switch/breaker, then it SHOULD be a device sized
for the wire that connects the pump to the bus. Are
you sure this switch/breaker was being used for
BOTH its capabilities as a switch AND a breaker,
or just a switch. In other words, does the switch/
breaker bolt right to a bus bar along with other
breakers . . . or dose it have WIRES on both
terminals, one of which goes to the REAL breaker
on the bus. You may find that this otherwise
oversized critter was being used just for its
functionality as a switch and the real circuit
protection is right at the bus.
If it IS a dual purpose device, then by all
means, drop to a 5A device. 35 is MUCH
too large. What kind of airplane is this?
Bob . . .
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