Today's Message Index:
----------------------
1. 07:50 AM - Re: Tempermental KT-76A (Tim Andres)
2. 08:09 AM - Turn co-ordinator power plug (JOHN TIPTON)
3. 08:18 AM - Re: Aeroflash power supply (Robert L. Nuckolls, III)
4. 08:52 AM - whizzo box dual power wires (woxofswa)
5. 09:23 AM - Re: 9024 module lights, labeling (Robert L. Nuckolls, III)
6. 09:38 AM - Re: Tempermental KT-76A (Bill Hibbing)
7. 09:42 AM - Fw: Tempermental KT-76A (Bill Hibbing)
8. 10:20 AM - Re: Tempermental KT-76A (alexandru Stuparu)
9. 10:20 AM - Re: whizzo box dual power wires (Tim Andres)
10. 11:09 AM - Re: Turn co-ordinator power plug (Robert L. Nuckolls, III)
11. 11:12 AM - Re: whizzo box dual power wires (Robert L. Nuckolls, III)
12. 11:32 AM - Re: Turn co-ordinator power plug (JOHN TIPTON)
13. 01:08 PM - Who sells 26 gage wire (Geoff Heap)
14. 01:40 PM - Re: Who sells 26 gage wire ()
15. 01:41 PM - Re: Who sells 26 gage wire (Tom Hanaway)
16. 01:52 PM - Re: Who sells 26 gage wire (Gig Giacona)
17. 04:56 PM - Re: Who sells 26 gage wire (Robert L. Nuckolls, III)
18. 04:56 PM - Re: Tempermental KT-76A (Robert L. Nuckolls, III)
19. 04:56 PM - Re: Re: Who sells 26 gage wire (Robert L. Nuckolls, III)
20. 05:50 PM - Re: Who sells 26 gage wire (Rob Kochman)
21. 07:51 PM - Re: 9024 module lights, labeling (jonlaury)
Message 1
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| Subject: | Tempermental KT-76A |
In my limited experience, the tray connector gives a lot of trouble. If it
is an older unit especially, try removing and inserting it or just applying
pressure to the face and see if it starts working. If so I'd suggest getting
a new connector.
<mailto:rnbraud@yahoo.com> Tim
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Gregory
Clawson
Sent: Monday, August 16, 2010 8:46 PM
Subject: AeroElectric-List: Tempermental KT-76A
I am hoping for some guidance regarding a capricious KT-76A transponder. It
works normally for a while, and then the Mode C cuts out. I am using a
Dynon D-100 for the altitude encoder, then Dynon's grey-code converter to
send the signal to the transponder. All the physical connections are sound,
and the Dynon components are pretty robust. Any suggestions on where I
should start trouble-shooting before I call the avionics shop guys out to
the plane?
Thanks
Checked by AVG - www.avg.com
11:35:00
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| Subject: | Turn co-ordinator power plug |
Hi Guys
Where is the best place to obtain a replacement 3 pin power plug for a
standard electric 'Turn Co-ordinator'
Regards - John
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| Subject: | Re: Aeroflash power supply |
At 11:38 AM 8/16/2010, you wrote:
>
>Did you mean C5 rather than C6?
Yes, that's a typo. In the schematic I published,
C3 is the flash-tube energy storage capacitor and
C5 is energy source for generating a trigger spike.
Bob . . .
Message 4
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| Subject: | whizzo box dual power wires |
In the case of avionics that run dual power wires (supposedly to ease load in each
wire), is it okay to terminate the two wires into a single connector to attach
to c/b or should each have its own connector?
Thanks in advance.
--------
Myron Nelson
Mesa, AZ
Emp completed, QB wings completed, legacy build fuse in progress
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=309120#309120
Message 5
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| Subject: | Re: 9024 module lights, labeling |
At 08:33 PM 8/16/2010, you wrote:
>
>Group,
>
>I am labeling the panel that will contain the aux alternator switch
>and the aux alternator will most likely be controlled by a 9024.
Yes, a single 9024 configured for OV protection combined with
a relay watches the bus voltage and latches a relay to remove
field power on an OV condition. It must be cycled OFF/ON to
reset.
> The 9024 low voltage function will power a flashing LED. As the
> 9024 latches open in an over voltage event (triggering the LV LED)
> and requires removal of power to reset, it seems that adequate
> notice of OV power interruption would be given by the flashing LV LED
No, when configured for LV monitoring, the LED flashes
ONLY while the monitored voltage is less than 13 volts.
The light goes out by itself if the voltage rises after
an LV event.
>So is there any reason to have an OV test switch, or OV indicator light?
No, I've considered a press to test on the ov modules but
they're so reliable that I've not reached the 'tipping point'
for adding that feature. Even in the generator controllers
for the big-guys, hitting the "test" switch emulates a lot
of ov protection shutdown . . . but does not proof the
system's calibration.
I AM considering changing the relay-driven OV protection
to use a DE-energized relay to turn the alternator off.
Since the relay is the most vulnerable component of the
system, it seems like a good idea to have a broken coil
wire annunciated by failure to bring an alternator on
line. The converse philosophy increases risks for an
un-annunicated latent failure with no means for pre-flight
testing.
That's the premise unders which the quest for the elegant
design is conducted. Minimum parts and risk while
maximizing performance.
If your ov system is functioning right, an OV WARN light
will illuminate one time for a few tens of milliseconds.
If you use a relay that is energized to shut down an
offending system, then one COULD put an OV TRIP annunciator
in parallel with the relay coil. That way, if you DO get
an LV warning, you'll have additional information that
speaks to root cause . . . but it doesn't help you much
in flying the airplane.
Bob . . .
Message 6
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| Subject: | Re: Tempermental KT-76A |
I'll 2nd Tim's view. I had a KT-76A that did the same thing and I found
one of the fingers in the tray connector was slightly bent and was the
cause. I replaced that particular spring finger in the tray connector
and had no further problem with the transponder. Cost...less than a
buck for a new spring finger from my avionics shop. This was one of
those "pull your hair out" problems as it was really difficult to see
the bend when you looked at the back of the tray with a flashlight but
when I looked closely I could see that one spring finger didn't look
quite right. Good luck.
Bill
Glasair SIIS-FT
----- Original Message -----
From: Gregory Clawson
To: aeroelectric-list@matronics.com
Sent: Monday, August 16, 2010 10:46 PM
Subject: AeroElectric-List: Tempermental KT-76A
I am hoping for some guidance regarding a capricious KT-76A
transponder. It works normally for a while, and then the Mode C cuts
out. I am using a Dynon D-100 for the altitude encoder, then Dynon's
grey-code converter to send the signal to the transponder. All the
physical connections are sound, and the Dynon components are pretty
robust. Any suggestions on where I should start trouble-shooting before
I call the avionics shop guys out to the plane?
Thanks
-------------------------------------------------------------------------
-----
Checked by AVG - www.avg.com
08/16/10 13:35:00
Message 7
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| Subject: | Tempermental KT-76A |
----- Original Message -----
From: Bill Hibbing
Sent: Tuesday, August 17, 2010 11:17 AM
Subject: Re: AeroElectric-List: Tempermental KT-76A
I'll 2nd Tim's view. I had a KT-76A that did the same thing and I found
one of the fingers in the tray connector was slightly bent and was the
cause. I replaced that particular spring finger in the tray connector
and had no further problem with the transponder. Cost...less than a
buck for a new spring finger from my avionics shop. This was one of
those "pull your hair out" problems as it was really difficult to see
the bend when you looked at the back of the tray with a flashlight but
when I looked closely I could see that one spring finger didn't look
quite right. Good luck.
Bill
Glasair SIIS-FT
----- Original Message -----
From: Gregory Clawson
To: aeroelectric-list@matronics.com
Sent: Monday, August 16, 2010 10:46 PM
Subject: AeroElectric-List: Tempermental KT-76A
I am hoping for some guidance regarding a capricious KT-76A
transponder. It works normally for a while, and then the Mode C cuts
out. I am using a Dynon D-100 for the altitude encoder, then Dynon's
grey-code converter to send the signal to the transponder. All the
physical connections are sound, and the Dynon components are pretty
robust. Any suggestions on where I should start trouble-shooting before
I call the avionics shop guys out to the plane?
Thanks
-------------------------------------------------------------------------
-----
Checked by AVG - www.avg.com
08/16/10 13:35:00
Message 8
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| Subject: | Re: Tempermental KT-76A |
how can i unsubscribe to this subscription??????
it s urgent...
Stuparu A.
+40.724.53.60.70
________________________________
From: Bill Hibbing <n744bh@bellsouth.net>
Sent: Tue, August 17, 2010 7:17:10 PM
Subject: Re: AeroElectric-List: Tempermental KT-76A
I'll 2nd Tim's view. I had a KT-76A that did the same thing and I found one of
the fingers in the tray connector was slightly bent and was the cause. I
replaced that particular spring finger in the tray connector and had no further
problem with the transponder. Cost...less than a buck for a new spring finger
from my avionics shop. This was one of those "pull your hair out" problems as
it was really difficult to see the bend when you looked at the back of the tray
with a flashlight but when I looked closely I could see that one spring finger
didn't look quite right. Good luck.
Bill
Glasair SIIS-FT
----- Original Message -----
>From: Gregory Clawson
>To: aeroelectric-list@matronics.com
>Sent: Monday, August 16, 2010 10:46 PM
>Subject: AeroElectric-List: Tempermental KT-76A
>
>
>I am hoping for some guidance regarding a capricious KT-76A transponder. It
>works normally for a while, and then the Mode C cuts out. I am using a Dynon
>D-100 for the altitude encoder, then Dynon's grey-code converter to send the
>signal to the transponder. All the physical connections are sound, and the
>Dynon components are pretty robust. Any suggestions on where I should start
>trouble-shooting before I call the avionics shop guys out to the plane?
>Thanks
>
>href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matronics.com/Navigator?AeroElectric-Listhref="http://forums.matronics.com">http://forums.matronics.com
> href="http://www.matronics.com/contribution">http://www.matronics.com/c
>
________________________________
- Release Date: 08/16/10 13:35:00
>
Message 9
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| Subject: | whizzo box dual power wires |
No expert here but I have the same question. I have seen harnesses made by a
pro shop recently and they just run one wire and a short jumper over to the
second pin at the distal end. I'm thinking they want to reduce the load on
the pin, not so much the wire. In some cases like the GRT stuff and some
Garmin the extra pins are to accommodate separate busses and are diode
isolated from one another.
Tim Andres
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of woxofswa
Sent: Tuesday, August 17, 2010 8:51 AM
Subject: AeroElectric-List: whizzo box dual power wires
In the case of avionics that run dual power wires (supposedly to ease load
in each wire), is it okay to terminate the two wires into a single connector
to attach to c/b or should each have its own connector?
Thanks in advance.
--------
Myron Nelson
Mesa, AZ
Emp completed, QB wings completed, legacy build fuse in progress
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=309120#309120
Checked by AVG - www.avg.com
23:35:00
Message 10
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| Subject: | Re: Turn co-ordinator power plug |
At 10:08 AM 8/17/2010, you wrote:
>Hi Guys
>
>Where is the best place to obtain a replacement 3 pin power plug for
>a standard electric 'Turn Co-ordinator'
I think this is an MS3106E10SL3S
Described in the section beginning on page 167 of
http://aeroelectric.com/Mfgr_Data/Connectors/ITT_Cannon/Military_Aerospace.pdf
Chief Aircraft offers them at:
http://www.chiefaircraft.com/airsec/Aircraft/FlightInstruments/TurnCoordinators.html
Bob . . .
Message 11
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| Subject: | Re: whizzo box dual power wires |
At 10:51 AM 8/17/2010, you wrote:
>
>In the case of avionics that run dual power wires (supposedly to
>ease load in each wire), is it okay to terminate the two wires into
>a single connector to attach to c/b or should each have its own connector?
Multiple wires in to a single crimp are entirely
acceptable. See:
http://aeroelectric.com/articles/multiplewires/multiplewires.html
. . . although you probably don't need to to
to this effort to make sure that two wires get
properly inserted to equally share the wire-grip
space.
Bob . . .
Message 12
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| Subject: | Re: Turn co-ordinator power plug |
Hi Bob
That looks like the one: thank you
John
----- Original Message -----
From: Robert L. Nuckolls, III
To: aeroelectric-list@matronics.com
Sent: Tuesday, August 17, 2010 7:07 PM
Subject: Re: AeroElectric-List: Turn co-ordinator power plug
At 10:08 AM 8/17/2010, you wrote:
Hi Guys
Where is the best place to obtain a replacement 3 pin power plug for
a standard electric 'Turn Co-ordinator'
I think this is an MS3106E10SL3S
Described in the section beginning on page 167 of
http://aeroelectric.com/Mfgr_Data/Connectors/ITT_Cannon/Military_Aerospac
e.pdf
Chief Aircraft offers them at:
http://www.chiefaircraft.com/airsec/Aircraft/FlightInstruments/TurnCoordi
nators.html
Bob . . .
Message 13
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| Subject: | Who sells 26 gage wire |
I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe I can't
find some. I need maybe just one foot. It's for my Dynon ammeter shunt. They
suggest using 26 gage to make fusible links for the two connections. It seems
by far the simplest way to do it if I can find some............Geoff
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=309161#309161
Message 14
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| Subject: | Who sells 26 gage wire |
Visit Uncle Ray
http://www.rayallencompany.com/products/accessories.html
Glenn E. Long
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Geoff
Heap
Sent: Tuesday, August 17, 2010 4:05 PM
Subject: AeroElectric-List: Who sells 26 gage wire
<stol10@comcast.net>
I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe
I can't find some. I need maybe just one foot. It's for my Dynon ammeter
shunt. They suggest using 26 gage to make fusible links for the two
connections. It seems by far the simplest way to do it if I can find
some............Geoff
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=309161#309161
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| Subject: | Who sells 26 gage wire |
Geoff,
I have a spool of it. Send me your address and I'll put a few feet in an
envelope. tomhanaway***at***Comcast.net
Tom Hanaway
RV-10
Boynton Beach, FL
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Geoff
Heap
Sent: Tuesday, August 17, 2010 4:05 PM
Subject: AeroElectric-List: Who sells 26 gage wire
I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe I
can't find some. I need maybe just one foot. It's for my Dynon ammeter
shunt. They suggest using 26 gage to make fusible links for the two
connections. It seems by far the simplest way to do it if I can find
some............Geoff
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=309161#309161
Message 16
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| Subject: | Re: Who sells 26 gage wire |
I couldn't find it either. I ended up with an inline fuse.
--------
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=309168#309168
Message 17
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| Subject: | Re: Who sells 26 gage wire |
At 03:04 PM 8/17/2010, you wrote:
>
>I've tried Assco, Wicks, B&C specialty and Radio shack. I can't
>believe I can't find some. I need maybe just one foot. It's for my
>Dynon ammeter shunt. They suggest using 26 gage to make fusible
>links for the two connections. It seems by far the simplest way to
>do it if I can find some............Geoff
go up to 24awg and increase size of
lead wires to 20awg. Where did I call
out 26AWG? That's really hard to find
and I can't imagine calling it out.
Bob . . .
Message 18
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| Subject: | Re: Tempermental KT-76A |
At 12:16 PM 8/17/2010, you wrote:
>how can i unsubscribe to this subscription??????
>it s urgent...
>
>
It appears that you are subscribed to every forum
on the Matronics servers. I imagine that your
email load is pretty large. You goto this link
http://www.matronics.com/subscribe/
and enter your email address in the box,
hit 'uncheck all' and 'subscription' and
then 'execute'.
Bob . . .
Message 19
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| Subject: | Re: Who sells 26 gage wire |
At 03:49 PM 8/17/2010, you wrote:
>
>I couldn't find it either. I ended up with an inline fuse.
That works too. But I need to fix the 26AWG callout.
Bob . . .
Message 20
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| Subject: | Re: Who sells 26 gage wire |
The "they" he refers to is Dynon. Their harness is 22 AWG.
FWIW, I don't have any protection on mine.
On Tue, Aug 17, 2010 at 4:54 PM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> nuckolls.bob@aeroelectric.com>
>
> At 03:04 PM 8/17/2010, you wrote:
>
>> >
>>
>> I've tried Assco, Wicks, B&C specialty and Radio shack. I can't believe I
>> can't find some. I need maybe just one foot. It's for my Dynon ammeter
>> shunt. They suggest using 26 gage to make fusible links for the two
>> connections. It seems by far the simplest way to do it if I can find
>> some............Geoff
>>
>
> go up to 24awg and increase size of
> lead wires to 20awg. Where did I call
> out 26AWG? That's really hard to find
> and I can't imagine calling it out.
>
>
> Bob . . .
>
>
--
Rob Kochman
RV-10 "Finishing" Kit
Woodinville, WA (near Seattle)
http://kochman.net/N819K
Message 21
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| Subject: | Re: 9024 module lights, labeling |
> No, when configured for LV monitoring, the LED flashes
> ONLY while the monitored voltage is less than 13 volts.
> The light goes out by itself if the voltage rises after
> an LV event.
So in an OV event, power to the 9024 module (and LV LED) latches open, preventing
the LV monitoring function from operating?
I would like to have some indication, besides noticing my voltmeter indication
of low voltage, that my stby alt dropped out and that I was now riding on the
battery alone (assuming that I was using the stby alt because my main alt dropped
out) . The AFS EFIS volt meter alarm output can be wired to an LED for that
purpose.
JB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=309223#309223
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