Today's Message Index:
----------------------
1. 02:53 AM - Air pressure switch (Gianni Zuliani)
2. 04:59 AM - Re: Air pressure switch (Trampas)
3. 04:59 AM - Re: Air pressure switch (Ken)
4. 05:05 AM - Re: Air pressure switch (plaurence@the-beach.net)
5. 05:20 AM - No more fuel to transfer (Hans Teijgeler)
6. 05:55 AM - Re: Stand-by and Second Alternators (subject line change) (Emrath)
7. 06:06 AM - Re: No more fuel to transfer (pengilly@southwest.com.au)
8. 06:12 AM - Re: No more fuel to transfer (Bob Kuc)
9. 06:41 AM - SD-8 on a Rotax 914 (Kevin And Ann Klinefelter)
10. 06:59 AM - Re: Air pressure switch (Joel Jacobs)
11. 07:00 AM - Re: Battery cables (Angier & Gynna)
12. 07:15 AM - Re: Air pressure switch (James Redmon)
13. 07:26 AM - PMA-4000 audio panel (Jim Stone)
14. 08:25 AM - Re: PMA-4000 audio panel (James E. Clark)
15. 08:28 AM - Re: PMA-4000 audio panel (Denis Walsh)
16. 09:11 AM - Re: Air pressure switch (Werner Schneider)
17. 10:00 AM - What is this device - again as I seriously doubt that it is a capicator (Hal Kempthorne)
18. 10:34 AM - Re: What is this device - again as I seriously (rv-9a-online)
19. 10:47 AM - Re: What is this device - again as I seriously (Richard Tasker)
20. 11:01 AM - Re: PMA-4000 audio panel (Jim Stone)
21. 11:02 AM - Re: PMA-4000 audio panel (Jim Stone)
22. 11:16 AM - Re: What is this device - again as I seriously doubt that it is a capicator (Matt Prather)
23. 11:22 AM - Re: PMA-4000 audio panel (James E. Clark)
24. 11:27 AM - Re: What is this device - again as I seriously doubt that it is a capicator (Matt Prather)
25. 11:32 AM - ND Alternators (Richard Garforth)
26. 11:36 AM - transponder antenna cable near other cables? (Mickey Coggins)
27. 11:42 AM - Re: PMA-4000 audio panel (Mickey Coggins)
28. 03:05 PM - Re: Re: Battery cables (Ken)
29. 03:05 PM - Re: ND Alternators (Ken)
30. 06:04 PM - equipment amp loads? (Mark Hall)
31. 07:01 PM - Re: [Stinson] Genave marker receiver pinout? (cgalley)
32. 07:34 PM - Re: Air pressure switch (Richard Riley)
33. 09:37 PM - Switch type (Scott Winn (Matronics List))
Message 1
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| Subject: | Air pressure switch |
--> AeroElectric-List message posted by: "Gianni Zuliani" <gz@comgz.com>
Good morning listers,
On my Stag-EZRG canard I'd like to install a device which prevents
retracting the landing gear below 90 Kt and arms an alarm in case my
airspeed goes below 90 Kt and my landing gear is still retracted. To this
end I'm looking for an air pressure switch which senses very low anemometric
pressure ( I've calculated 0.2 PSI).
Has anybody already faced this application or searched for such a switch?
Thanks.
Gianni Zuliani
Tel/Fax +41 91 9710850
Mobile +41 79 3373439
Long-Ez >> Stag-Ez >>Stag-EzRG
http://www.comgz.com/tristar.htm
Message 2
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| Subject: | Air pressure switch |
--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
Goto www.digikey.com and search for MPX pressure sensors. These pressure
sensors will do what you want. Note you will want a differential pressure
sensor connected to pitot and static ports.
Regards,
Trampas
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Gianni
Zuliani
Subject: AeroElectric-List: Air pressure switch
--> AeroElectric-List message posted by: "Gianni Zuliani" <gz@comgz.com>
Good morning listers,
On my Stag-EZRG canard I'd like to install a device which prevents
retracting the landing gear below 90 Kt and arms an alarm in case my
airspeed goes below 90 Kt and my landing gear is still retracted. To this
end I'm looking for an air pressure switch which senses very low anemometric
pressure ( I've calculated 0.2 PSI).
Has anybody already faced this application or searched for such a switch?
Thanks.
Gianni Zuliani
Tel/Fax +41 91 9710850
Mobile +41 79 3373439
Long-Ez >> Stag-Ez >>Stag-EzRG
http://www.comgz.com/tristar.htm
Message 3
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| Subject: | Re: Air pressure switch |
--> AeroElectric-List message posted by: Ken <klehman@albedo.net>
A motorola solid state pressure sensor/Digi-Key MPXV5004GC6U-ND will do
it. $26., good for 0 to 4 kpa or 0 to 0.6 psi. Outputs 0 to 5 volts so
is a good match for a comparator with a bit of hysterisis and set the
trip point for 90 Kt. or wherever. Or there are some commercial gear
alarms available if you don't want to do it yourself.
Ken
Gianni Zuliani wrote:
>--> AeroElectric-List message posted by: "Gianni Zuliani" <gz@comgz.com>
>
>Good morning listers,
>On my Stag-EZRG canard I'd like to install a device which prevents
>retracting the landing gear below 90 Kt and arms an alarm in case my
>airspeed goes below 90 Kt and my landing gear is still retracted. To this
>end I'm looking for an air pressure switch which senses very low anemometric
>pressure ( I've calculated 0.2 PSI).
>Has anybody already faced this application or searched for such a switch?
>Thanks.
>Gianni Zuliani
>Tel/Fax +41 91 9710850
>Mobile +41 79 3373439
>Long-Ez >> Stag-Ez >>Stag-EzRG
>http://www.comgz.com/tristar.htm
>
>
Message 4
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| Subject: | Re: Air pressure switch |
--> AeroElectric-List message posted by: plaurence@the-beach.net
I may have some info for you. We installed a device like this on a Velocity. When
my
hangar mate gets back into town I'll get the info for you.
Peter Laurence
On 25 Feb 2005 at 11:48, Gianni Zuliani wrote:
> --> AeroElectric-List message posted by: "Gianni Zuliani"
> <gz@comgz.com>
>
> Good morning listers,
> On my Stag-EZRG canard I'd like to install a device which prevents
> retracting the landing gear below 90 Kt and arms an alarm in case my
> airspeed goes below 90 Kt and my landing gear is still retracted. To
> this end I'm looking for an air pressure switch which senses very low
> anemometric pressure ( I've calculated 0.2 PSI). Has anybody already
> faced this application or searched for such a switch? Thanks. Gianni
> Zuliani Tel/Fax +41 91 9710850 Mobile +41 79 3373439 Long-Ez >>
> Stag-Ez >>Stag-EzRG http://www.comgz.com/tristar.htm
>
>
> advertising on the Matronics Forums.
> >
>
>
>
>
Message 5
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|
| Subject: | No more fuel to transfer |
--> AeroElectric-List message posted by: "Hans Teijgeler" <hans@jodel.com>
Hi guys,
My Jodel has a two-tank setup with a main tank from which the engine gets
its fuel and an aux tank under the rear bench. There is a facet fuel pump to
transfer fuel from the aux to the main tank.
The problem: How do I detect when to shut down the transfer pump when the
aux tank runs dry?
I could think of a flow switch in the fuel line. Probably works well, but is
fairly expensive
I could envision using a pressure switch right after the fuel pump, but
before the inline filter and the 6 ft of fuel line. If the switch is
sensitive enough, it will at least allow me to light a LED and/or a buzzer
to warn me. Question would be if I could locate a pressure switch with
enough sensitivity to trigger on this low pressure.
Or option three: and here's my question: couldn't I simply monitor the
current that goes to the fuel pump and deduct from that wether the pump is
pumping fuel or air? And then what? A shunt, some electronics, a comparator
and a light + buzzer??
Thanks!
Hans
Message 6
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|
| Subject: | Re: Stand-by and Second Alternators (subject line change) |
--> AeroElectric-List message posted by: "Emrath" <emrath@comcast.net>
If anyone manages to fit one of the J.D. units onto a Lyc like the SD8 is
mounted, I'm interested in do this too. The cost seems very favorable for
the J.D. device. A while back there was some "chatter" about the SD8 having
output problems at both low RPM and at high temperatures. The low RPM issue
isn't much of a factor in flight but not being able to actually put out
8amps at it rated rpm due to temperature issues is not helpful if this is
the case. Bob, did this testing ever get completed?
Marty in Brentwood TN
Time: 07:05:56 PM PST US From: "Dean" <dvanwinkle@royell.net> Subject:
Re: Mixing Z13 and Z14
--> AeroElectric-List message posted by: "Dean"
<dvanwinkle@royell.net>
Vern
Try http://home.hiwaay.net/~langford/corvair/dynamo.html . It has
some
of the info that you are looking for.
Dean Van Winkle
RV-9A Fuselage/Finish
----- Original Message -----
From: "Rick Girard" <fly.ez@verizon.net>
Subject: Re: AeroElectric-List: Re: Mixing Z13 and Z14
> --> AeroElectric-List message posted by: Rick Girard
<fly.ez@verizon.net>
>
> Vern, Your local John Deere dealer has PM alternators up to 60 amps,
> IIRC. Sorry I don't have part numbers, but you might be able to find
> them by searching the archives of the Aircraft Rotary Engine (ACRE)
web
> site.
>
> Rick Girard
>
>
Message 7
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| Subject: | Re: No more fuel to transfer |
--> AeroElectric-List message posted by: pengilly@southwest.com.au
Try a pillar point fuel tank monitor this is what you need
http://www.ppavionics.com/
Regards
Paul P
Glasair in progress
> --> AeroElectric-List message posted by: "Hans Teijgeler" <hans@jodel.com>
>
> Hi guys,
>
> My Jodel has a two-tank setup with a main tank from which the engine gets
> its fuel and an aux tank under the rear bench. There is a facet fuel pump
> to
> transfer fuel from the aux to the main tank.
>
> The problem: How do I detect when to shut down the transfer pump when the
> aux tank runs dry?
>
> I could think of a flow switch in the fuel line. Probably works well, but
> is
> fairly expensive
>
> I could envision using a pressure switch right after the fuel pump, but
> before the inline filter and the 6 ft of fuel line. If the switch is
> sensitive enough, it will at least allow me to light a LED and/or a buzzer
> to warn me. Question would be if I could locate a pressure switch with
> enough sensitivity to trigger on this low pressure.
>
> Or option three: and here's my question: couldn't I simply monitor the
> current that goes to the fuel pump and deduct from that wether the pump is
> pumping fuel or air? And then what? A shunt, some electronics, a
> comparator
> and a light + buzzer??
>
> Thanks!
>
> Hans
>
>
Message 8
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|
| Subject: | Re: No more fuel to transfer |
--> AeroElectric-List message posted by: "Bob Kuc" <bkuc1@verizon.net>
If you can, you can put in a liquid sensor and mount it low. When it comes
on, you have very little fuel left. If you have a fuel guage in the main
tank, then another indication would be that the fuel guage stops rising.
Bob Kuc
----- Original Message -----
From: "Hans Teijgeler" <hans@jodel.com>
Subject: AeroElectric-List: No more fuel to transfer
> --> AeroElectric-List message posted by: "Hans Teijgeler" <hans@jodel.com>
>
> Hi guys,
>
> My Jodel has a two-tank setup with a main tank from which the engine gets
> its fuel and an aux tank under the rear bench. There is a facet fuel pump
to
> transfer fuel from the aux to the main tank.
>
> The problem: How do I detect when to shut down the transfer pump when the
> aux tank runs dry?
>
> I could think of a flow switch in the fuel line. Probably works well, but
is
> fairly expensive
>
> I could envision using a pressure switch right after the fuel pump, but
> before the inline filter and the 6 ft of fuel line. If the switch is
> sensitive enough, it will at least allow me to light a LED and/or a buzzer
> to warn me. Question would be if I could locate a pressure switch with
> enough sensitivity to trigger on this low pressure.
>
> Or option three: and here's my question: couldn't I simply monitor the
> current that goes to the fuel pump and deduct from that wether the pump is
> pumping fuel or air? And then what? A shunt, some electronics, a
comparator
> and a light + buzzer??
>
> Thanks!
>
> Hans
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Anti-Virus.
> Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2/22/2005
>
>
--
Checked by AVG Anti-Virus.
Message 9
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|
| Subject: | SD-8 on a Rotax 914 |
2.00 DATE_IN_FUTURE_24_48 Date": is.24.to.48.hours.after.Received:date@matronics.com
--> AeroElectric-List message posted by: Kevin And Ann Klinefelter <kevann@verizon.net>
Hi All
I have a 914 which is dependent on electric fuel pumps. I am thinking of
putting an SD-8 on the empty vacume pump pad. Does anyone know what
output I might expect from the SD-8 in cruise, say 5200 rpm?
Kevin
Europa nearing completion, no electrical plan started yet.
Message 10
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| Subject: | Re: Air pressure switch |
--> AeroElectric-List message posted by: "Joel Jacobs" <jj@sdf.lonestar.org>
My high efficient furnace has a combustion blower to blow the gasses
outside. There is a pressure switch to sense that the blower is running.
It's about 3" diameter diaphragm type switch with a hose to the blower
housing. Not sure what the trip point is but it's likely low and may be
worth looking at.. Do not archive
Joel
----- Original Message -----
From: "Gianni Zuliani" <gz@comgz.com>
Subject: AeroElectric-List: Air pressure switch
> --> AeroElectric-List message posted by: "Gianni Zuliani" <gz@comgz.com>
>
> Good morning listers,
> On my Stag-EZRG canard I'd like to install a device which prevents
> retracting the landing gear below 90 Kt and arms an alarm in case my
> airspeed goes below 90 Kt and my landing gear is still retracted. To this
> end I'm looking for an air pressure switch which senses very low
anemometric
> pressure ( I've calculated 0.2 PSI).
> Has anybody already faced this application or searched for such a switch?
> Thanks.
> Gianni Zuliani
> Tel/Fax +41 91 9710850
> Mobile +41 79 3373439
> Long-Ez >> Stag-Ez >>Stag-EzRG
> http://www.comgz.com/tristar.htm
>
>
Message 11
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|
| Subject: | Re: Battery cables |
--> AeroElectric-List message posted by: Angier & Gynna <N2811A@comcast.net>
The battery is behind the co-pilot seat in my Lancair. When installing the +/-
cables going forward through the firewall, should these cables have several twists
or is it ok to simply run then parallel to eachother?
>
> Thanks,
>
> Angier Ames
Message 12
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| Subject: | Re: Air pressure switch |
--> AeroElectric-List message posted by: "James Redmon" <james@berkut13.com>
> On my Stag-EZRG canard I'd like to install a device which prevents
> retracting the landing gear below 90 Kt and arms an alarm in case my
> airspeed goes below 90 Kt and my landing gear is still retracted. To this
> end I'm looking for an air pressure switch which senses very low
> anemometric
> pressure ( I've calculated 0.2 PSI).
> Has anybody already faced this application or searched for such a switch?
Airspeed Switch
Value Engineered Products
3541 Old Conejo Road, Ste #117
Newbury Park, CA 91320
(805) 499-1959
(805) 499-1955
email: vep1@pacbell.net
www.veproducts.com
Part #654A53.2 set at 80 knots
It's a little pricy, but it works perfectly. I've installed one on two
Berkuts now.
James Redmon
Berkut #013 N97TX
http://www.berkut13.com
Message 13
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|
| Subject: | PMA-4000 audio panel |
--> AeroElectric-List message posted by: "Jim Stone" <jrstone@insightbb.com>
Can anyone recommend (or not), the PMA-4000 audio panel from PS engineering?
I'll have two radios, one nav, and want to have a high quality ICS with music input.
This unit is not stereo but I am under the impression that having stereo
is not really important due to the high ambient noise levels. Is this true?
Thanks,
Jim
Harmon Rocket
final year (2nd anniversary)
Message 14
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| Subject: | PMA-4000 audio panel |
--> AeroElectric-List message posted by: "James E. Clark" <james@nextupventures.com>
I can definitely tell the difference between stereo and mono. Especially
with good ANR headsets.
You might want to get a stereo model now and not regret it later if you plan
to listen to "tunes" in flight.
James
| -----Original Message-----
| From: owner-aeroelectric-list-server@matronics.com [mailto:owner-
| aeroelectric-list-server@matronics.com] On Behalf Of Jim Stone
| Sent: Friday, February 25, 2005 10:24 AM
| To: aeroelectric-list@matronics.com
| Subject: AeroElectric-List: PMA-4000 audio panel
|
| --> AeroElectric-List message posted by: "Jim Stone"
| <jrstone@insightbb.com>
|
| Can anyone recommend (or not), the PMA-4000 audio panel from PS
| engineering?
|
| I'll have two radios, one nav, and want to have a high quality ICS with
| music input. This unit is not stereo but I am under the impression that
| having stereo is not really important due to the high ambient noise
| levels. Is this true?
|
| Thanks,
| Jim
| Harmon Rocket
| final year (2nd anniversary)
|
|
|
|
|
Message 15
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| Subject: | Re: PMA-4000 audio panel |
--> AeroElectric-List message posted by: Denis Walsh <denis.walsh@comcast.net>
One man's opinion on stereo:
I have a mono intercom and wish I had gone with stereo.
My original thinking was as you said, high noise level in cockpit, plus
my ears are shot from overexposure to jet noise and aging of same.
HOWEVER what has changed in this century is the ANR headsets, and
digital music. Whole nother ball game. Noise goes away. Music sounds
wonderful.
Go for the stereo. Hang the cost. Full speed ahead.
Unless of course you are just going to fly that rocket like a spam
can. Music is not essential for straight and level flight.
Denis
On Feb 25, 2005, at 8:24 AM, Jim Stone wrote:
> --> AeroElectric-List message posted by: "Jim Stone"
> <jrstone@insightbb.com>
>
> Can anyone recommend (or not), the PMA-4000 audio panel from PS
> engineering?
>
> I'll have two radios, one nav, and want to have a high quality ICS
> with music input. This unit is not stereo but I am under the
> impression that having stereo is not really important due to the high
> ambient noise levels. Is this true?
>
> Thanks,
> Jim
> Harmon Rocket
> final year (2nd anniversary)
>
>
Message 16
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|
| Subject: | Re: Air pressure switch |
--> AeroElectric-List message posted by: "Werner Schneider" <glastar@gmx.net>
Gianni,
I have a switch built in from Conrad electronics which switches on my Hoobs
meter when I reach 43 kts. It's just to cold in Buttwil to check, but should
be no problem.
Werner (HB-YKP)
----- Original Message -----
From: <plaurence@the-beach.net>
Subject: Re: AeroElectric-List: Air pressure switch
> --> AeroElectric-List message posted by: plaurence@the-beach.net
>
> I may have some info for you. We installed a device like this on a
Velocity. When my
> hangar mate gets back into town I'll get the info for you.
>
> Peter Laurence
>
> On 25 Feb 2005 at 11:48, Gianni Zuliani wrote:
>
> > --> AeroElectric-List message posted by: "Gianni Zuliani"
> > <gz@comgz.com>
> >
> > Good morning listers,
> > On my Stag-EZRG canard I'd like to install a device which prevents
> > retracting the landing gear below 90 Kt and arms an alarm in case my
> > airspeed goes below 90 Kt and my landing gear is still retracted. To
> > this end I'm looking for an air pressure switch which senses very low
> > anemometric pressure ( I've calculated 0.2 PSI). Has anybody already
> > faced this application or searched for such a switch? Thanks. Gianni
> > Zuliani Tel/Fax +41 91 9710850 Mobile +41 79 3373439 Long-Ez >>
> > Stag-Ez >>Stag-EzRG http://www.comgz.com/tristar.htm
> >
> >
> > advertising on the Matronics Forums.
> > >
> >
> >
> >
> >
>
>
Message 17
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|
| Subject: | What is this device - again as I seriously doubt that |
it is a capicator
--> AeroElectric-List message posted by: Hal Kempthorne <hal_kempthorne@sbcglobal.net>
I know I have already been told what it is. Can someone say for sure and tell
me what the numbers mean? Where can I get another one? I don't see anything
in Digikey catalog.
I've been told it is a capacitor, a resistor and a MOV.
hal
What the heck is this part? It is red, about half an inch square and about 1/16th
thick plastic with two leads .
Marked
ERIE
3.3 M
100V
Message 18
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| Subject: | Re: What is this device - again as I seriously |
doubt that it is a capicator
--> AeroElectric-List message posted by: rv-9a-online <rv-9a-online@telus.net>
Here's my take:
Murata is the manufacturer. Erie is no longer in business, purchased by
Murata apparently.
check http://www.murata.com/catalog/c49e15.pdf
It looks like a 3.3 nF 20% (Z5U) capacitor. Murata does not specify
the parts the same, so the nF is inferred. It's too big to by 3.3 pF,
and too small to be 3.3 uF.
A photo would be useful in identification.
Vern Little
Hal Kempthorne wrote:
>--> AeroElectric-List message posted by: Hal Kempthorne <hal_kempthorne@sbcglobal.net>
>
>I know I have already been told what it is. Can someone say for sure and tell
me what the numbers mean? Where can I get another one? I don't see anything
in Digikey catalog.
>
>I've been told it is a capacitor, a resistor and a MOV.
>
>hal
>
>
>What the heck is this part? It is red, about half an inch square and about 1/16th
thick plastic with two leads .
>
>Marked
>
>ERIE
>
>3.3 M
>
>100V
>
>
>
>
Message 19
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| Subject: | Re: What is this device - again as I seriously |
doubt that it is a capicator
--> AeroElectric-List message posted by: Richard Tasker <retasker@optonline.net>
It is probably a capacitor. With nothing more than the markings and a
general description it is really hard to specifically identify it.
Where is it? What is it connected to?
It is very likely NOT a resistor. There are hardly any resistors that
come in a thin square package (none that I know of and I am an EE).
Do you have any sort of test equipment? A DVM even?
Erie no longer exists, but I know that they made capacitors when they
did. I do not know whether they made MOVs but probably not.
A picture would be nice...
Dick Tasker
Hal Kempthorne wrote:
>--> AeroElectric-List message posted by: Hal Kempthorne <hal_kempthorne@sbcglobal.net>
>
>I know I have already been told what it is. Can someone say for sure and tell
me what the numbers mean? Where can I get another one? I don't see anything
in Digikey catalog.
>
>I've been told it is a capacitor, a resistor and a MOV.
>
>hal
>
>
>What the heck is this part? It is red, about half an inch square and about 1/16th
thick plastic with two leads .
>
>Marked
>
>ERIE
>
>3.3 M
>
>100V
>
>
>
>
Message 20
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| Subject: | Re: PMA-4000 audio panel |
--> AeroElectric-List message posted by: "Jim Stone" <jrstone@insightbb.com>
Thanks, Tunes are very important.
Can you recommend a great unit?
Jim
----- Original Message -----
From: "James E. Clark" <james@nextupventures.com>
Subject: RE: AeroElectric-List: PMA-4000 audio panel
> --> AeroElectric-List message posted by: "James E. Clark"
> <james@nextupventures.com>
>
> I can definitely tell the difference between stereo and mono. Especially
> with good ANR headsets.
>
> You might want to get a stereo model now and not regret it later if you
> plan
> to listen to "tunes" in flight.
>
> James
>
>
> that
>
>
>
Message 21
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| Subject: | Re: PMA-4000 audio panel |
--> AeroElectric-List message posted by: "Jim Stone" <jrstone@insightbb.com>
Alright, now to find a high quality Stereo unit.
Thanks,
Jim
----- Original Message -----
From: "Denis Walsh" <denis.walsh@comcast.net>
Subject: Re: AeroElectric-List: PMA-4000 audio panel
> --> AeroElectric-List message posted by: Denis Walsh
> <denis.walsh@comcast.net>
>
> One man's opinion on stereo:
>
> I have a mono intercom and wish I had gone with stereo.
>
> My original thinking was as you said, high noise level in cockpit, plus
> my ears are shot from overexposure to jet noise and aging of same.
>
> HOWEVER what has changed in this century is the ANR headsets, and
> digital music. Whole nother ball game. Noise goes away. Music sounds
> wonderful.
>
> Go for the stereo. Hang the cost. Full speed ahead.
>
> Unless of course you are just going to fly that rocket like a spam
> can. Music is not essential for straight and level flight.
>
> Denis
> On Feb 25, 2005, at 8:24 AM, Jim Stone wrote:
>
>> --> AeroElectric-List message posted by: "Jim Stone"
>> <jrstone@insightbb.com>
>>
>> Can anyone recommend (or not), the PMA-4000 audio panel from PS
>> engineering?
>>
>> I'll have two radios, one nav, and want to have a high quality ICS
>> with music input. This unit is not stereo but I am under the
>> impression that having stereo is not really important due to the high
>> ambient noise levels. Is this true?
>>
>> Thanks,
>> Jim
>> Harmon Rocket
>> final year (2nd anniversary)
>>
>>
>
>
>
Message 22
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| Subject: | Re: What is this device - again as I seriously doubt |
that it is a capicator
<aeroelectric-list@matronics.com.doubt.that.it.is.a.capicator>
--> AeroElectric-List message posted by: "Matt Prather" <mprather@spro.net>
Agree.. And I would add that the particular value of the capacitor is not
of any real concern. I am not even convinced that a capacitor that small
will have a beneficial effect on system performance. Capacitors are added
to a bus to reduce noise propagation at a particular point on the bus.
Generally, the smaller the capacitor, because of reduced lead inductance,
the higher the frequency that it is useful for filtering. Conversely, the
smaller
the capacitor, the less it is able to damp the large voltage swings that may
be on a power bus. I would guess that a cap that is as physically small
as you
have described would be most effective at reducing electrical noise in the RF
frequency range. Chances are that it was added to combat some kind of
noise that was audible on the radio.
Is the capacitor damaged?
Getting the absolutely correct capacitor value is only critical where you
intend to design a resonant circuit which will oscillate at a particular
frequency,
or timing.
Regards,
Matt-
> --> AeroElectric-List message posted by: Richard Tasker
> <retasker@optonline.net>
>
> It is probably a capacitor. With nothing more than the markings and a
> general description it is really hard to specifically identify it.
> Where is it? What is it connected to?
>
> It is very likely NOT a resistor. There are hardly any resistors that
> come in a thin square package (none that I know of and I am an EE).
>
> Do you have any sort of test equipment? A DVM even?
>
> Erie no longer exists, but I know that they made capacitors when they
> did. I do not know whether they made MOVs but probably not.
>
> A picture would be nice...
>
> Dick Tasker
>
> Hal Kempthorne wrote:
>
>>--> AeroElectric-List message posted by: Hal Kempthorne
>> <hal_kempthorne@sbcglobal.net>
>>
>>I know I have already been told what it is. Can someone say for sure
>> and tell me what the numbers mean? Where can I get another one? I
>> don't see anything in Digikey catalog.
>>
>>I've been told it is a capacitor, a resistor and a MOV.
>>
>>hal
>>
>>
>>What the heck is this part? It is red, about half an inch square and
>> about 1/16th thick plastic with two leads .
>>
>>Marked
>>
>>ERIE
>>
>>3.3 M
>>
>>100V
>>
>>
>>
>>
>
>
Message 23
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| Subject: | PMA-4000 audio panel |
--> AeroElectric-List message posted by: "James E. Clark" <james@nextupventures.com>
Cannot recommend a great unit as I don't know yet.
I am considering the Garmin (because the radios are gonna be Garmin) GMA340
***BUT*** may revisit and go with PS Engineering.
See http://www.ps-engineering.com/audio.shtml .
In two airplanes at present I use the DRE 244e and it works great. But it is
not an audio panel ... just an intercom.
James
{SNIP}
| Subject: Re: AeroElectric-List: PMA-4000 audio panel
|
| --> AeroElectric-List message posted by: "Jim Stone"
| <jrstone@insightbb.com>
|
| Thanks, Tunes are very important.
| Can you recommend a great unit?
| Jim
| ----- Original Message -----
{SNIP}
Message 24
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| Subject: | Re: What is this device - again as I seriously doubt |
that it is a capicator
--> AeroElectric-List message posted by: "Matt Prather" <mprather@spro.net>
One more thing... I found a pretty handy guide for identifying capacitor
values.
http://www.twysted-pair.com/capidcds.htm
Looks to me like you have a 3.3uF cap there.
Google is great.
Regards,
Matt-
> --> AeroElectric-List message posted by: Richard Tasker
> <retasker@optonline.net>
>
> It is probably a capacitor. With nothing more than the markings and a
> general description it is really hard to specifically identify it.
> Where is it? What is it connected to?
>
> It is very likely NOT a resistor. There are hardly any resistors that
> come in a thin square package (none that I know of and I am an EE).
>
> Do you have any sort of test equipment? A DVM even?
>
> Erie no longer exists, but I know that they made capacitors when they
> did. I do not know whether they made MOVs but probably not.
>
> A picture would be nice...
>
> Dick Tasker
>
> Hal Kempthorne wrote:
>
>>--> AeroElectric-List message posted by: Hal Kempthorne
>> <hal_kempthorne@sbcglobal.net>
>>
>>I know I have already been told what it is. Can someone say for sure
>> and tell me what the numbers mean? Where can I get another one? I
>> don't see anything in Digikey catalog.
>>
>>I've been told it is a capacitor, a resistor and a MOV.
>>
>>hal
>>
>>
>>What the heck is this part? It is red, about half an inch square and
>> about 1/16th thick plastic with two leads .
>>
>>Marked
>>
>>ERIE
>>
>>3.3 M
>>
>>100V
>>
>>
>>
>>
>
>
Message 25
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--> AeroElectric-List message posted by: "Richard Garforth" <richard@hawk.flyer.co.uk>
Ken,
Thanks for the ideas - unfortunately whoever rebuilds these Alternators for Vans
blasts the numbers away when they clean up the casings !
Richard
Message 26
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| Subject: | transponder antenna cable near other cables? |
--> AeroElectric-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
Hi,
The most convenient routing for my transponder antenna cable is
along with cables for my flap motor cables, autopilot servo
cables, and aileron trim cables. Does anyone know if this
might cause any problems with electrical interference?
Thanks,
Mickey
--
Mickey Coggins
http://www.rv8.ch/
#82007 Wiring
Message 27
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| Subject: | Re: PMA-4000 audio panel |
--> AeroElectric-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
I'm also considering the Garmin GMA 340. It's not too expensive,
actually cheaper than the equivalent PMA unit, and seems to do
a lot. All our club's Pipers have them, and they seem to work
fine. It is really overkill for what I need, but I can't find
a cheap stereo equivalent of the PMA-4000, unfortunately.
Mickey
James E. Clark wrote:
> --> AeroElectric-List message posted by: "James E. Clark" <james@nextupventures.com>
>
> Cannot recommend a great unit as I don't know yet.
>
> I am considering the Garmin (because the radios are gonna be Garmin) GMA340
> ***BUT*** may revisit and go with PS Engineering.
>
> See http://www.ps-engineering.com/audio.shtml .
>
> In two airplanes at present I use the DRE 244e and it works great. But it is
> not an audio panel ... just an intercom.
>
> James
>
>
> {SNIP}
>
> {SNIP}
>
--
Mickey Coggins
http://www.rv8.ch/
#82007 Wiring
Message 28
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| Subject: | Re: Battery cables |
--> AeroElectric-List message posted by: Ken <klehman@albedo.net>
Mine are all parallel. It's neater and just as effective as twisting
AFAIK. Either way should cancel the magnetic effects.
The only ones I twisted were the AC feed from the PM alternator to make
sure they stayed close together when bundled.
Ken
Angier & Gynna wrote:
>--> AeroElectric-List message posted by: Angier & Gynna <N2811A@comcast.net>
>
>The battery is behind the co-pilot seat in my Lancair. When installing the +/-
cables going forward through the firewall, should these cables have several twists
or is it ok to simply run then parallel to eachother?
>
>
>>Thanks,
>>
>>Angier Ames
>>
>>
Message 29
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| Subject: | Re: ND Alternators |
--> AeroElectric-List message posted by: Ken <klehman@albedo.net>
Too bad, that probably turns it into a throw away item and it says a lot
about the rebuilder. Bet the rebuilders name is not on it either then!
Ken
Richard Garforth wrote:
>--> AeroElectric-List message posted by: "Richard Garforth" <richard@hawk.flyer.co.uk>
>
>Ken,
>
>Thanks for the ideas - unfortunately whoever rebuilds these Alternators for Vans
blasts the numbers away when they clean up the casings !
>
>
>Richard
>
>
>
Message 30
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| Subject: | equipment amp loads? |
--> AeroElectric-List message posted by: "Mark Hall" <mhall67@carolina.rr.com>
I thought some time ago I saw a list on the web that had amp load for equipment
(ie Garmin engine monoters and such)? Could any one point me to that sight?
Regards,
Mark
Message 31
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|
| Subject: | Re: [Stinson] Genave marker receiver pinout? |
--> AeroElectric-List message posted by: "cgalley" <cgalley@qcbc.org>
http://www.aeroelectric.com/Installation_Data Bob Nuckolls has a data base of radio pin-outs/ But it doesn't seem to be on the site.
I am forwarding your request to the aeroelectric-list@matronics list
Cy Galley
EAA Safety Programs Editor
Always looking for ideas and articles for EAA Sport Pilot
----- Original Message -----
From: fixbritishcars
To: Stinson@yahoogroups.com
Sent: Friday, February 25, 2005 9:27 AM
Subject: [Stinson] Genave marker receiver pinout?
I an have a Genave Delta 300 marker beacon receiver that I want to
install in my Stinson. I have no diagram for it. Does anyone have the
pin out for this? If so please e-mail me, phone me 314-808-0281 or
fax inro to 573-237-3605. MANY THANKS
Andy
8968K
ADVERTISEMENT
a.. To visit your group on the web, go to:
http://groups.yahoo.com/group/Stinson/
b.. To unsubscribe from this group, send an email to:
Stinson-unsubscribe@yahoogroups.com
Message 32
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| Subject: | Re: Air pressure switch |
--> AeroElectric-List message posted by: Richard Riley <Richard@Riley.net>
I have a pamphlet from UMA instruments saying they have such a switch, but
I don't find it on their website.
At 02:48 AM 2/25/05, you wrote:
>--> AeroElectric-List message posted by: "Gianni Zuliani" <gz@comgz.com>
>
>Good morning listers,
>On my Stag-EZRG canard I'd like to install a device which prevents
>retracting the landing gear below 90 Kt and arms an alarm in case my
>airspeed goes below 90 Kt and my landing gear is still retracted. To this
>end I'm looking for an air pressure switch which senses very low anemometric
>pressure ( I've calculated 0.2 PSI).
>Has anybody already faced this application or searched for such a switch?
>Thanks.
Message 33
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|
--> AeroElectric-List message posted by: "Scott Winn (Matronics List)" <swmat@cox.net>
I have a switching application on my panel that selects between Off,
Primary and Aux. The switch I selected to perform the switching is a
2-1 type switch. The problem I am having is that everything else on my
panel is pointed down for the off positsion. The 2-1 switch has it's
off position in the middle which isn't what I want. I would really like
to be consistent with the operation of the switches on my panel so that
when something is turned Off, it is pointed down. I need a DP3T switch
to perform this task, but B & C doesn't carry one. It is also very
important to me to have identical size and feel of switches on the
panel, so I'd prefer to get a switch that exactly matches the size,
shape and operation of the B & C switches. Since I ordered a bunch of
switches from them, I Iooked up the manufacturer and it appears that
they do not manufacture a DP3T switch. Does anyone know of a DP3T
switch that has the same size bat toggle as the B&C switches?
--Scott
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