Today's Message Index:
----------------------
1. 06:12 AM - Re: Rotax 912 vr 965-347 (Richard Girard)
2. 08:42 AM - Re: In recognition of our teachers . . . (B Tomm)
3. 11:29 AM - Audio Iso Amp with Flightcom 403 (Europa (Alfred Buess))
4. 03:37 PM - low voltage sense lead location (kesleyelectric)
5. 07:45 PM - Re: low voltage sense lead location (Robert L. Nuckolls, III)
6. 08:08 PM - Re: Using D-Sub extract tool (Robert L. Nuckolls, III)
7. 09:22 PM - Re: Another contactor question (Bob Verwey)
8. 09:35 PM - Re: Audio Iso Amp with Flightcom 403 (Robert L. Nuckolls, III)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Rotax 912 vr 965-347 |
As far as inexpensive regulators for a PM alternator go, Harley Davidson has
used a PM alternator for years and the regulators are available in the after
market from Accel, among others. Haven't tried one except in the original
application, but they are usually under $50.
Rick
On 2/10/07, Robert L. Nuckolls, III <nuckollsr@cox.net> wrote:
>
> nuckollsr@cox.net>
>
> At 04:04 PM 2/10/2007 -0600, you wrote:
>
> bdenton@bdenton.com>
> >
> >Could it have been the Key West regulator?
> >
> >Lockwood, Leading Edge, and others offer them.
> >
> >You see them a lot on ultralights with 447/503/582's...
>
> Hmmm . . . those engines have those alternators
> that want to grow up and be a 'real' alternators one
> day.
>
> I suspect the John Deere is the more robust of the
> PM regulators. As soon as I can spin the hardware,
> I'll find out how beefy it really is.
>
> Bob . . .
>
>
--
Rick Girard
"Ya'll drop on in"
takes on a whole new meaning
when you live at the airport.
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | In recognition of our teachers . . . |
Bob,
Yes it is always comforting to know that there are smarter people than
ourselves out there who willing to help, teach, mentor etc. Thanks to you
too.
We will never know it all, but it's always nice to meet another gentle
communicator who knows more than oneself. I pay special attention to the
old timers. They all have experience in something and often time to talk.
An extremely valuable segment of society.
Bevan
RV7A finish kit
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L.
Nuckolls, III
Sent: Saturday, February 10, 2007 9:51 PM
Subject: AeroElectric-List: In recognition of our teachers . . .
--> <nuckollsr@cox.net>
I had an interesting experience last week. I've been working a noise problem
that's preventing us from delivering a lot of aircraft to their original
purchase specification.
They're going out with some accessories tagged as "inop"
until we can develop, field and install kits. However, this is NOT the way
to win friends and influence customers in favorable ways. Nor does it
impress our managers and stockholders.
I've been a customer of Captor Corporation for over 30 years.
I made my first phone call to them about 1975 while in the employ of
Electro-Mech . . . my first production engineering job. The guy who answered
the phone back then was Bob Jenks.
Bob and I have talked many times over the years but it's been about ten
years since our last conversation. When this extra-ordinarily intransigent
noise situation arose, the first resource I thought of was Captor and Bob
Jenks.
While visiting their facility I got to meet Bob face to face for the first
time. He's 71, semi-retired and working 3 days a week mostly for fun. In the
few hours I was able to spend with him, I got a data and process dump on
filter techniques that bestowed upon me a quantum jump in personal
understanding and competence.
Many folk in Bob's position hold things pretty close to the chest. Perhaps
they're not interested in teaching or perhaps they're wrapped up in that
universal wet-blanket known as the "proprietary information" mantra.
Not so in this case. As I drove away from Captor to catch an airplane I
could not help but note of a sense of exhilaration for what I had just
received. It's been a long time since I last walked out of anyone's
"classroom" feeling like that.
Giggled damned near all the way to the airport! Better yet, I have some new
and interesting things to try in the lab on Monday . . . and to pass along
to my compatriots who work there with me.
Bob . . .
----------------------------------------
( IF one aspires to be "world class", )
( what ever you do must be exercised )
( EVERY day . . . )
( R. L. Nuckolls III )
----------------------------------------
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Audio Iso Amp with Flightcom 403 |
Sorry folks for repeating my question af last week. Bob: I'd like to know
your answer before I install the audio iso amp. Question:
I have an Apollo SL30 Nav/Comm and a Flightcom 403 Intercom, that I want to
combine with your audio isolation amplifier. The headphone output of the
SL30 (pin 14) is directly connected with the Recv Audio pin (21) of the 403.
The audio iso amp unit is used to bring together several mono warning tones
and to channel them into the 403 intercom. The 403 has a music input (pins
18 and 19) that is automatically muted when the SL30 is active. As I don't
want the warning tones to be muted (and shut off when the isolate switch of
the intercom is activated), I don't want to hook up the audio iso amp to the
music input. My question: Can I connect the headphone output of the SL30 AND
the output of the audio iso amp (pin 3) BOTH to the Recv Audio pin (21) of
the 403? Or is there another, better solution?
Thanks for your advice!
Alfred Buess
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | low voltage sense lead location |
Bob,
I remember some time ago a discussion regarding the location of the low
voltage sense lead of the LR3C regulator. I cannot find it in the archives,
so I will bring it up. Should the voltage sense lead be on the main or
endurance bus? I am planning Z13/8 with an SD8 on the vacuum pad, VFR. If
the most useful place is the main bus, would a low voltage indicator like
the one Eric sells on the Perihelion site work to monitor the E-bus. I
realize that with the reliability of alternators/dynamos and a properly
maintained battery, the chances of failure to that level are quite small.
I'm at the point where I need to pursue this or dismiss it and dump it out
of the worry bucket. Also, can the LR3C lamp be converted to a LED to match
the rest of the annunciators? Thanks for your help.
Regards,
Tom Barter
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: low voltage sense lead location |
Subject: AeroElectric-List: low voltage sense lead location
Bob,
I remember some time ago a discussion regarding the location of the low
voltage sense lead of the LR3C regulator. I cannot find it in the
archives, so I will bring it up. Should the voltage sense lead be on the
main or endurance bus?
WIRE IT PER INSTRUCTIONS . . . on the main bus. This is
also the voltage regulator sense lead.
I am planning Z13/8 with an SD8 on the vacuum pad, VFR. If the most useful
place is the main bus, would a low voltage indicator like the one Eric
sells on the Perihelion site work to monitor the E-bus. I realize that
with the reliability of alternators/dynamos and a properly maintained
battery, the chances of failure to that level are quite small. I'm at the
point where I need to pursue this or dismiss it and dump it out of the
worry bucket. Also, can the LR3C lamp be converted to a LED to match the
rest of the annunciators? Thanks for your help.
One never needs a low voltage warning for the e-bus . . .
'cause when you're down to e-bus operations, there are
no alternators on line and you're GUARANTEED to have
a low voltage warning light flashing.
You need a voltmeter on the e-bus since this is a
sort of 'gas gage' for battery only ops. It will also
monitor the health of the SD-8 during times when it's
being used to replace an inop main alternator.
Yes, but you need a couple of resistors to make the
LED compatible with the incandescent lamp driver
in the LR-3. See:
http://www.aeroelectric.com/Pictures/Schematics/LV_Led.jpg
Bob . . .
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Using D-Sub extract tool |
Thanks to the prompts from several proof readers, I've added
some enhancements to the D-Sub Pins Shop Notes at:
http://aeroelectric.com/articles/D-Sub_Pin/Pin-Extraction.html
Thanks for your help folks!
Bob . . .
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Another contactor question |
John, there are no stupid questions, only stupid people <grin>
Bob Verwey
A35 Bonanza ZU-DLW
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John
Erickson
Sent: 10 Feb 2007 10:11 PM
Subject: AeroElectric-List: Another contactor question
OK, here's a stupid question (and I'm probably a stupid person anyway, so no
need to argue about stupid questions... :-)),
I'm re-wiring my RV-8 with a Z-13/20 system. Using the B&C battery
contactor, I will have to splice on approximately 1.5" of 2 guage cable
unless I install it upside down (or move it to another location, not
something I want to do...)
Question 1: What are the issues, if any of a contactor installed upside down
(I have read the stuff in the Connection about the aerobatic dude who killed
his starter allegedly from to many G's on the starter contactor... I kinda
doubt the G's I'll pull in my -8 will be comparable...)?
Question 2: If I simply reversed the diode and switched the wire from the
main contact to the other side, have I essentially "reversed" the contactor?
(not sure that made any sense. Look at the side of a B&C contactor and make
all the wires on it a mirror image...)
Thanks for any advice,
John
RV-8 N94DW
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Audio Iso Amp with Flightcom 403 |
At 08:25 PM 2/11/2007 +0100, you wrote:
><ykibuess@bluewin.ch>
>
>
>Sorry folks for repeating my question af last week. Bob: I'd like to know
>your answer before I install the audio iso amp. Question:
>
>I have an Apollo SL30 Nav/Comm and a Flightcom 403 Intercom, that I want to
>combine with your audio isolation amplifier. The headphone output of the
>SL30 (pin 14) is directly connected with the Recv Audio pin (21) of the 403.
>The audio iso amp unit is used to bring together several mono warning tones
>and to channel them into the 403 intercom. The 403 has a music input (pins
>18 and 19) that is automatically muted when the SL30 is active. As I don't
>want the warning tones to be muted (and shut off when the isolate switch of
>the intercom is activated), I don't want to hook up the audio iso amp to the
>music input. My question: Can I connect the headphone output of the SL30 AND
>the output of the audio iso amp (pin 3) BOTH to the Recv Audio pin (21) of
>the 403? Or is there another, better solution?
Run all aviation audios through the iso amp (mono version) on individual
input pins. Run iso amp output to the radio headset input of the
intercom. Run stereo outputs to the intercom inputs set aside for that
purpose.
Bob . . .
----------------------------------------
( IF one aspires to be "world class", )
( what ever you do must be exercised )
( EVERY day . . . )
( R. L. Nuckolls III )
----------------------------------------
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|