Today's Message Index:
----------------------
1. 06:14 AM - Bussmann fuse blocks terminal tool (Chris Stone)
2. 08:58 AM - Re: Bussmann fuse blocks terminal tool (Robert L. Nuckolls, III)
3. 09:01 AM - Re: Building a push to talk circuit (Robert L. Nuckolls, III)
4. 09:28 AM - Re: Dynon D10A audio alarm output signal (Robert L. Nuckolls, III)
5. 10:04 AM - Re: Building a push to talk circuit (Richard Girard)
6. 12:38 PM - Dual EFI circuit(s) questions (creightonious)
7. 01:29 PM - Re: Building a push to talk circuit (Robert L. Nuckolls, III)
8. 01:38 PM - Re: Dual EFI circuit(s) questions (Robert L. Nuckolls, III)
9. 02:02 PM - Re: Bussmann fuse blocks terminal tool (rckol)
10. 02:11 PM - Re: Building a push to talk circuit (Richard Girard)
11. 03:51 PM - Re: Building a push to talk circuit (Robert L. Nuckolls, III)
12. 07:54 PM - Preferred method (Chris Barber)
13. 08:59 PM - Re: Preferred method (Robert L. Nuckolls, III)
14. 09:13 PM - One sensor to two data displays (Brad Shafer)
15. 10:31 PM - Re: Dual EFI circuit(s) questions (creightonious)
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: | Bussmann fuse blocks terminal tool |
Ron,
There should be a PDF attached to this message. Sorry for the delay.
Chris Stone
Hi Chris
"I can send you a sketch. Very easy to make from a piece of
~.030-.040 thick steel."
If you don't mind, please send a
sketch.
Thx.
Ron Parigoris
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: | Re: Bussmann fuse blocks terminal tool |
At 08:06 AM 5/17/2010, you wrote:
>Ron,
>
>There should be a PDF attached to this message. Sorry for the delay.
>
>Chris Stone
Chris, I'd like to archive your sketch on the
website. Can you give me a list of the Bussmann
fuse blocks to which this tool applies?
Bob . . .
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: | Re: Building a push to talk circuit |
At 02:44 PM 5/16/2010, you wrote:
>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?
If the adapter offered by the mfgr is
intended to work with traditional general
aviation headsets, then you only need a
single, normally open, push button.
Can you point me to a downloadable users
manual or installation manual for this
radio?
Bob . . .
////
(o o)
===========o00o=(_)=o00o========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
================================
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: | Dynon D10A audio alarm output signal |
Bob,
Mike (at) Dynon Tech support confirms--zero voltage when alarm is not
sounding.
Okay, it would be interesting to see their output schematic
but . . .
What about that diode you mentioned? Probably wouldn't hurt, right?
. . . you are correct. We can design for the worst case
and assume the output is capacitor coupled. I should have
done that first step out of the gate. See changes
to the schematic at:
http://aeroelectric.com/Pictures/Schematics/Dynon_Alarm_Tone_Detector_A.pdf
And why do they still call it Radio Shack? Shouldn't rename
themselves Cell Phone Shack??
Hmmm . . . Radio Shack has indeed experienced
a constellation of changes in marketing philosophy
over the years. The fact that they still exist
amongst the big-box outlets is a demonstration of
their recipes for success. But when you've got many
store fronts and advertisements spread over so much
area, its a sure bet that their logo and brand name
have significant good-will value.
I suspect the ol' "If it ain't broke, don't fix it"
rule is in effect here.
Bob . . .
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: Building a push to talk circuit |
Bob, Page 45 has a drawing of the push to talk switch installed, but no
circuit info.
Rick
On Mon, May 17, 2010 at 11:03 AM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> nuckolls.bob@aeroelectric.com>
>
>
> At 02:44 PM 5/16/2010, you wrote:
>
>> 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?
>>
>
> If the adapter offered by the mfgr is
> intended to work with traditional general
> aviation headsets, then you only need a
> single, normally open, push button.
>
> Can you point me to a downloadable users
> manual or installation manual for this
> radio?
>
>
> Bob . . .
>
> ////
> (o o)
> ===========o00o=(_)=o00o========
> < Go ahead, make my day . . . >
> < show me where I'm wrong. >
> ================================
>
>
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: | Dual EFI circuit(s) questions |
I have a Rotax with 2 completely independent, stand-alone EFI systems. There is
no commonality except fuel tank (at the selector) and electrical source (Batteries
and alternator)
Figure Z-19 is a great help, and I intend to base the system on it but In my system
there is no alternate or stand-by EFI system. Each is primary and co-equal,
and is to be used on alternate flights. Only one is used at any given time.
Therefore, each must be able to be powered by a main bus and by the endurance bus
(in the event of alternator failure or the failure of 1 battery or the failure
of an EFI system).
One scheme for powering these is from an EFI bus powered by the main or engine
bus and by the endurance bus with each feed isolated by a schottky diode to prevent
feeding a dead bus.
I really am at a conceptual dead end here and all assistance is appreciated.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=297994#297994
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: | Re: Building a push to talk circuit |
At 12:01 PM 5/17/2010, you wrote:
>Bob, Page 45 has a drawing of the push to talk switch installed, but
>no circuit info.
>
>Rick
That helps!
It wasn't clear as to the number and styles
of connectors. I see that you're wanting to
ADD ptt into an existing, traditional A/C
microphone path.
You'll need a 3-wire, .206/.210 plug and appropriate
mating jack . . .
http://www.aeroelectric.com/Pictures/Connectors/Audio/206-210_3-Ckt_Microphone.jpg
a handily mounted pushbutton . . .
http://aeroelectric.com/Pictures/Schematics/spst150ma2.jpg
and wire like this . . .
http://aeroelectric.com/Pictures/Schematics/Push-to-Talk_Adapter.pdf
Bob . . .
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: Dual EFI circuit(s) questions |
At 02:32 PM 5/17/2010, you wrote:
>
>I have a Rotax with 2 completely independent, stand-alone EFI
>systems. There is no commonality except fuel tank (at the selector)
>and electrical source (Batteries and alternator)
>Figure Z-19 is a great help, and I intend to base the system on it
>but In my system there is no alternate or stand-by EFI system. Each
>is primary and co-equal, and is to be used on alternate
>flights. Only one is used at any given time.
>Therefore, each must be able to be powered by a main bus and by the
>endurance bus (in the event of alternator failure or the failure of
>1 battery or the failure of an EFI system).
>One scheme for powering these is from an EFI bus powered by the main
>or engine bus and by the endurance bus with each feed isolated by a
>schottky diode to prevent feeding a dead bus.
>I really am at a conceptual dead end here and all assistance is appreciated.
Use Z-16. Put each EFI on its own switch. #1
from a battery bus (not shown but easily added)
and #2 from the main bus. If the engine
is in trouble if BOTH systems are ON, then
arrange some form of mechanical lockout for
TWO SEPARATE switches to prevent both being
ON at the same time.
Exercise due diligence in maintaining your
battery such that its capacity is KNOWN
before flight. You'll save weight, money,
system complexity, and gain better system
reliability.
Bob . . .
Message 9
| 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: Bussmann fuse blocks terminal tool |
>Very easy to make from a piece of ~.030-.040 thick steel.
Ron,
This means the dimension of 0.40 on the drawing should be 0.04?
--------
rck
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=298003#298003
Message 10
| 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: Building a push to talk circuit |
It's not often when an electronics project can be built from my stategic
supplies (junk) box, but I'm pretty sure this one can. I have the plug and
socket from the previous radio installation and the switch is already
mounted in the stick. I may have to sneak out to the hangar and build this
tonight.
Thanks Bob,
Rick
On Mon, May 17, 2010 at 3:30 PM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> nuckolls.bob@aeroelectric.com>
>
> At 12:01 PM 5/17/2010, you wrote:
>
>> Bob, Page 45 has a drawing of the push to talk switch installed, but no
>> circuit info.
>>
>> Rick
>>
>
> That helps!
>
> It wasn't clear as to the number and styles
> of connectors. I see that you're wanting to
> ADD ptt into an existing, traditional A/C
> microphone path.
>
> You'll need a 3-wire, .206/.210 plug and appropriate
> mating jack . . .
>
>
> http://www.aeroelectric.com/Pictures/Connectors/Audio/206-210_3-Ckt_Microphone.jpg
>
> a handily mounted pushbutton . . .
>
> http://aeroelectric.com/Pictures/Schematics/spst150ma2.jpg
>
> and wire like this . . .
>
> http://aeroelectric.com/Pictures/Schematics/Push-to-Talk_Adapter.pdf
>
>
> Bob . . .
>
>
Message 11
| 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: Building a push to talk circuit |
At 04:09 PM 5/17/2010, you wrote:
>It's not often when an electronics project can be built from my
>stategic supplies (junk) box, but I'm pretty sure this one can. I
>have the plug and socket from the previous radio installation and
>the switch is already mounted in the stick. I may have to sneak out
>to the hangar and build this tonight.
Long runs of wire in the adapter are usually
a shielded pair with the shield carrying common
ground. However, try twisting a trio of 22AWG
wires together with a drill motor. Keep tension
on wires while twisting. Twist them tight enough
to get 4-6 turns per inch. Then before you open
the chuck, reverse the drill and slowly "untwist" while
relaxing tension. If the trio tends to "throw a loop"
then put the tension back on after you've straightened
it out and untwisted some more.
If you open the chuck with a lot of twisting force
in the wires, the trio will tangle up on the floor
like an apoplectic snake.
I think you'll find the twisted trio sufficiently
immune to electro-statically coupled noise.
Bob . . .
Message 12
| 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: | Preferred method |
Over the past few years I have become pretty comfortable with basic 12volt wiring
for my Velocity SE/Rotary install.
I have most of the panel complete without too much worry about it being good to
go. It consist of a Dynon Skyview, two King 125 radio's, old transponder, King
89b GPS, intercom and audio panel.
I have installed a 7 inch touch screen to run from a Netbook computer with solid
state memory. I want to keep PDF files of the plane as well as Anywhere Map
usage with this small but pretty powerful computer. Also, some onboard entertainment.
My question is, what is the best way to wire this small computer into the ships
power. I have had suggested that I buy a cigarette adapter plug and power supply
and just plug it in that way, however, I am wanting a more direct and permanent
connection. I am not sure how well the computer will play with the 12volt
system since it expects a wall plug. I do not know if there is a conventional
wisdom method for this type of install. Pardon my ignorance. What may y'all
suggest? My skills are much better than three years ago, but still pretty
limited and what may be very obvious to you, well, is not so much for me.
Thanks.
All the best,
Chris Barber
Houston, GSOT
Message 13
| 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: Preferred method |
>
>My question is, what is the best way to wire this small computer
>into the ships power.
What are the voltage and current ratings on the
ac mains power supply? Usually, these small computers
run on 19 volts DC or so at a couple amps.
It would not be difficult to build a permanently
installed 14-29v up-converter with the appropriate
connector to mate with the computer.
Bob . . .
Message 14
| 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: | One sensor to two data displays |
For redundancy and convenience, I want use both an EIS 4000 and a Dynon to
display engine data. Can I use the same sensor for both? How would I wire i
t to prevent any crosstalk between the EIS and Dynon?
Thanks,
Brad
________________________________
DISCLAIMER:
This e-mail and any attachments to it may contain confidential and propriet
ary material and is solely for the use of the intended recipient. Any revie
w, use, disclosure, distribution or copying of this transmittal is prohibit
ed except by or on behalf of the intended recipient. If you have received t
his transmittal in error, please notify the sender and destroy this e-mail
and any attachments and all copies, whether electronic or printed.
Message 15
| 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: Dual EFI circuit(s) questions |
Bob and all,
I should have added that my all-electric Rotax has an internally-regulated 50amp
alternator, belt driven off the back of the engine. The intake plenum blocks
access to the pad at the gearbox, so a standby alternator is not an option.
I don't know that Z-16 is applicable.
A design goal is to have a real 2.5 hours in the event of an alternator failure.
Engine system and e-radio load (including contactor) should total 12 amps.
I don't believe the stock charging system would handle even that load on a continuous
basis-to say nothing of adding non-e loads like lighting, gauges, other
radios, etc.
Speaking of contactors, is a 40 amp Bosch style relay an alternative? Saving .8
amps is worth someting.
I've been thinking 2 batteries for so long I'm having trouble letting go of Z-19.
But 1ea 35 amp battery is lighter than 2ea 18amp ones...
Creighton
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=298033#298033
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! --
|