Today's Message Index:
----------------------
1. 12:39 AM - Garmin BNC connector (Neil Henderson)
2. 01:34 AM - Re: Garmin BNC connector (Ron Koyich)
3. 02:19 AM - Re: Jig for wiring a 25 pin D-Sub connector (jerb)
4. 05:56 AM - Re: AutoCAD Rotary switch diagram needed (Charlie Kuss)
5. 07:08 AM - Re: Architecture for 2 batteries (Glen Matejcek)
6. 07:09 AM - Re: Wig Wag help (Ken)
7. 07:33 AM - Re: FW: Re: Architecture for 2 batteries and 1 alternator (Brian Lloyd)
8. 07:40 AM - Re: Radio problem (Brian Lloyd)
9. 07:46 AM - Re: Wig Wag help on juliet (Jaye and Scott Jackson)
10. 08:11 AM - Re: Ammeter readings (Robert L. Nuckolls, III)
11. 08:22 AM - Re: AutoCAD Rotary switch diagram needed (Richard Tasker)
12. 08:55 AM - Re: AutoCAD Rotary switch diagram needed (Matt Prather)
13. 09:24 AM - pressure switch for hobbs (rd2@evenlink.com)
14. 09:27 AM - Re: Load Dump report status. (Wallace Enga)
15. 09:39 AM - Re: Wig Wag help on juliet (jerb)
16. 10:24 AM - Re: pressure switch for hobbs (James Redmon)
17. 11:08 AM - Re: AutoCAD Rotary switch diagram needed (Mickey Coggins)
18. 12:33 PM - Data and source for Mostek 3780 (Paul McAllister)
19. 01:07 PM - Re: pressure switch for hobbs (Trampas)
20. 02:03 PM - Re: pressure switch for hobbs (Mark Steitle)
21. 02:41 PM - Re: AutoCAD Rotary switch diagram needed (John Schroeder)
22. 04:14 PM - Re: Load Dump report status. (Paul Messinger)
23. 04:27 PM - Re: pressure switch for hobbs (rd2@evenlink.com)
24. 04:38 PM - Re: AutoCAD Rotary switch diagram needed (Robert L. Nuckolls, III)
25. 04:49 PM - Hello everyone. I'm having a terrible time getting the radio to work properly (Rex & Jan Shaw)
26. 06:46 PM - Re: AutoCAD Rotary switch diagram needed (plaurence@the-beach.net)
27. 08:18 PM - Re: Re: AutoCAD Rotary switch diagram needed (Richard E. Tasker)
28. 08:37 PM - Re: Wig Wag help on juliet (Bobby Hester)
Message 1
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| Subject: | Garmin BNC connector |
--> AeroElectric-List message posted by: "Neil Henderson" <neil.mo51@btopenworld.com>
Listers
I need to replace the BNC connector on my Garmin 196 GPS aerial lead. Doe's anyone
know what type of connector I need, 50 or 75 ohm?
Neil Henderson RV9 Aylesbury UK
Message 2
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| Subject: | Garmin BNC connector |
--> AeroElectric-List message posted by: "Ron Koyich" <Ron@Koyich.com>
Hi, Neil - it will be 50 ohm cable but more important when you're
finding one is to get the correct one for the diameter of cable you'll be
using with it.
Is this for the aircraft mounted antenna?
I use RG-58 cable and crimped on connector for my wheel mounted 196.
Ron
Message 3
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| Subject: | Re: Jig for wiring a 25 pin D-Sub connector |
--> AeroElectric-List message posted by: jerb <ulflyer@verizon.net>
Neil,
By the sounds of things, you may want to use the type of DB-25 connector
that uses crimp pins that snap in and lock into the connector housing
rather than the type with fixed solder terminals. It takes an terminal/pin
extractor tool to remove them. This would allow you to change or punch
them out later if necessary to remove the stick grip.
There are also solder versions of the individual connector contacts but you
have to be careful not to use to much solder thus making the contacts too
big to push into the housing.
Radio Shack sells a cheap crimper that will work adequately for doing a
small amount of DB 25 connector contacts. As for the connector and
contacts you make want to get a good quality connector and crimp contacts
from some place like Mouser Electronics or Altex Electronics. Order crimps
for the wire gauge your using. (Note, get the contacts with "U" shape
crimp not the round crimps as they take a very expensive tool to properly
crimp them.)
While convenient and readily available one thing I've found is much of the
Radio Shack components having solder terminals like push button switches
are made with a low melt point plastic rather than high temp melt resistant
material or Bakelite. Even though your careful trying to be quick and not
heat the terminal too hot, the housing will melt and terminals will
actually move or loosen and the switches prove to be unreliable even to the
point of not working. I've found them to be a waste of money and time
especially when you pay nearly the same price for them as better quality
components from electronic supply houses like above. Having worked in the
electronic industry I've soldered enough small and miniature switches to
know what I'm writing about.
jerb
At 10:41 AM 8/9/04 -0400, you wrote:
>--> AeroElectric-List message posted by: Neil Clayton <harvey4@earthlink.net>
>
>Bob....I spent two frustrating hours trying to solder a D-sub connector
>onto the 19+ wires of an Infinity Stick. The idea is to be able to remove
>the stick during annuals, etc. I eventually threw up the idea and decided
>there MUST be some kind of professional jig for wiring these things.
>Can you direct me to such a device?
>
>Many thanks
>
>Neil
>
>
Message 4
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| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: Charlie Kuss <chaztuna@adelphia.net>
Bob
Thanks. I spent an hour designing a switch symbol last night. I've saved
your symbols to my wire book.
Charlie
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
><bob.nuckolls@cox.net>
>
>At 07:14 PM 8/10/2004 -0400, you wrote:
> >--> AeroElectric-List message posted by: Charlie Kuss
> <chaztuna@adelphia.net>
> >
> >Listers,
> > Has anyone using AutoCAD made a diagram or symbol for a rotary style
> >switch? I'm using a 2 pole, 4 throw rotary switch to control the flash
> >pattern on my Nova 906 strobe power supply. I'm still a newbie at AutoCAD.
> >Drawing circular stuff from scratch is tough for me. Can anyone help?
> >Charlie Kuss
> >RV-8A cockpit wiring
>
> Sure. Check out
> http://www.aeroelectric.com/AutoCAD_Drawings/2P4T_Rotary.dwg
> There are two styles of two-pole, four-position switch schematics
> posted there. Take your pick.
>
> Bob . . .
>
>
Message 5
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| Subject: | Re: Architecture for 2 batteries |
--> AeroElectric-List message posted by: "Glen Matejcek" <aerobubba@earthlink.net>
Bob-
What about failure of the power line to the regulator or failure of the
regulator itself?
gm
Time: 08:02:37 AM PST US
From: "Robert L. Nuckolls, III" <rnuckolls@aeroelectric.com> and 1
alternator
Subject: Re: AeroElectric-List: FW: Re: Architecture for 2 batteries
and 1 alternator
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<rnuckolls@aeroelectric.com>
and 1 alternator
> My question is:
>what kind of failure could occur which would NOT trigger the LV warning,
but
>could drain the batteries?
None
Bob . . .
---
Message 6
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| Subject: | Re: Wig Wag help |
on juliet
--> AeroElectric-List message posted by: Ken <klehman@albedo.net>
Is there an automotive application (or part number) for such a two way
flasher that I could look for the next time I'm in the auto wrecker's?
thanks
Ken
Charles E. Brame wrote:
>--> AeroElectric-List message posted by: "Charles E. Brame" <charleyb@earthlink.net>
>
>I've wired up my landing lights via Bob's Wig Wag Scheme - Single Switch
>-Single Power Source. I've checked and double checked the wiring, but
>the Wig Wag won't work. I get both landing lights on steady with either
>of the switch "On" positions.
>
>At one point, I did have the 14v power input and the right landing light
>output pins switched on the flasher. Could that have welded the flasher
>shut?
>
>I'm only getting 12.8 volts to the diode (battery ops only.) Can low
>voltage prevent the wig wag flasher from working?
>
>Charlie Brame
>RV-6A N11CB
>San Antonio
>
>
Message 7
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| Subject: | Re: FW: Re: Architecture for 2 batteries and 1 alternator |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Aug 10, 2004, at 11:02 AM, Robert L. Nuckolls, III ,
and@froghouse.org, 1@froghouse.org, alternator@froghouse.org wrote:
> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
> <rnuckolls@aeroelectric.com> and 1 alternator
>
>
>> My question is:
>> what kind of failure could occur which would NOT trigger the LV
>> warning, but
>> could drain the batteries?
>
> None
There is always failure of the LV warning itself.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
Message 8
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| Subject: | Re: Radio problem |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Aug 10, 2004, at 12:37 PM, Chad Stenson wrote:
> --> AeroElectric-List message posted by: Chad Stenson
> <cjstenson@ameritech.net>
>
> Hello everyone. I'm having a terrible time getting the radio to work
> properly in my Avid Flyer. The thing that is so frustrating about
> this is that I'm using the same setup that almost everyone with my
> kind of plane and engine combination uses. No one else is having this
> problem. Anyway, I can
> offer more specifics, but that's what I need help with. Anyone with
> insight into a possible solution please reply, I'd sure like some
> advice.
A couple of years back I ran into exactly the same problem. A signal
saturated the receiver and opened the squelch. I could not reliably
communicate. The problem turned out to be the ELT. It was receiving
all manner of broadcast energy and then reradiating it as noise in the
aircraft band. Disconnecting the antenna from the ELT solved the
problem. The ELT was then sent back for repair. No more problems.
BTW, I had several top-notch radio shops work on the problem as I was
stumped (and I have a lot of experience with mobile radio
troubleshooting). They couldn't find it either. It was an old A&P who
remembered this problem with ELTs and suggested I look there.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
Message 9
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| Subject: | Re: Wig Wag help on juliet |
--> AeroElectric-List message posted by: "Jaye and Scott Jackson" <jayeandscott@telus.net>
As a very simple unit is about $15 from B&C Specialties, there might not be
any savings to buying a used one.
Scott in vancouver
----- Original Message -----
From: "Ken" <klehman@albedo.net>
Subject: Re: AeroElectric-List: Wig Wag help on juliet
> --> AeroElectric-List message posted by: Ken <klehman@albedo.net>
>
> Is there an automotive application (or part number) for such a two way
> flasher that I could look for the next time I'm in the auto wrecker's?
> thanks
> Ken
>
> Charles E. Brame wrote:
>
> >--> AeroElectric-List message posted by: "Charles E. Brame"
<charleyb@earthlink.net>
> >
> >I've wired up my landing lights via Bob's Wig Wag Scheme - Single Switch
> >-Single Power Source. I've checked and double checked the wiring, but
> >the Wig Wag won't work. I get both landing lights on steady with either
> >of the switch "On" positions.
> >
> >At one point, I did have the 14v power input and the right landing light
> >output pins switched on the flasher. Could that have welded the flasher
> >shut?
> >
> >I'm only getting 12.8 volts to the diode (battery ops only.) Can low
> >voltage prevent the wig wag flasher from working?
> >
> >Charlie Brame
> >RV-6A N11CB
> >San Antonio
> >
> >
>
>
Message 10
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| Subject: | Re: Ammeter readings |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 02:51 PM 8/10/2004 -0700, you wrote:
>--> AeroElectric-List message posted by: "Jaye and Scott Jackson"
><jayeandscott@telus.net>
>
>NOthing like replying to my own post!
>I'm beginning to think the ammeter IS trying to work as it should, but the
>regulator is handling the electrical load by rapidly pulsing the alternator
>field rather than a steady output.
You're very close . . .
> > --> AeroElectric-List message posted by: "Jaye and Scott Jackson"
><jayeandscott@telus.net>
> >
> > Bob:
> > I wired my RV-6 as per figure Z-2, dated 04/00, but with the shunt
>located and ammeter wired as per Z-4 of the same date.
> > I very much enjoyed reading your manual and feel that I learned more
>about electrical systems than any other aspect of making an airplane, and it
>has worked almost perfectly for 150 hours.
I'm pleased that you find the work useful . . .
> > The one problem you previously addressed-that of the bouncing ammeter
>needle- still exists, and can only be made to go away by jumpering the 12v+
>from the regulator right to the main fuse block, bypassing the field
>breaker.
This is a profound fact.
> I've tried jumpering the individual components and wires in the
>circuit, but can't isolate the problem. Nor does an ohmmeter indicate high
>resistance anywhere.
"High" resistance in this instance is not something you'd expect
to measure with the ordinary ohmmeter. The resistance values were
working with live in the very low range below 100 milliohms or so.
> > I can live with that, although the pulsing lights at night give me
>pause, wondering about the effect on solid-state radios.
No risks here. The effect of the pulsing phenomenon is not
harmful to system components.
We've discussed wiring induced regulator instability numerous
times on the list. Old Pipers and Cessnas are well know for
their ability to demonstrate this phenomenon. The problem arises
only when the regulator's power input lead has dual duty: (1) sense
bus voltage for purposes of regulation and (2) carry current used
to excite the alternator's field.
Depending on a lot of variables, the regulator can become unstable
when (A) the resistance between bus and regulator is too high . . . and
by "two high" we can be saying that 34 milliohms is fine and
60 milliohms causes problems. This problem can also crop up when (B)
fat wires that tie alternator b-lead, battery and main bus are too high
resistance meaning that wire gage is too small for the length of
wire run. Condition B is much less likely but the risk is not zero.
The fact that you can jumper between the bus and regulator and make
the problem go away is a strong indicator that condition A is operating.
Without seeing details of your wiring, I would suggest that you first
increase the wire gage between bus and regulator. Try 14AWG . . . much
lower resistance compared to 20AWG shown on my drawings. You don't need
to change anything else. All other hardware is fine as is. If this
doesn't fix it, you MIGHT have a bad regulator . . . again, badness
is relative. Out of a production run of 100 regulators, you might
have one or two new ones that have the problem in your particular
installation while the rest work just fine. However, virtually ALL
such regulators have a risk of instability when poor wiring choices
or ageing joints drives the power path resistance up.
The 100% cure for this phenomenon is to purchase a regulator
with separate bus sense and field power leads. The B&C LR3 series
regulators are good examples. Voltage regulators for turbine
aircraft have had this feature for decades. I designed regulators
for Cessna 30 years ago that featured independent field power and
bus sense leads.
This is not intended to discourage you from taking advantage of
the low cost automotive products like the VR166 generic Ford
regulator featured in some of my architecture diagrams. You simply
need to understand the phenomenon and take prudent steps to
keep it from happening and/or fix it when it does happen.
> > The other issue that I hope you can address is the actual indications of
>the ammeter. I understood that wiring the shunt/ammeter into the alternator
>B-lead as per Z-4 would make it read as an alternator loadmeter, and not a
>charge/discharge indicator, which it would were it wired into the battery
>lead as usual.
"As usual" might apply to Cessnas but the "usual" technique for
Pipers is to wire ammeters up as alternator load meters. Either
instrument has value for interpreting system behavior but the
battery ammeter forces some modifications to architecture which
are not compatible with the philosophies illustrated in hte
Z-figures. If one has a low-volts warning light, then additional
instruments in the form of voltmeters and ammeters of any style
are just frosting on the cake . . . and not particularly useful
to pilots. They're very useful to mechanics trying to troubleshoot
a system that won't turn off the low voltage warning light.
> > It partly works. It doesn't indicate a discharge while the starter motor
>is cranking the engine.
I'd say is "mostly works" . . . alternator ammeters won't show
a discharge while cranking the engine. For that matter, battery
ammeters generally don't either. Cranking currents are not routed
through panel ammeters of any form. Your ammeter is performing as
intended . . .
> And it does indicate a healthy charge immediately
>after starting. But then it slowly drifts back to zero,
Yup, the alternator is replacing energy used to start the engine.
This takes a few minutes at most.
> and, other than that
>infuriating pulsing to the positive side of about five amps, accompanied by
>an audible pinging in the headphones, stays at zero when not pulsing
>regardless of the load on the system.
Here's a question. What are you using for "loads". The alternator load
meter should indicate total drain on alternator and unless everything
in the airplane is OFF . . . the alternator loadmeter will never show
zero amps. Are you truly reading "zero" or are your system load so
small that they're difficult to read on your particular ammeter? What
is the full-scale range of your ammeter?
> > I've traced the wiring, from B-lead, through shunt, to 50A breaker, to
>starter solenoid, and everything appears in order.
> > I wondered if you might have any ideas.
I'm betting that everything is fine except for the bus to regulator
wiring resistance. Try up-sizing the wire. I think your ammeter is
fine too . . . turn EVERYTHING on with engine rpm above 2000 and see
what it reads.
Bob . . .
Message 11
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| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: Richard Tasker <retasker@optonline.net>
Bob: Shame on you! The file posted there is saved in AutoCAD version 15
file format - meaning that only those of us who have the very latest of
AutoCAD can use it (and I am not one). Since you provide an older
version of AutoCAD on your CD I would expect that you, of all people,
would be cognizant of this issue and save files in a more universal version.
Normally, your words and actions are right on, but in this case I have
to take exception. This is one of my pet peeves - people assuming that
everyone else has the very latest software versions. And software
companies changing file formats so they are unreadable by older versions
of their software!
Dick Tasker
Robert L. Nuckolls, III wrote:
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>
>At 07:14 PM 8/10/2004 -0400, you wrote:
>
>
>>--> AeroElectric-List message posted by: Charlie Kuss <chaztuna@adelphia.net>
>>
>>Listers,
>> Has anyone using AutoCAD made a diagram or symbol for a rotary style
>>switch? I'm using a 2 pole, 4 throw rotary switch to control the flash
>>pattern on my Nova 906 strobe power supply. I'm still a newbie at AutoCAD.
>>Drawing circular stuff from scratch is tough for me. Can anyone help?
>>Charlie Kuss
>>RV-8A cockpit wiring
>>
>>
>
> Sure. Check out http://www.aeroelectric.com/AutoCAD_Drawings/2P4T_Rotary.dwg
> There are two styles of two-pole, four-position switch schematics
> posted there. Take your pick.
>
> Bob . . .
>
>
>
>
Message 12
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| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: "Matt Prather" <mprather@spro.net>
Well, the file he listed for download was free wasn't it? The whole
'gifthorse in the mouth' thing applies. Peeves or no, its good to be
polite and reasonable, especially on a public forum. Praise in public,
damn in private.
Maybe you could ask nicely if he could save it in another format? A
simple mistake, possibly?
MAP
do not archive
> --> AeroElectric-List message posted by: Richard Tasker
> <retasker@optonline.net>
>
> Bob: Shame on you! The file posted there is saved in AutoCAD version 15
> file format - meaning that only those of us who have the very latest of
> AutoCAD can use it (and I am not one). Since you provide an older
> version of AutoCAD on your CD I would expect that you, of all people,
> would be cognizant of this issue and save files in a more universal
> version.
>
> Normally, your words and actions are right on, but in this case I have
> to take exception. This is one of my pet peeves - people assuming that
> everyone else has the very latest software versions. And software
> companies changing file formats so they are unreadable by older versions
> of their software!
>
> Dick Tasker
>
> Robert L. Nuckolls, III wrote:
>
>>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
>> <bob.nuckolls@cox.net>
>>
>>At 07:14 PM 8/10/2004 -0400, you wrote:
>>
>>
>>>--> AeroElectric-List message posted by: Charlie Kuss
>>> <chaztuna@adelphia.net>
>>>
>>>Listers,
>>> Has anyone using AutoCAD made a diagram or symbol for a rotary style
>>>switch? I'm using a 2 pole, 4 throw rotary switch to control the flash
>>> pattern on my Nova 906 strobe power supply. I'm still a newbie at
>>> AutoCAD. Drawing circular stuff from scratch is tough for me. Can
>>> anyone help? Charlie Kuss
>>>RV-8A cockpit wiring
>>>
>>>
>>
>> Sure. Check out
>> http://www.aeroelectric.com/AutoCAD_Drawings/2P4T_Rotary.dwg There
>> are two styles of two-pole, four-position switch schematics posted
>> there. Take your pick.
>>
>> Bob . . .
>>
>>
>>
>>
>
>
Message 13
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| Subject: | pressure switch for hobbs |
--> AeroElectric-List message posted by: rd2@evenlink.com
Can anyone direct me to a source for a replacement oil pressure switch for
the hobbs in production aircraft (tso etc.)?
Rumen
Message 14
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| Subject: | Re: Load Dump report status. |
--> AeroElectric-List message posted by: Wallace Enga <wenga@svtv.com>
Hi Paul,
Just checking to see if you have posted this report & I missed it.
Certainly do appreciate the major effort you have put into this project.
Wally Enga
At 08:58 PM 7/11/04 -0700, you wrote:
>--> AeroElectric-List message posted by: "Paul Messinger" <paulm@olypen.com>
>
>We are in the last stages of the report.
>
>What started out to be a simple test of alternator load dump has turned out
>to be a huge time sink for us. One estimated week has expanded into over
>three months.
>
>In building the test simulator it was decided to use a simplified test
>circuit that contained the essentials of a basic aircraft electrical system
>using parts likely to be used by many builders. Contactors from Wicks or
>ACFT Spruce etc. Bob's OVP per "the do it your self version", both the
>popular Panasonic Type 12v 18 ah battery as well as the Odyssey PC625 that
>were lying around and not to be used in flight.
>
>There were problems from the start that needed to be sorted out before the
>initial Alternator load dumps could be characterized.
>
>While load dump is well known its surprising how different it's defined,
>based on who is defining it. There is a factor of ten in the magnitude of
>the dump pulse in the different literature.
>
>Thanks to Bob, we have a copy of DO-160 to review and apply to our testing.
>Perhaps surprising there are short comings in this document.
>
>We also decided that to only point out designs or devices that did not meet
>our expectations was not enough. We decided that an a solution needed to be
>designed and tested so anyone wanting to follow the test results and
>suggested changes could have a really available alternative solution.
>
>There were no "grounding before next flight" problems discovered but there
>are some design changes suggested to improve the reliability of the
>electrical system.
>
>We have dozens of tests and several hundred scope pictures etc to sort thru
>to provide all the needed documentation to understand the tests and the test
>results. This report in being written in a format that is intended to reduce
>the electronics background needed to understand the test and test results.
>
>The tests and test results are presented as facts and have been repeatable
>over the entire duration of the testing process from start to some done
>today.
>
>Comments about the significance of the test results are informed opinion, as
>are the recommended solutions. We will limit solutions to one or more
>readily available ones and not leave a problem without a solution. The main
>reason for the test duration is the need to design and test a solution to a
>problem.
>
>Clearly all aircraft electrical needs are different from say an VFR non
>electric engine to an IFR electrically dependent engine. The specific design
>of these systems is beyond the scope of this effort. There is a common core
>of any system consisting of the alternator, main bus, and battery and that
>is what we limited the study to.
>
>The report will be posted on the web shortly after the end of OSH 2004. I
>plan to make the trip there as do others on the list and we want to be
>around to reply to comments on the report.
>
>Paul
>
>
Message 15
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| Subject: | Re: Wig Wag help on juliet |
--> AeroElectric-List message posted by: jerb <ulflyer@verizon.net>
It's now $22 from B&C Specialties - last item on the page. A while back
they were $17 on one of the companies that sell safety equipment ( search
wig wag flashers on google.com).
http://www.bandcspecialty.com/cgi-bin/ez-catalog/cat_display.cgi?10X358218#gcl-1
I think its the unit made by Tracon (sp) - they make electronic replacement
flashers for auto's - good units I might add if your changing the loading
when pulling a trailer, their electronic units eliminate the problem of
flashing to fast. They have on special unit that can be used as a wig-wag
unit.
Also check out the Show Me units - I have one of these on my plane and it
works good. The unit I have allows you to select flash both, alternate
flash, or both lights on. Also check the wattage of your landing lights
and what a unit can handle. They can be purchased with wire pig tails or
screw terminals, I got the one with terminal. Also there is flash rate, I
got the slowest I could get which comes out to be a second on, a second
off. I think mine cost me around $45 dollars - I use it for switching
recognition (driving) lights on my ultralight.
http://shop.store.yahoo.com/bcssales/shomranheadf.html
Do a serch on google.com for Able 2 & Show ME wig wag flashers. There is a
lot of price variation between places that sell them, I got mine from the
manufacturer - they had the best price.
jerb
At 07:45 AM 8/11/04 -0700, you wrote:
>--> AeroElectric-List message posted by: "Jaye and Scott Jackson"
><jayeandscott@telus.net>
>
>As a very simple unit is about $15 from B&C Specialties, there might not be
>any savings to buying a used one.
>Scott in vancouver
>----- Original Message -----
>From: "Ken" <klehman@albedo.net>
>To: <aeroelectric-list@matronics.com>
>Subject: Re: AeroElectric-List: Wig Wag help on juliet
>
>
> > --> AeroElectric-List message posted by: Ken <klehman@albedo.net>
> >
> > Is there an automotive application (or part number) for such a two way
> > flasher that I could look for the next time I'm in the auto wrecker's?
> > thanks
> > Ken
> >
> > Charles E. Brame wrote:
> >
> > >--> AeroElectric-List message posted by: "Charles E. Brame"
><charleyb@earthlink.net>
> > >
> > >I've wired up my landing lights via Bob's Wig Wag Scheme - Single Switch
> > >-Single Power Source. I've checked and double checked the wiring, but
> > >the Wig Wag won't work. I get both landing lights on steady with either
> > >of the switch "On" positions.
> > >
> > >At one point, I did have the 14v power input and the right landing light
> > >output pins switched on the flasher. Could that have welded the flasher
> > >shut?
> > >
> > >I'm only getting 12.8 volts to the diode (battery ops only.) Can low
> > >voltage prevent the wig wag flasher from working?
> > >
> > >Charlie Brame
> > >RV-6A N11CB
> > >San Antonio
> > >
> > >
> >
> >
>
>
Message 16
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| Subject: | Re: pressure switch for hobbs |
--> AeroElectric-List message posted by: "James Redmon" <james@berkut13.com>
I have a Hobbs pressure switch (the one made by Hobbs) available for sale -
new, never used. $15, paypal, non-priority shipping in US included.
James Redmon
Berkut #013 N97TX
http://www.berkut13.com
----- Original Message -----
From: <rd2@evenlink.com>
Subject: AeroElectric-List: pressure switch for hobbs
> --> AeroElectric-List message posted by: rd2@evenlink.com
>
> Can anyone direct me to a source for a replacement oil pressure switch for
> the hobbs in production aircraft (tso etc.)?
>
> Rumen
Message 17
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|
| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
Hi,
Autodesk is a major employer in my region, so please upgrade
to the latest version, and keep your system updated as much
as possible. In fact, some of my friends who work there are
building an RV7, so if you spend more money with Autodesk,
then they can probably afford to continue their project.
At least they won't get laid off.
:-)
Thanks,
Mickey
>Bob: Shame on you! The file posted there is saved in AutoCAD version 15
>file format - meaning that only those of us who have the very latest of
>AutoCAD can use it (and I am not one). Since you provide an older
>version of AutoCAD on your CD I would expect that you, of all people,
>would be cognizant of this issue and save files in a more universal version.
do not archive
--
Mickey Coggins
http://www.rv8.ch/
#82007 QB Wings/Fuselage
Message 18
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|
| Subject: | Data and source for Mostek 3780 |
--> AeroElectric-List message posted by: "Paul McAllister" <paul.mcallister@qia.net>
Hi all,
Can anyone direct me to where I can get technical information on a Mostek MK3780
uP and where I can procure one. I suspect that this device is now obsolete.
Paul
Message 19
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|
| Subject: | pressure switch for hobbs |
--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
Try looking for a VDO pressure sensor, many of the VDO also have switch for
hobbs.
Regards,
Trampas
www.sterntech.com
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
rd2@evenlink.com
Subject: AeroElectric-List: pressure switch for hobbs
--> AeroElectric-List message posted by: rd2@evenlink.com
Can anyone direct me to a source for a replacement oil pressure switch for
the hobbs in production aircraft (tso etc.)?
Rumen
Message 20
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|
| Subject: | pressure switch for hobbs |
--> AeroElectric-List message posted by: Mark Steitle <msteitle@mail.utexas.edu>
I did a little web surfing at egauges.com and came up with three pressure
switch selections, 15 psi, 30 psi, and 50 psi. See
http://egauges.com/vdo_send.asp?Sender=Pro_Light_Pressure&Cart= for more
details.
Mark S.
ratings.At 04:07 PM 8/11/2004 -0400, you wrote:
>--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
>
>Try looking for a VDO pressure sensor, many of the VDO also have switch for
>hobbs.
>
>Regards,
>Trampas
>www.sterntech.com
>
>
>-----Original Message-----
>From: owner-aeroelectric-list-server@matronics.com
>[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
>rd2@evenlink.com
>To: aeroelectric-list@matronics.com
>Subject: AeroElectric-List: pressure switch for hobbs
>
>--> AeroElectric-List message posted by: rd2@evenlink.com
>
>Can anyone direct me to a source for a replacement oil pressure switch for
>the hobbs in production aircraft (tso etc.)?
>
>Rumen
>
>
Message 21
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|
| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: "John Schroeder" <jschroeder@perigee.net>
Do not Archive
Tut - Tut, Dick -
I have AutoCAD 2000LT and it pulled up like a champ. :-))
John
On Wed, 11 Aug 2004 11:22:12 -0400, Richard Tasker
<retasker@optonline.net> wrote:
> --> AeroElectric-List message posted by: Richard Tasker
> <retasker@optonline.net>
>
> Bob: Shame on you! The file posted there is saved in AutoCAD version 15
> file format - meaning that only those of us who have the very latest of
> AutoCAD can use it (and I am not one). Since you provide an older
> version of AutoCAD on your CD I would expect that you, of all people,
> would be cognizant of this issue and save files in a more universal
> version.
>
> Normally, your words and actions are right on, but in this case I have
> to take exception. This is one of my pet peeves - people assuming that
> everyone else has the very latest software versions. And software
> companies changing file formats so they are unreadable by older versions
> of their software!
>
> Dick Tasker
>
> Robert L. Nuckolls, III wrote:
>
>> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
>> <bob.nuckolls@cox.net>
>>
>> At 07:14 PM 8/10/2004 -0400, you wrote:
>>
>>
>>> --> AeroElectric-List message posted by: Charlie Kuss
>>> <chaztuna@adelphia.net>
>>>
>>> Listers,
>>> Has anyone using AutoCAD made a diagram or symbol for a rotary style
>>> switch? I'm using a 2 pole, 4 throw rotary switch to control the flash
>>> pattern on my Nova 906 strobe power supply. I'm still a newbie at
>>> AutoCAD.
>>> Drawing circular stuff from scratch is tough for me. Can anyone help?
>>> Charlie Kuss
>>> RV-8A cockpit wiring
>>>
>>>
>>
>> Sure. Check out
>> http://www.aeroelectric.com/AutoCAD_Drawings/2P4T_Rotary.dwg
>> There are two styles of two-pole, four-position switch schematics
>> posted there. Take your pick.
>>
>> Bob . . .
>>
>>
>>
>>
>
>
--
Message 22
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|
| Subject: | Re: Load Dump report status. |
--> AeroElectric-List message posted by: "Paul Messinger" <paulm@olypen.com>
Still recovering from work left behind to go to OSH.
Also lots to the report as it was greatly expanded in scope as problems were
discovered as testing developed. Problems need solutions, so after
determining there was a "Problem" (problem is defined as something we did
not think was as good as it could be; or simply not good at all) we needed
to develop a better design and then build it and test it under the identical
conditions so we can report 'this is not good' and here is a tested "better
solution". Some "problems" were complete suprises. Nothing thast in our
opinion that was a "must fix now", just things that need attention depending
on your personal needs.
Later this month is current estimate for report.
Sadly what started out as a simple short test developed into a many month
test/design/development/test effort. I have never been accused of short cuts
and this is a good example of one thing leading to another.
But there is the resulting data taken and hundreds of photographs etc that
is a great test data base of basic electrical systems design. We did not get
into 1 vs 2 batteries, different busses etc. Its just the basis of a simple
system that can be expanded on and for the most part be reproduced by any
one interested.
Paul
----- Original Message -----
From: "Wallace Enga" <wenga@svtv.com>
Subject: Re: AeroElectric-List: Load Dump report status.
> --> AeroElectric-List message posted by: Wallace Enga <wenga@svtv.com>
>
>
> Hi Paul,
> Just checking to see if you have posted this report & I missed it.
>
> Certainly do appreciate the major effort you have put into this project.
> Wally Enga
>
>
Message 23
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|
| Subject: | pressure switch for hobbs |
--> AeroElectric-List message posted by: rd2@evenlink.com
Thanks Mark, Trampas.
Rumen
_____________________Original message __________________________
(received from Mark Steitle; Date: 04:00 PM 8/11/2004
-0500)
--> AeroElectric-List message posted by: Mark Steitle
<msteitle@mail.utexas.edu>
I did a little web surfing at egauges.com and came up with three pressure
switch selections, 15 psi, 30 psi, and 50 psi. See
http://egauges.com/vdo_send.asp?Sender=Pro_Light_Pressure&Cart= for more
details.
Mark S.
ratings.At 04:07 PM 8/11/2004 -0400, you wrote:
>--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
>
>Try looking for a VDO pressure sensor, many of the VDO also have switch for
>hobbs.
>
>Regards,
>Trampas
>www.sterntech.com
>
>
>-----Original Message-----
>From: owner-aeroelectric-list-server@matronics.com
>[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
>rd2@evenlink.com
>To: aeroelectric-list@matronics.com
>Subject: AeroElectric-List: pressure switch for hobbs
>
>--> AeroElectric-List message posted by: rd2@evenlink.com
>
>Can anyone direct me to a source for a replacement oil pressure switch for
>the hobbs in production aircraft (tso etc.)?
>
>Rumen
>
>
Message 24
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|
| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <rnuckolls@aeroelectric.com>
At 11:22 AM 8/11/2004 -0400, you wrote:
>--> AeroElectric-List message posted by: Richard Tasker
><retasker@optonline.net>
>
>Bob: Shame on you! The file posted there is saved in AutoCAD version 15
>file format - meaning that only those of us who have the very latest of
>AutoCAD can use it (and I am not one). Since you provide an older
>version of AutoCAD on your CD I would expect that you, of all people,
>would be cognizant of this issue and save files in a more universal version.
>
>Normally, your words and actions are right on, but in this case I have
>to take exception. This is one of my pet peeves - people assuming that
>everyone else has the very latest software versions. And software
>companies changing file formats so they are unreadable by older versions
>of their software!
>
>Dick Tasker
I assumed nothing. He asked for an AutoCAD drawing.
ACAD2000 was all I had installed on this computer at the time.
He didn't say what version he was using. I have to
pass drawings through two older versions to save-down
to R12 which I have now done. The "old" drawing has been
posted at:
http://www.aeroelectric.com/AutoCAD_Drawings/2P4TR.DWG
We aim to please but it also helps if the requester is a bit
more specific as to their needs. He mentioned the next day that
he saved the block to his library of symbols so I presume that
he was able to read the original posting. Time and facilities
permitting, anyone who wants anything different will be
accommodated as soon as I'm aware of their needs.
Bob . . .
---
Message 25
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|
| Subject: | Hello everyone. I'm having a terrible time getting |
the radio to work properly
2.5 SUB_HELLO Subject starts with "Hello"
--> AeroElectric-List message posted by: "Rex & Jan Shaw" <rexjan@bigpond.com>
Hello Chad, Rex Shaw here from Australia. I am a retired electronics tech
and have just cured a similar problem in my Kitfox MKIV Classic
Speedster/582. Bear in mind these things although appearing the same or
similar don't always respond to the same solution. However you seem to have
got very close to the answer but not quite.
I too have an Icom handheld on the dash. I take the 12 volt wire that
feeds the radio to a 2,200uf capacitor to ground then through an iron core
choke then another 2,200uf to ground, this then goes into a 1.5 amp 9 volt
regulator chip. The 9 volts out has a 10uf and .ooiuf to ground and goes to
the intercomm and the noise cancelling in the headsets. Please note The 12
volt wire that goes to the radio still does in mine and it's fine but you
could leave the 12 volt wire into the start of my circuit and take the radio
feed from the second 2,200uf for extra filtering. The thing is the radio
needs 12 volts but the intercomm and noise cancelling should be happy on 9
volts.
The idea of dropping to 9 volts through the regulator chip [ about $1.oo ]
is that this cuts all the noise and spikes of 1,000 times better than
filtering. However you do need that bit of filtering [ the 2,200's & choke ]
before the regulator chip or it will fail.
As I said it may not work for you but I'm tipping it will. It is
absolutely fantastic in mine. Should anyone need to sight the circuit
drawing I drew up a rough sketch that I sent to Graham in Queensland and I
can scan and send it to you if you contact me by E'mail.
Hope this helps.
Rex.
rexjan@bigpond.com
Message 26
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| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: plaurence@the-beach.net
On 11 Aug 2004 at 9:54, Matt Prather wrote:
One can open the file with Intellecad.I think Bob supplies it in the AEC 8.0 download.
Peter
do not archive
> --> AeroElectric-List message posted by: "Matt Prather"
> <mprather@spro.net>
>
> Well, the file he listed for download was free wasn't it? The whole
> 'gifthorse in the mouth' thing applies. Peeves or no, its good to be
> polite and reasonable, especially on a public forum. Praise in
> public, damn in private.
>
> Maybe you could ask nicely if he could save it in another format? A
> simple mistake, possibly?
>
> MAP
>
> do not archive
>
>
> > --> AeroElectric-List message posted by: Richard Tasker
> > <retasker@optonline.net>
> >
> > Bob: Shame on you! The file posted there is saved in AutoCAD
> > version 15
> > file format - meaning that only those of us who have the very
> > latest of AutoCAD can use it (and I am not one). Since you provide
> > an older
> > version of AutoCAD on your CD I would expect that you, of all
> > people, would be cognizant of this issue and save files in a more
> > universal version.
> >
> > Normally, your words and actions are right on, but in this case I
> > have to take exception. This is one of my pet peeves - people
> > assuming that everyone else has the very latest software versions.
> > And software companies changing file formats so they are unreadable
> > by older versions
> > of their software!
> >
> > Dick Tasker
> >
> > Robert L. Nuckolls, III wrote:
> >
> >>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
> >> <bob.nuckolls@cox.net>
> >>
> >>At 07:14 PM 8/10/2004 -0400, you wrote:
> >>
> >>
> >>>--> AeroElectric-List message posted by: Charlie Kuss
> >>> <chaztuna@adelphia.net>
> >>>
> >>>Listers,
> >>> Has anyone using AutoCAD made a diagram or symbol for a rotary
> >>> style
> >>>switch? I'm using a 2 pole, 4 throw rotary switch to control the
> >>>flash
> >>> pattern on my Nova 906 strobe power supply. I'm still a newbie at
> >>> AutoCAD. Drawing circular stuff from scratch is tough for me. Can
> >>> anyone help? Charlie Kuss
> >>>RV-8A cockpit wiring
> >>>
> >>>
> >>
> >> Sure. Check out
> >> http://www.aeroelectric.com/AutoCAD_Drawings/2P4T_Rotary.dwg There
> >> are two styles of two-pole, four-position switch schematics posted
> >> there. Take your pick.
> >>
> >> Bob . . .
> >>
> >>
> >>
> >>
> >
> >
>
>
> advertising on the Matronics Forums.
> http://www.matronics.com/chat
> ====
>
>
>
>
Message 27
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|
| Subject: | Re: AutoCAD Rotary switch diagram needed |
--> AeroElectric-List message posted by: "Richard E. Tasker" <retasker@optonline.net>
Point taken. I am sorry. I had assumed that the file was already on
your site and that you were just pointing it out to the requester,
assuming that you would have originally saved it in a relatively
universal format when you put it there in the first place. I should
have known that you would have gone out of your way to find one and put
it there when he asked for it - I don't know how you find the time to do
all you do.
Regarding the others who answered/chastised me, I have not upgraded
beyond 98 for the simple reason that the newer versions do not do
anything more that I need. In fact, 98 doesn't do anything more than
the original LT version that I need. The only reason I have that
version is because that is what was available when I bought it.
And, yes, I can now read the file just fine.
Thank You,
Dick Tasker
Robert L. Nuckolls, III wrote:
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <rnuckolls@aeroelectric.com>
>
> I assumed nothing. He asked for an AutoCAD drawing.
> ACAD2000 was all I had installed on this computer at the time.
> He didn't say what version he was using. I have to
> pass drawings through two older versions to save-down
> to R12 which I have now done. The "old" drawing has been
> posted at:
>
> http://www.aeroelectric.com/AutoCAD_Drawings/2P4TR.DWG
>
> We aim to please but it also helps if the requester is a bit
> more specific as to their needs. He mentioned the next day that
> he saved the block to his library of symbols so I presume that
> he was able to read the original posting. Time and facilities
> permitting, anyone who wants anything different will be
> accommodated as soon as I'm aware of their needs.
>
> Bob . . .
>
>
Message 28
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|
| Subject: | Re: Wig Wag help on juliet |
--> AeroElectric-List message posted by: Bobby Hester <bhester@hopkinsville.net>
jerb wrote:
>--> AeroElectric-List message posted by: jerb <ulflyer@verizon.net>
>
>It's now $22 from B&C Specialties - last item on the page.
>
I got mine from NAPA, forgot the part number. I'll look next time I'm at
the hanger, but someone will come up with it before that I'm sure.
--
Surfing the Web from Hopkinsville, KY
Visit my web site at: http://www.geocities.com/hester-hoptown/RVSite/
RV7A Slowbuild wings-QB Fuse :-)
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