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Phoenix3(at)cox.net
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 Posted: Thu Jan 12, 2006 7:08 pm Post subject: Electrical Connections |
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Hi,
I am ready to connect the five wires of my Ray Allen trim servo to the
five wire cable which is routed to the control/trim indicator on the 701
panel. Aircraft Spruce says that the conductor material is 26 gauge
silver plated wire. I was planning to solder with lead free solder and
then insulate with electrical tape. Is this sufficient? If not, what
is a better way to go? Thanks.
Chuck Kyle
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p.mulwitz(at)worldnet.att
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| Posted: Thu Jan 12, 2006 7:54 pm Post subject: Electrical Connections |
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I'm not sure about the solder choice, but I would strongly recommend
"Heat Shrink" tubing rather than electrical tape.
You can get a nice assortment of heat shrink tubing from Harbor
Freight for almost nothing. Select a piece of tubing a bit larger in
diameter than your solder joint and a couple of inches long and place
it on the wire before soldering. Pre-tin the wires and form them in
a double U or J shape so the mechanical strength of the joint is a
function of the wire strength and the solder holding it all
together. Before the final solder heating it should look like two
fish hooks pulling on each other. Crimp the hooks with pliers to make
a firm connection and then heat the whole joint while adding
additional solder. I use a 25 watt soldering iron - really cheap
ones are only a few dollars. After it is cooled slide the heat
shrink tubing over the joint and heat it with a heat gun (I use one
designed for stripping paint, but anything that makes a lot of very
hot air will work fine). The tubing will shrink to form a very solid
joint. You will need to rotate the wire/tubing combination a little
to shrink the whole tube.
You may also want to enclose the 5 wires in a larger piece of heat
shrink as well. This will be easier if you cut the wires on one
cable to different lengths so all the joints don't wind up on top of
each other.
Good luck,
Paul
XL wings (Recovering electrical circuit designer)
| Quote: | I am ready to connect the five wires of my Ray Allen trim servo to the
five wire cable which is routed to the control/trim indicator on the 701
panel. Aircraft Spruce says that the conductor material is 26 gauge
silver plated wire. I was planning to solder with lead free solder and
then insulate with electrical tape. Is this sufficient? If not, what
is a better way to go? Thanks.
Chuck Kyle
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Ron Lendon
Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI
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| Posted: Thu Jan 12, 2006 9:42 pm Post subject: Re: Electrical Connections |
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Another idea for the heat gun. Fabricate a deflector, imagine a U shape of about 3" dia and 3" wide of sheetmetal attached to the nozzle of the heat gun. This will dam the air from the gun so you don't have to rotate the wire while heat shrinking. See attached picture.
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_________________
Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
https://sites.google.com/site/corvairenginedata/ |
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bryanmmartin
Joined: 10 Jan 2006
Posts: 1018
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| Posted: Fri Jan 13, 2006 2:44 am Post subject: Electrical Connections |
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I used crimp on butt splice connectors. I found the size I needed at Radio
Shack. I would not recommend using tape to cover the splice. Use heat shrink
instead. It would also be a good idea to stagger the splices so they dont
all stack up in the same spot. Then you can cover the entire splice area
with another piece of heat shrink. Leave a loop of wire at the splice site
so that in the unlikely event that you ever have to replace the servo,
you'll have enough wire available for the new splices after you cut off the
old ones.
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.
on 1/12/06 10:04 PM, Charles Kyle at Phoenix3(at)cox.net wrote:
| Quote: |
Hi,
I am ready to connect the five wires of my Ray Allen trim servo to the
five wire cable which is routed to the control/trim indicator on the 701
panel. Aircraft Spruce says that the conductor material is 26 gauge
silver plated wire. I was planning to solder with lead free solder and
then insulate with electrical tape. Is this sufficient? If not, what
is a better way to go? Thanks.
Chuck Kyle
|
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_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive. |
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shilocom(at)mcmsys.com
Guest
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| Posted: Fri Jan 13, 2006 4:31 am Post subject: Electrical Connections |
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My heat gun came with this type of deflector, but it was much smaller. More
like a 1 to 1 1/2" diameter and width so you can get to wires in a tighter
place. I still like crimp sleeves and knife connectors. Bob U.
---
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Bill(at)flyinmiata.com
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| Posted: Fri Jan 13, 2006 8:42 am Post subject: Electrical Connections |
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You can combine the best of both ideas with heat shrinkable butt
connectors. Del City has them, I'm sure other places do, too. They also
have some dielectric goo in them to seal the connection.
TurboDog's Dad
Bill Cardell
www.flyinmiata.com
1-800-FLY-MX5S
970-242-3800
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Crvsecretary(at)aol.com
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| Posted: Fri Jan 13, 2006 4:20 pm Post subject: Electrical Connections |
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Del City??
Got a web address ?
Thanks very much.
Tracy Smith
Naugatuck, CT
601xl N458XL (reserved)
do not archive
In a message dated 1/13/2006 6:17:22 PM Eastern Standard Time,
Bill(at)flyinmiata.com writes:
You can combine the best of both ideas with heat shrinkable butt
connectors. Del City has them, I'm sure other places do, too. They also
have some dielectric goo in them to seal the connection.
TurboDog's Dad
Bill Cardell
www.flyinmiata.com
1-800-FLY-MX5S
970-242-3800
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Bill(at)flyinmiata.com
Guest
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| Posted: Fri Jan 13, 2006 4:40 pm Post subject: Electrical Connections |
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http://www.delcity.net/ specifically
http://www.delcity.net/delcity/servlet/catalog?parentid=195161&page=1
TurboDog's Dad
Bill Cardell
www.flyinmiata.com
1-800-FLY-MX5S
970-242-3800
Del City??
Got a web address ?
Thanks very much.
Tracy Smith
Naugatuck, CT
You can combine the best of both ideas with heat shrinkable butt
connectors. Del City has them, I'm sure other places do, too. They also
have some dielectric goo in them to seal the connection.
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