donut
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| posted on 31/1/06 at 03:53 PM |
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Sheilded wire for speedo?
Where can i get Sheilded wire/cable for my speedo?
[Edited on 31/1/06 by donut]
Andy
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/
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muzchap
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| posted on 31/1/06 at 03:59 PM |
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Hi give this guy a phone.
You want shielded twisted pair.
He's called Harry Donner:
(01733) 571809
Not sure if they deliver though?
Cheers,
Murray
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flak monkey
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| posted on 31/1/06 at 04:00 PM |
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To connect to the sender? Audio cable is sheilded and will take the signal ok. Should be able to buy that from an Electronics shop for a few pence per
metre.
David
Sera
http://www.motosera.com
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muzchap
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| posted on 31/1/06 at 04:23 PM |
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Or if you have a nice IT bloke at work - try the shielded CAT 5 cable :-)
Flak Monkey is correct speaker wire is good - as long as it's shielded! 
Shielding is pretty simple - its just aluminium foil.. so i suppose in true locost fashion you could make your own shielded stuff?
Just get some aluminium foil (from the wife, missus, sainsburys) wrap it round the wire - overlapping. Then go over that with black tape ;-)
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Jed
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| posted on 31/1/06 at 06:00 PM |
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The problem with CAT5 is that it's not flexible enough for use reliable use in a car and after a while it will break. I use Maplin's
cheap microphone cable. It's designed to be flexed and is shielded.
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donut
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| posted on 31/1/06 at 06:16 PM |
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Is in car hifi speaker cable sheilded?
[Edited on 31/1/06 by donut]
Andy
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/
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flak monkey
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| posted on 31/1/06 at 06:17 PM |
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No not normally.
I was referring to cable used to make up Phono leads and the like.
I like the microphone cable idea too.
David
Sera
http://www.motosera.com
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donut
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| posted on 31/1/06 at 07:01 PM |
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I have found some sheilded cable at maplins so i'll see how i get on with that!
Andy
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/
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Ronin
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| posted on 31/1/06 at 09:44 PM |
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Dont forget with shielded cable you should ground one end but not the other. Otherwise you can create a feedback loop that could cause more
interferance than you would get with unshielded cable.
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donut
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| posted on 31/1/06 at 11:02 PM |
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The sender has 2 wires poping out the top. Should i ground one of those wires to the chassis then off to the speedo?
Andy
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/
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madman280
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| posted on 31/1/06 at 11:10 PM |
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quote:
Originally posted by donut
The sender has 2 wires poping out the top. Should i ground one of those wires to the chassis then off to the speedo?
Not exactly. The two wires will run in the center and a shield conductor around them. Three conductors total. The center two will connect to the
speedo or engine computer. Its the shield that needs to be grounded on only one end.
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donut
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| posted on 31/1/06 at 11:49 PM |
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Ahh right oh! Cheers.
Andy
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/
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Ian D
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| posted on 2/2/06 at 08:00 PM |
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The shielding will only work if its grounded. Being only a few feet grounding both end will make no difference. It would however be bad practice.
The cat 5 is likely to be a problem if its in sun light as the sheath is easily damaged by sunlight.
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NS Dev
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| posted on 3/2/06 at 11:14 AM |
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Microphone cable, and if you need connections, microphone plugs, are great. Everything is shielded and the plugs have a connection for the shielding,
which then shields the plug as well.
I have used these for the crank sensor connections on engines before with success.
All from Maplin
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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