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Offline Cornelius
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« Reply #130 on: May 23, 2010, 03:37:32 pm »
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Yes Dennis that is exactly the way to make your  1 meter coil . Connect one strand to the other etc.  Keep going around to form the coil .  Cornelius

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« Reply #131 on: May 23, 2010, 03:44:40 pm »
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Super, many thanks.

All the best,
Dennis

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« Reply #132 on: May 23, 2010, 04:12:32 pm »
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Telephone cable should do the trick

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« Reply #133 on: May 23, 2010, 06:36:03 pm »
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I took a look at my Jameco cat. and I can get 100 ft. of 8 conductor 24 ga. stranded telephone cable for $10.00 US, so maybe a big coil isn't that far in the future afterall.

TTFN,
Dennis

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« Reply #134 on: May 24, 2010, 02:47:12 am »
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Well you can make a lot of coils with 100ft of cable 12ft is all you need cant you ask your local telephone company to give you 12ft of cable? What you going to do with the rest start a factory  Grin mind you, you could make another seven and sell them each for $10.00 US  Cheesy

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« Reply #135 on: May 24, 2010, 03:15:04 am »
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Xavier, remember that twisted pair phone line will NOT allow proper radiation of the transmitted field. It's not suitable for coil winding at all.

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« Reply #136 on: May 24, 2010, 04:27:17 am »
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Hi GD

I thought that it was a strange thing to use but I have heard of a number of people that used it and they say that it works fine I don't use large coils so never build one myself but it's good to know that telephone wire (cable) is not the thing to use.

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« Reply #137 on: May 24, 2010, 11:08:38 am »
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Very good point I'll do some looking around and see what I can find before going with Jameco.

Take care out there,
Dennis
GD,

According to Jameco write-up this is flat modular cable and the small pic they have shows the wires as seperate and nice and straight.
But I'm still going to look around to see what else is out thyere.

Dennis



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« Reply #138 on: May 24, 2010, 11:11:55 am »
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Ok Dennis thanks for the feed back

Xavier

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« Reply #139 on: May 24, 2010, 01:16:16 pm »
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Quote:Posted by xavier
Hi GD

I thought that it was a strange thing to use but I have heard of a number of people that used it and they say that it works fine I don't use large coils so never build one myself but it's good to know that telephone wire (cable) is not the thing to use.

Regards Xavier


The twisted pair will minimize the signal of ALL audio "noise" which is above 22khz below 30hz. From 30hz to 22khz, the wire is designed to keep the signal inside the twisted pair. Where does your unit operate? In the audio range making the twisted pair an active component, not just benign wire. Thus, when you use it, you WILL get a signal but a very, very weak one. Sorry, it simply does not work anywhere near what it could no matter what the DIY "geniuses" say about it. Take it apart, untwist the pairs and use a single strand and it will perform much better.

If you like the idea of using multistranded wire, use appliance control wire which can have up to 24 solid, plastic insulated wires in one cable. They are never twisted inside and you can use that soldering of the strands end to successive end to eliminate winding. The drawback to that is the coil becomes very heavy with solder and insulation. You want the lightest coil possible. Use magnet wire. If you want to scavenge the wire, use an old TV or monitor yoke for the magnet wire. Stay away from the multistrand wire and definitely stay away from twisted pair phone wire. There are limits to trying to do things for free rather than a few cents.

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« Last Edit: May 24, 2010, 01:23:44 pm by GoldDigger1950 »
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