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Hi;A couple of quick questions :
1. Which core do you use for the center of the RCA interconnect (I assume the solid core 82248) ?
2. What size teflon tubing should be used to space the shield (I'm going to get the Belden 9259 to reuse that shield) ?
3. Do the cables get really stiff with the twisted pairs, teflon tubing, braided shielding and heat shrink tubing ?
Thanks very much !
-Bob
Follow Ups:
RE #1 I used the solid core for the hot lead (center pin of RCA plug) originally, but later tried it the other way, as there is a very good theory about having the ground conection be as low of a resistance/inductance as possible, and the solid core wire is a larger size (smaller ga. number).RE #2 Thin wall teflon tubing, about 1/8" to 3/16" will work, and if using tubing, then wrap this overall with teflon plumbers tape.
RE #3 If you use thin wall tubing, or pieces of the foamed teflo core, and thin wall polyolefin HS, they are not so bad, the twisting helps allow them to flex and bend without kinking, and how stiff they are depends on how tight the HS is,a nd how thick it is when it has shrunk.
Jon Risch
Thanks Jon, on #2 above, what should the teflon tubing inside diameter be (approximately ... 1/4" ID ? Thanks again
This use of teflon thin wall tubing to help space the shield away from the twisted pair, is not for an overall slip over, but to lay into the creases of the twisted pairs.I do not recommend the use of an overall teflon tube to cover both twisted pairs, this would allow too much motion of the twisted pair relative to the shield, and possibly with respect to each other.
I suggest re-reading my DIY note carefully.
Jon Risch
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