Anyone ever use any Mil-Spec RG-142 ? - diyAudio
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Old 25th April 2004, 03:42 AM   #1
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Default Anyone ever use any Mil-Spec RG-142 ?

I've got some Mil-Spec Plenum RG142, 100% braided shield and solid center conductor. Both are silver over copper. Would this stuff make good interconnects?
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Old 25th April 2004, 04:47 AM   #2
jam is offline jam  United States
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No.
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Old 8th March 2011, 02:35 AM   #3
Einric is offline Einric  United States
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Electrical skin effect says that the coax would perform similar to solid silver cable. The 98% shield rating would say that it would keep your sensitive input signals well shielded.

Matter of fact, I'm gonna use it for my TDA7294 BTL input cabling.
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Old 8th March 2011, 12:11 PM   #4
marce is offline marce  United Kingdom
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Skin effect at audio frequencies? No
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Old 8th March 2011, 12:13 PM   #5
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Quote:
Originally Posted by Wardsweb View Post
I've got some Mil-Spec Plenum RG142, 100% braided shield and solid center conductor. Both are silver over copper. Would this stuff make good interconnects?
Yes. I picked some up cheap at surplus and used it for interconnect wire in both my hifi rig and in my lab. No particular issues other than it was a bit stiffer than I'd like.
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Old 8th March 2011, 12:23 PM   #6
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Coax cable is very nice. If you run them over very long distances just make sure your preamp can "drive" the somewhat higher capacitance.
I'm using RG316/U and I like it.

Quote:
Originally Posted by marce View Post
Skin effect at audio frequencies? No
Maybe a little? American Wire Gauge table and AWG Electrical Current Load Limits with skin depth frequencies


Oh, and wow, this thread is old.
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Old 8th March 2011, 12:27 PM   #7
Einric is offline Einric  United States
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To my knowledge the skin effect is an electrical property that even occurs at 50-60 hz (Mains Power Frequency). It would seem to me that skin effect does play a role, now, when you are talking the lengths needed for intracabling of an amplifier though there will be immeasurable losses. You should only gain a quieter input source from the 98% shielding.
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Old 8th March 2011, 01:02 PM   #8
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Yes. I picked some up cheap at surplus and used it for interconnect wire in both my hifi rig and in my lab. No particular issues other than it was a bit stiffer than I'd like.
Wow talk about resurrecting a dead thread. I think this is a record for one of my posts; almost 7 years.

Anyway, I too found it to be to stiff for my liking. I have had much better results from RG-316 and RG-174.
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Old 8th March 2011, 01:21 PM   #9
SY is offline SY  United States
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Hah, didn't notice that it was a zombie!
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Old 8th March 2011, 05:13 PM   #10
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In any case skin-effect at 60 Hz only matters if you are the power company delivering huge amounts of current through wires who's diameter is measured in inches.
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