Anyone ever use any Mil-Spec RG-142 ?

Wardsweb · 25th April 2004, 04:42 AM

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?

jam · 25th April 2004, 05:47 AM

No.

Einric · 8th March 2011, 03:35 AM

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.

marce · 8th March 2011, 01:11 PM

Skin effect at audio frequencies? No

SY · 8th March 2011, 01:13 PM

Quote:

Originally Posted by Wardsweb

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.

Rodeodave · 8th March 2011, 01:23 PM

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

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.

Einric · 8th March 2011, 01:27 PM

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.

Wardsweb · 8th March 2011, 02:02 PM

Quote:

Originally Posted by SY

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.

SY · 8th March 2011, 02:21 PM

Hah, didn't notice that it was a zombie!

Speedskater · 8th March 2011, 06:13 PM

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.

8th March 2011, 02:21 PM	#9
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	Hah, didn't notice that it was a zombie! __________________ "...we stumble and get up, we are sad, confident, insecure, feel loneliness and joy and love. There is nothing more; but I want nothing more.” - Christopher Hitchens 1949-2011

8th March 2011, 06:13 PM	#10
Speedskater diyAudio Member Join Date: Sep 2002 Location: Lakewood, Ohio	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. __________________ Kevin

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25th April 2004, 05:47 AM	#2
jam diyAudio Member Join Date: May 2001 Location: Charlotte,NC,USA	No.

8th March 2011, 03:35 AM	#3
Einric diyAudio Member Join Date: Feb 2011 Location: Bozeman, MT	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.

8th March 2011, 01:11 PM	#4
marce diyAudio Member Join Date: Jun 2007 Location: Blackburn, Lancs	Skin effect at audio frequencies? No

8th March 2011, 01:27 PM	#7
Einric diyAudio Member Join Date: Feb 2011 Location: Bozeman, MT	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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