Shielded cables - success

Brit01 · 9th August 2009, 04:30 AM

Got a few projects on the go at the same time (headphone amp/Buffer and Aikido), and always had issues with the noise from the wire the precedes that volume pot to the grid.

Just tried some coaxial cable used for the tv.

The quietest cable I've tried. Dead silent

.. even when touching the wire while it's playing.

I grounded the outer shield just at one end.

Cheap and effective solution.

Geek · 9th August 2009, 05:58 AM

Glad to hear!

I love using RF cable for interconnects... RG8/M (minifoam) is awesome and just as or more flexible than the "pro" stuff.

Cheers!

Colt45 · 9th August 2009, 06:57 AM

RG-8 flexible? You mean the frozen yellow garden hose!?

or is the /M a different beast?

Geek · 9th August 2009, 10:18 AM

Quote:

Originally posted by Colt45
RG-8 flexible? You mean the frozen yellow garden hose!?

or is the /M a different beast?

Minifoam... .242" diameter. Not the .408" stuff you can use a 2' chunk as a billyclub

Frank Berry · 9th August 2009, 11:31 AM

I've used RG-174 coax for audio with great results.

danzup · 9th August 2009, 11:43 AM

I am using RG58 copper with very good results .

Brit01 · 9th August 2009, 01:07 PM

Good to know that there are more flexible cables.

Think mine is the standard RG175 which is a little rigid to say the least.

Think I'll have to look for some flexible options as you suggested. Also I couldn't solder anything to the shield of this cable.

Could you solder wire to the shield of the other cables mentioned??

chrish · 9th August 2009, 01:47 PM

I just got some of this wire from ebay . It is a little stiff, in an easy to work and route kind of way, but it is pretty small diameter and works well. Easy to solder without melting! His other teflon coated wire is good too.

boywonder · 10th August 2009, 03:33 AM

Quote:

Originally posted by Brit01
Good to know that there are more flexible cables.

Think mine is the standard RG175 which is a little rigid to say the least.

Think I'll have to look for some flexible options as you suggested. Also I couldn't solder anything to the shield of this cable.

Could you solder wire to the shield of the other cables mentioned??

The braid on the stuff I'm using for signal wiring solders no problem; it's RG-174 IIRC. You have to apply some heat to it with the iron, since it's got a lot of thermal mass. I also use a little flux when soldering the shield/braid. I twist the braid into a little pigtail and then solder to it.

Colt45 · 10th August 2009, 06:09 AM

Quote:

Originally posted by chrish
I just got some of this wire from ebay . It is a little stiff, in an easy to work and route kind of way, but it is pretty small diameter and works well. Easy to solder without melting! His other teflon coated wire is good too.

Looks like RG-316 or so. Handy stuff.

9th August 2009, 04:30 AM	#1
Brit01 diyAudio Member Join Date: Jul 2008	Shielded cables - success Got a few projects on the go at the same time (headphone amp/Buffer and Aikido), and always had issues with the noise from the wire the precedes that volume pot to the grid. Just tried some coaxial cable used for the tv. The quietest cable I've tried. Dead silent .. even when touching the wire while it's playing. I grounded the outer shield just at one end. Cheap and effective solution.

9th August 2009, 11:31 AM	#5
Frank Berry diyAudio Member Join Date: Sep 2003 Location: Midland, Michigan	I've used RG-174 coax for audio with great results. __________________ Frank

9th August 2009, 11:43 AM	#6
danzup diyAudio Member Join Date: Oct 2007 Location: Bucuresti	I am using RG58 copper with very good results . __________________ There are not better tube than 6P3S and 6N2P for my ears !

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9th August 2009, 05:58 AM	#2
Geek diyAudio Member Join Date: Sep 2004	Glad to hear! I love using RF cable for interconnects... RG8/M (minifoam) is awesome and just as or more flexible than the "pro" stuff. Cheers!

9th August 2009, 06:57 AM	#3
Colt45 diyAudio Member Join Date: Feb 2002 Location: Canada	RG-8 flexible? You mean the frozen yellow garden hose!? or is the /M a different beast?

9th August 2009, 01:07 PM	#7
Brit01 diyAudio Member Join Date: Jul 2008	Good to know that there are more flexible cables. Think mine is the standard RG175 which is a little rigid to say the least. Think I'll have to look for some flexible options as you suggested. Also I couldn't solder anything to the shield of this cable. Could you solder wire to the shield of the other cables mentioned??

9th August 2009, 01:47 PM	#8
chrish diyAudio Member Join Date: Oct 2003 Location: Sydney	I just got some of this wire from ebay . It is a little stiff, in an easy to work and route kind of way, but it is pretty small diameter and works well. Easy to solder without melting! His other teflon coated wire is good too.

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