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Old 18th November 2004, 04:43 AM   #1
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Default input jack insulation?

what are you guys doing out there to isolate your RCA jacks from the chassis? all of the jacks that I have seen do not have any type of sleeve or collar for insulation. should i worry too much about isolating them or not? i have the brian gt PCB's.
thanks - Greg
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Old 18th November 2004, 07:40 AM   #2
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Default Re: input jack insulation?

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Originally posted by studiotech
what are you guys doing out there to isolate your RCA jacks from the chassis? all of the jacks that I have seen do not have any type of sleeve or collar for insulation. should i worry too much about isolating them or not? i have the brian gt PCB's.
thanks -
Isolating your RCA jacks, when you use a metal case, is not an option. It's a demand.

If you don't it's the sure way to a ground loop.

What jacks have you seen that have no insulation sleeves? Radio Shack?

Serious RCA connectors should have isolators, like this:

http://www.partsexpress.com/pe/showd...umber=091-1120

Parts should be non-magnetic too. Teflon dielectric is also to be preferred, instead of plastic. Pick a good RCA connector for your cables.


Carlos
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Old 18th November 2004, 08:29 AM   #3
Nuuk is offline Nuuk  United Kingdom
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The alternative is to cut an aperture in the case and then use some non-conductive material to make a panel on which to mount the RCA sockets. That's what I usally do myself.

You can just see what I mean in this picture.

Click the image to open in full size.
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Old 18th November 2004, 10:11 AM   #4
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Quote:
Originally posted by Nuuk
You can just see what I mean in this picture.
Hi Nuuk,

What are those orange things?
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Old 18th November 2004, 10:20 AM   #5
Nuuk is offline Nuuk  United Kingdom
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Quote:
What are those orange things?
They are red Carlos!

And top secret too! Sorry but I have given my word not to talk about them.
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Old 18th November 2004, 11:12 AM   #6
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Quote:
Originally posted by Nuuk
They are red Carlos!
I knew this laptop was fake...

Quote:
Originally posted by Nuuk
And top secret too! Sorry but I have given my word not to talk about them.
A man's word is a man's word.
Are you into some tunning?

http://www.diyaudio.com/forums/showt...829#post514829

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Old 18th November 2004, 12:21 PM   #7
Nuuk is offline Nuuk  United Kingdom
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Quote:
Are you into some tunning?
Tunning?
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Old 18th November 2004, 01:18 PM   #8
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Tunning?
Or tuning?
Those guys that tweak their cars no end...
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Old 18th November 2004, 01:52 PM   #9
Mr Evil is offline Mr Evil  United Kingdom
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Quote:
Originally posted by Nuuk
[B]The alternative is to cut an aperture in the case...
I would consider that a last resort, sa you will lose the benefit of shielding from the case at wavelengths smaller than the hole.
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Old 18th November 2004, 02:16 PM   #10
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Nylon washers work fine. You just might find one with a little collar that will fit in the drilled hole and keep the jack from wollowing around the hole. Plumbing parts... like replacement washers and seats for faucets are a decent hunting ground.
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