Tonearm cable

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pathay
England
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Tonearm cable

Post by pathay » 23 May 2019 20:04

I have nearly finished restoring a Garrard 4hf, just need to re-wire the tonearm. Should I use a screened cable or could I use un-screened which I already have? As the arm isn’t a closed tube but open underneath would it be picking up interference using un-screened.

Thanks in advanced,
Paul.

AudioFeline
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Re: Tonearm cable

Post by AudioFeline » 24 May 2019 02:49

Tonearm wire is screened by the tonearm's body. It needs to be lightweight and low capacitance.
The phono cable needs to be screened and low capacitance.

chgc
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Re: Tonearm cable

Post by chgc » 24 May 2019 03:23

So the tonearm wire is screened by the tonearm's body even though the tonearm body is open underneath?

AudioFeline
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Re: Tonearm cable

Post by AudioFeline » 24 May 2019 05:21

Yes, if the tonearm body is connected to the ground.
Under the tonearm the wires are then connected to the screened phono cable, the short "un-screened" length coming from the bottom of the tonearm is unlikely to be a problem. If it is a problem, you can add some insulation and screening to it, ensuring that anything you add does not add resistance to the tonearm movement (which is why tonearm wire is thin and flexible).

Roberto C2H3
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Re: Tonearm cable

Post by Roberto C2H3 » 24 May 2019 16:42

Tone arm wire is one of those semi permanent articles by human life span standards. If it works, IMO you should leave it alone. Just my 2 cents :)

Roberto C2H3
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Re: Tonearm cable

Post by Roberto C2H3 » 24 May 2019 16:43

Oh, and by the way, welcome to VE Paul!

AudioFeline
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Re: Tonearm cable

Post by AudioFeline » 25 May 2019 04:06

Yes, welcome Paul.

Why do you feel that you "need" to rewire the tonearm? Is the original wiring damaged?
If the original wiring is OK, then it may be better value to upgrade the cartridge and leave the original wiring.

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