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CageyH View Drop Down
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Points: 1603 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 24 Mar 2023 at 5:36pm
Further steps taken.

I tried an iFi iPurifier. It did nothing, so got sent back.
I have some more ferrites on my phono leads between TT and phono stage. The occasional buzz has reduced in intensity, but it is still there.

Only one cable left in the analogue chain to treat now. The earth cable between TT and phono stage.
I guess it is just like an aerial, just sitting there to pick up RFI. It is quite thin, so I may have to wrap it around a ferrite.
Kevin
European loan coordinator, based near Toulouse, France.
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lfc jon View Drop Down
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Points: 3789 		Post Options Post Options   Thanks (0) Thanks(0)   Quote lfc jon Quote  Post ReplyReply Direct Link To This Post Posted: 24 Mar 2023 at 7:32pm
I must be so lucky, I remember having noise problems with my system but a simple purchase of a Tacima mains conditioner sorted it all out. That's going back quit a few years ago now.
Reflex M, Solo (both with PSU-1) CuSat50, Lautus, Spatia & Spatia links cables. Ortofon Bronze.
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CageyH View Drop Down
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Points: 1603 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2023 at 10:23am
In my case, the Tacima mains block would not have helped. I was chasing a mains related problem, as my “mains regenerator” stopped the noise, but I think it was/is EMI/RFI based.

I fitted a ferrite bead to my TT earth wire last night, (it was a spare one from my mains cable beads, so is massive)  and there is a very slight trace of a buzz now.
I think I need an RFI/EMI resistant earth lead, and I can finally point this subject to bed.

It has been an interesting journey so far, which is almost finished, I hope. Now I just need to work out how to make this lead.
Kevin
European loan coordinator, based near Toulouse, France.
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Chris Firth View Drop Down
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Points: 1433 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Chris Firth Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2023 at 10:40am
Originally posted by CageyH CageyH wrote:

I think I need an RFI/EMI resistant earth lead, and I can finally point this subject to bed
So a shielded ground cable, eh?

Where are you going to ground the shield to..........?
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CageyH View Drop Down
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Points: 1603 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2023 at 10:42am
Exactly…
But how do I stop it from being an aerial?
I think there is a mobile phone mast about 1km away. This could be the source.


Edited by CageyH - 25 Mar 2023 at 10:49am
Kevin
European loan coordinator, based near Toulouse, France.
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Chris Firth View Drop Down
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Points: 1433 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Chris Firth Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2023 at 10:48am
Radio Hams might run something outside and into the ground.
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CageyH View Drop Down
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Points: 1603 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CageyH Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2023 at 10:51am
So if I grounded the shield to the mains earth, with a fly lead, would it work?

I am going to try a couple of ferrites (of the correct size) first, and then look at other options.
I may try removing the lead altogether, but so far, ferrites seem to be the answer.
Kevin
European loan coordinator, based near Toulouse, France.
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