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Torroid Transformer Hum

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peterb View Drop Down
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Joined: 02 Feb 2017
Location: Cornwall
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Post Options Post Options   Thanks (0) Thanks(0)   Quote peterb Quote  Post ReplyReply Direct Link To This Post Posted: 28 Mar 2017 at 11:41pm
Thanks all.
I will carry on searching. 
(I use buy simple 12V trafos from from Trans-Tronic !!)

Peter
Peter
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Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2
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peterb View Drop Down
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Joined: 02 Feb 2017
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Post Options Post Options   Thanks (0) Thanks(0)   Quote peterb Quote  Post ReplyReply Direct Link To This Post Posted: 23 May 2017 at 9:23pm
Just to wrap this thread up, the hum has now been eliminated. 
The transformer from RS went back and they refunded the cost.
I then ordered an Audio quality 300VA transformer from a custom torroid shop in the SE (if you want their name please PM me).
I spec'd it with the man who did the winding, a lower flux level, a low mechanical noise high grade core material (30M1H), an Electrostatic screen and lastly a  Goss band. All the bells and whistles!
The result, perfect silence.....at last.

Peter
Peter
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Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2
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