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DIY & Tutorials
DIY For Audio
A Real Hum-Dinger
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<blockquote data-quote="JStephens" data-source="post: 79599" data-attributes="member: 1846"><p>Thanks Ludo. I changed the mains cable when I bought it. It was the very first thing I did. It is earthed on the mains and on the little screw thingie just above Phono. I've ruled out not earthing correctly as a real possibility.</p><p></p><p>Now on to the "curing". Someone had an attempt (third one actually) to cure the hum. It no longer hummed on the cheap test speakers he had, but I could still hear a little tingle on mine. Previously if I turned the amp on & then off the hum would "disappear" for a while at least. But now the hum is back with vengeance. It doesn't sound like music. Just static.</p><p></p><p>It might be classed as a zing. But even with no input devices plugged in and only the speakers it is present. </p><p></p><p>I hope this helps...</p><p></p><p>J.S.</p></blockquote><p></p>
[QUOTE="JStephens, post: 79599, member: 1846"] Thanks Ludo. I changed the mains cable when I bought it. It was the very first thing I did. It is earthed on the mains and on the little screw thingie just above Phono. I've ruled out not earthing correctly as a real possibility. Now on to the "curing". Someone had an attempt (third one actually) to cure the hum. It no longer hummed on the cheap test speakers he had, but I could still hear a little tingle on mine. Previously if I turned the amp on & then off the hum would "disappear" for a while at least. But now the hum is back with vengeance. It doesn't sound like music. Just static. It might be classed as a zing. But even with no input devices plugged in and only the speakers it is present. I hope this helps... J.S. [/QUOTE]
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DIY & Tutorials
DIY For Audio
A Real Hum-Dinger
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