Member
Location: Manchester
Posts: 74
I'm Laurence.
Do capacitors squeal??
I have some Quad Esl63 which I haven't used for a while because one is making a high pitched squealing noise that seems to be coming from the electronics rather than the panels.
Could it be a capacitor on it's way out??
Any thoughts would be gratefully received.
Thanks L
Fount Master & Moderator
Location: Essex
Posts: 31,967
I'm openingabottleofwine.
Ask the Quad service department in Huntingdon. I've always found them to be very helpful when I have discussed equipment problems with them on the phone.
http://quad-hifi.co.uk/our-story.php?id=19
Barry
Senior Member
Location: The Black Country
Posts: 6,089
I'm Alan.
Unlikely to be a capacitor I think, possibly a high voltage arcing within the voltage step up circuit. Could be a rectifier diode failure.
Needs looking at.
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Location: W Lothian
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I'm Grant.
caps and coils etc can whistle. usually coils. but it wont be amplified as such, just get louder dependant on the load etc. if its a cap it will be obvious.
Alan his there..he knows these well
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Location: Surrey
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I'm Rob.
I have inadvertantly blown up a cap and it squealed like a stuck pig until it erupted and spewed it's contents everywhere. Not a pleasant smell either.
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Member
Location: Manchester
Posts: 74
I'm Laurence.
Thank you everyone for replying, seems like it is possible then but also that there could be other explanations for the noise. Time for a systematic approach to find the source.....
Regards L
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