[sdiy] OT: Whining Transformer

Steve Begin trypannon at hotmail.com
Fri Oct 22 16:40:06 CEST 2004


Oh don't get me started on my monitor!!  I run refreshlock because if any 
program (okay okay....) if any game I run switches to 60Hz this thing starts 
singing it's sweet one note tune.
It's starting to make intermittent sounds now and I've decided that as much 
as I love the look of crt monitors, my next purchase will probably be an 
LCD.

-Steve

----- Original Message ----- 
From: "Roy J. Tellason" <rtellason at blazenet.net>
To: "Steve Begin" <trypannon at hotmail.com>
Sent: Thursday, October 21, 2004 6:35 PM
Subject: Re: [sdiy] OT: Whining Transformer


> On Thursday 21 October 2004 10:52 am, Steve Begin wrote:
>> Allright, since everybody is telling me to look towards a new psu, I 
>> guess
>> I'll do just that.
>> I appreciate all the advice.
>>
>> thanks guys,
>> Steve
>
> Heh.  You're lucky it's only the PSU that's doing that -- I have a 
> *monitor*
> that's starting to act that way,  and it's one of the better ones here. 
> :-0
>
>> ----- Original Message -----
>> From: "Steve Ridley" <spr at spridley.freeserve.co.uk>
>> To: "Steve Begin" <trypannon at hotmail.com>
>> Sent: Thursday, October 21, 2004 8:59 AM
>> Subject: Re: [sdiy] OT: Whining Transformer
>>
>> > Steve
>> >
>> >> Is it most likely coming from the transformer?  If so, will replacing
>> >> the transformer help?  If so, do these numbers mean anything to
>> >> anyone? (they were on the transformer but if it's a part number I
>> >> can't seem to find the part anywhere).
>> >
>> > Loose windings in transformers have been known
>> > to vibrate.  Long term, this is a bad thing as it can
>> > lead to shorted turns, inefficiency, heat, smoke etc.
>> >
>> > Your chances of locating a suitable transformer are
>> > slim - they are usually custom designed for the job.
>> > By the time you've found one, bought it and paid
>> > postage, fitted it etc, a replacement PSU would
>> > be as cheap - and probably more reliable.  I assume
>> > it's a fairly standard PC PSU?
>> >
>> > I have managed to damp the vibrations in loose
>> > windings with some sort of liquid rubber solution
>> > on occasions.  I only applied a thin line of the
>> > solution - large amounts could make the transformer
>> > overheat.
>> >
>> > If you do any work on your supply, beware that they
>> > can store high voltages in the main reservoir caps
>> > for a considerable time.  I've had a nasty surprise
>> > from a PSU which I'd switched off the night before!
>> >
>> >
>> > another Steve
>> >
>> > --
>> >
>> > Whatever you Wanadoo:
>> > http://www.wanadoo.co.uk/time/
>> >
>> > This email has been checked for most known viruses - find out more at:
>> > http://www.wanadoo.co.uk/help/id/7098.htm
>
> 



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