Re: the life of an AC transformer.........
- From: "Dave Plowman (News)" <dave@xxxxxxxxxxxxxxx>
- Date: Wed, 19 Oct 2005 12:51:29 +0100
In article <vMednVPXXrH2WsjeRVn-sQ@xxxxxxx>,
les <les@xxxxxxx> wrote:
> I have an old photo studio speedlight (Speedotron) that is
> starting to buzz and overheat. Actually, it's the AC mains
> XFMR, but as the unit warms...and the transformer starts
> to bubble......yikes!, amazingly the strobe unit still works.
> I'm obviously in need of a new transformer.
> I know that old transformers tend to delaminate, but what other
> maladies do they suffer?
> Can they just overheat from failing insulation, or other aging issues?
> I realize rising current draw could cause similar behavior, but I'm
> assuming age as the factor in the transformer for now. Is this a foolish
> assumption? (25 years old)
One thing to look at is if the bridge rectifier has RFI suppression
capacitors across it. Had a smoking mains transformer caused by one going
short circuit (disc ceramic)
--
*Speak softly and carry a cellular phone *
Dave Plowman dave@xxxxxxxxxxxxxxx London SW
To e-mail, change noise into sound.
.
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