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From: KEN@ORION.BITNET (Kenneth Ng)
Newsgroups: rec.audio,sci.electronics
Subject: Re: Audio equipment on 220V/50Hz
Message-ID: <63KEN@ORION>
Date: Wed, 18-Nov-87 06:02:08 EST
Article-I.D.: ORION.63KEN
Posted: Wed Nov 18 06:02:08 1987
Date-Received: Sat, 21-Nov-87 15:02:31 EST
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Xref: mnetor rec.audio:4312 sci.electronics:1766

>From: henry@utzoo.UUCP (Henry Spencer)
>> The 220V is no problem, I can solve that with a reasonably inexpensive
>> 500 VA step-down transformer.  However, that'll only get me to 110V/50Hz.
>> Now, this should be no problem for my integrated amp...
>
>Um, beware:  the transformer in the power supply is built for 60 Hz, not 50.
>My impression is that it will sort of work but may have problems with heat
>dissipation and inefficiency.  Anybody here who knows more about this?
>PS/2: Yesterday's hardware today.    |  Henry Spencer @ U of Toronto Zoology
>OS/2: Yesterday's software tomorrow. | {allegra,ihnp4,decvax,utai}!utzoo!henry
     
Using a 60 Hz transformer at 50 Hz will probably be ok, the opposite might
not.  Heat generated by the transformer is a function of the 'area' of
the hysterious curve multiplied by the frequency.  Therefore the lower
the frequency the lower the heat production.  But, just to be sure,
if it gets too hot to leave your hand on (and your not one of these Indian
yogis), its generally not wise to use it.