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From: wrs@mcshh.hanse.de (Wolfgang R. Schulz)
Newsgroups: sci.electronics
Subject: Re: 220V/120V transformers with 60Hz/50Hz converters
Message-ID: <9258@mcshh.hanse.de>
Date: 4 Jun 91 15:32:06 GMT
References: <1991Jun3.021343.24148@athena.mit.edu>
Lines: 26

caserta@athena.mit.edu (Francesco Caserta) writes:

>> Do you know whether your equipment can use 50 Hz AC? If the
>> equipment does not explicitly state that it can accept 50 Hz,
>> then not only will the equipment not work but it will probably
>> be damaged and in addition will be a fire hazard (components
>> will overheat). 

I doubt this very much. These days the only compent which could
get a little warmer is the transformer, but usually not to a
dangerous extent. After the transformer everything is DC and
therefor does not care about what frequency the AC had previously.
Other than in the old days, when the power frequency of 60 or 50 Hz
was even used to synchronize a TV set (what gives us even today
terrible differences in TV standards) was used to synch picture,
now everything that vibrates in one kind or'the other is done by
calculated circuitries, sometimes chrystal locked.

Some VCR's may use the 50 or 60 Hz for their digital clock. In that
case you just get the wrong time, but it does no harm.

Wolfgang
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