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From: caserta@athena.mit.edu (Francesco Caserta)
Newsgroups: sci.electronics
Subject: 220V/120V transformers with 60Hz/50Hz converters
Message-ID: <1991Jun3.021343.24148@athena.mit.edu>
Date: 3 Jun 91 02:13:43 GMT
Sender: news@athena.mit.edu (News system)
Organization: Massachusetts Institute of Technology
Lines: 21


Sometime ago I posted in this group a message about surge suppressors and 220/120V transformers. Richard Schumacher (schumach@starman.convex.edu) sent me
this reply:

> 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). 

> Transforming 220 VAC to 120 VAC is easy; it's the frequency 
> problem that's hard. One can buy converters to convert 220 V
> 50 Hz AC to 120 V 60 Hz AC, but they may be expensive.

I'm posting it for two reasons: I couldn't get in touch with him for e-mail problems (unknown host), and because I would like to know more. 

Essentially, I would like to know who produces and/or sells (mail-orders?) these devices, because I never came across with any and I'm very interested.

Thanks a lot.

Francesco Caserta