In article ,
Martin Brown wrote:
On 27/02/2014 10:07, Dave Plowman (News) wrote:
In article ,
Martin Brown wrote:

Japanese stuff is always OK anywhere as they have half 50Hz UK and
half USA 60Hz frequency depending on which part of the country you
live in!

This was made in China.

What is interesting is the legend on the rear panel also shows 100v 60
Hz and 230v 50 Hz as choices - presumably with a different
transformer(s)?

Possibly. Maybe the same one and a different internal setting.

Not quite sure what you mean? On an analogue power supply, the mains input
is always set by tappings on the transformer.

But this one was marked 120v 60 Hz and I can't see why they'd make the
transformer for that with two windings in parallel if couldn't be
altered to 240v.

The thing to watch out for is that it might only be safe under full load
when on 240v and 60Hz (the transformer needs ~20% less metal).

If they were cutting costs to the last fraction of a penny on components,
why use a dual winding transformer? Be cheaper to have a different one for
each and every voltage? And make assembly easier?

Monitor it very closely for signs of overheating after conversion.

Bit difficult, that one.

--
*The beatings will continue until morale improves *

Dave Plowman London SW
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