Re: Power Related? Not PS2

http://www.gilanet.com/ohlandl/9595/9595_Power.html#High_Quality

Many microchannel systems use a 50/60 Hz PSU. Some have autoranging, some use a slider switch to set 115 or 240 volts. For those with a switch, as long as you don't select the other voltage while powered up, you're OK. [PSU goes bzzt if you switch while power is applied at least in 220 volt land].

Horst Franke wrote:
In news:i6npc2dvbrtsblpqhbnno98lu1o3o1ig5q@xxxxxxx
gfretwell@xxxxxxx typed:
Hi WR, be carefull! NO, not every PS ever made will do!
US at 110 volts with 60 HZ needs an adapter to work on european
220/230 volts at *50 HZ*.
Only newer power supplies said to work on multiple conditions
like 90 to 240 volts at "any" frequency might do without an adapter.
Horst
A PC supply may not support 230 volts but it doesn't care about 50 or
60 hz. The first thing a switching power supply does is convert the
input voltage to DC at the peak line voltage and chop it to 20kz or so.

Hi gf*, pls read carefully!
I treat "switching PS" as modern or newer PS not to be compared
with earlier once. Before Your days the frequency was indeed a
remarkable item to be considered.
Horst
.

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