Doepfer

You got it - half the voltage needs double the current for the same 
power consumption: Watts = Volts X Amps.

Replace them with fuses with double the amp rating of what you have 
now, and you'll be in business.

Joe

--- In Doepfer_a100@yahoogroups.com, "Tim Stinchcombe" <timothy@t...> 
wrote:
> > Best to contact the distributer, who has probably answered this 
> > question many times. Here in the U.S. Enport told me that all of 
> the 
> > frames shipped here from Doepfer contain fuses sized for the 220V 
> P/S, 
> > even though the frames have a 110V P/S, which is why the fuses 
> always 
> > blow.
> 
> After what I've just read on the web, I'll definitely second that! 
> When I first read the above I have to admit to being a little 
> sceptical - several of the books I have point out that fuses and 
> their ratings are a very misunderstood subject, but then they don't 
> really give the whole story. I thought it was a power thing, but in 
> fact it is a current thing - hence on the basis the psu takes the 
> same power whether running off 240V or 110V, in the US/Canada, half 
> the voltage implies *double* the current, so what Joe says above 
> sounds very feasible. After searching the web (it's 
> called 'fuseology', what a yeuchy term!) I came across this:
> 
> http://www.littelfuse.com/PDFs/EDG_Cat/Fuseology.pdf
> 
> Take a gander if you want to be convinced by the complexity of it!
> 
> I'm thus a little surprised that Doepfer ship units to North America 
> with the same fuse rating as Europe when it looks like it could be a 
> little marginal - it would be nice to hear Dieter's take on it.
> 
> In any case, it sounds like Dan has his system running OK, at least 
> in the short term.
> 
> Tim