Doepfer

Installing two PSUs in one cabinet may require a higher fuse.   It 
all depends on what you're powering.  The second unit itself will 
draw minimal current with no load on it.  If nothing else make 
sure you don't use a fast slow fuse,  the increased power-on 
serge from the two may take it out  and that has nothing to do 
with the load - it's just the jolt of the initial electrical serge into the 
system.

Question is...why do you need to add a second supply?  The new 
one is over an amp, yes?...plenty powerful for any combination 
you can fit into a single cabinet.  Hell, I beat you you could power 
two cabinets with one of those guys.  Possibly you're 
constructing a cabinet without a supply in it and housing it's PSU 
this other box?

If it is going into a the same cab, one thing you don't want to do 
however is mix the outputs of the two supplies on the power rail.  
This would very bad!  If you stick two PSUs in one rack, get a 
second power busboard. 

- P



 --- In Doepfer_a100@yahoogroups.com, "Nicholas Keller" 
<nirokesan@h...> wrote:
>
> Hey.
> 
>  Now I know this stuff is "Suitable for qualified personnel only 
> because of electrical safety (dangerous mains voltage 115V / 
230V)",  
> but I'll ask anyway......
> 
>   I want to have two PSUs ( a PSU2 and an older NT12) fed by 
the same 
> mains switch.  DO I HAVE TO INCREASE THE FUSE or not?  I 
notice that 
> the instructions for installing the +5V psu doesn't mention a 
change 
> of fuse.  Can anyone give input, especially someone who has 
built such 
> a custom psu array?  
> 
>   thanks 
> 
> nk
>