In all honesty its a very good idea to add up as it is a potential fire risk, especially if youve got any wood involved in your cases. Yeah the #1 kit is fused, so you should be ok but I personally wouldnt take the risk.

My personal power issues arose because i had not measured the current usage of some home built modules. Everything analog was fine, but my silent way modules and especially my cloud generator would randomly misbehave. Put all of my home made stuff in a suitcase rig for gigging and carefully calculated power requirements for what stayed in the home rack. My portable psu is my own design, similar to the tiptop range-linear psu ics with alot of stabilisation and filtering, i just have a single ic per bus board which should handle about 800mA which im unlikely to exceed per bus

On 10 May 2013, at 06:48, christian ienni < ienni23@... > wrote:

> hmmm... i have 5 G6 racks (& 2 mini cases) with all sorts of various modules, and have never bothered adding up current draw totals or requirements. i just put the mods in more or less logical relation to each other (oscillators -> mixers -> filters -> vcas; with envelopes, lfos & other whatnots placed where they happen to fit; the sequencer subsystem is in its own dedicated case), and have never had any problems, at least none i have ever noticed. guess i've been lucky! i probably should add things up at some point, just to make sure...
>
> ________________________________
> From: re_qu < renato.quaroni@... >
> To: Doepfer_a100@yahoogroups.com
> Sent: Thursday, May 9, 2013 7:20 PM
> Subject: 1 Re: Getting extra power to a 9U.
>
>
>
> yeah, modulargrid made me aware of the problem, though it's not always correct with it's values so i advise anyone to double check figures...
>
> so for an individual who fears the power of electricity, the only way to get more power is to add in a A-100 DIY Kit #1
>
> --- In Doepfer_a100@yahoogroups.com , James Husted <james.husted@...> wrote:
> >
> > This is where sites like http://www.modulargrid.netcome in handy. Lay out your planned modules and it will tell you power requirements and prices. It has nearly every maker out there.
> > -James
> >
> > On May 9, 2013, at 11:26 AM, analogmonster@... wrote:
> >
> > > Yeah i have 2 of the diy kit #1 doepfer psus in one 18 u case (ie 6 bus boards, 3 bus board per psu) and this is fine for me. Just means my modular rack uses 2 wall sockets not one now. But note that you need to calculate the total current draw on a module by module basis-stated by manufacturers-not just what would seem to fit the cabinet/rack size. It is best to add the total draw for positive and the total draw for negative together then add 10%. as soon as that approaches your max current draw you need to upgrade.
>
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>
>


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