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Doepfer

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Re: [Doepfer_a100] Question about safety

2007-05-21 by andre goncalves

Hello,
Thankx for the sugestions!

can you give me any internet link where i could maybe buy those 
accumulators?
do they have a separate charger?
i have two portable cabinets, how long does the batteries would last?

best regards
andre


On May 21, 2007, at 2:08 PM, Florian Anwander wrote:

> Hi Andre
>
>  > Would i be in risk here, with the doepfer connected to an ac supply?
>  > Any major not advised thing would be envolved here?
>
>  There are two major risks of water and electricity:
>
>  It is NOT the water in the basin itself, but the connection it can 
> make
>  to earth. The danger of the water in the bathtube is not the water in
>  the bathtube, but the electrical connection to ground which is 
> provided
>  by the water, that is running through the drain to the ground.
>
>  THe other and more important aspect of danger of water with any kind 
> of
>  electronics is, that you will have wet hands and water is dripping
>  around from your hands into the housing and will find its way to the
>  powersupply. Then it will find a possibility to shorten 220 Volts from
>  the next corner powerplant direct to the 12V driven modules. And I
>  assume you worked hard for the money to buy them.
>
>  So my decent hint is: Remove the AC-Powersupply from the housing and
>  install a connector (E.g. asymetric XLR) for +12V, -12V, and Ground.
>
>  Now you can feed this with any kind of DC-power. Either you build the
>  original Doepfer powersupply in a separate waterproof housing, or you
>  use some batteries or accumulators for it.
>
>  I once modified a a 3HE Housing for the usage as portable theremin. It
>  uses 12 V Accumulators:
>
> http://fa.utfs.org/diy/a100/index.html
>
>  You may have to scroll down the left frame to find the pics with the
>  accumulators
>
>  Florian
>
>

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