Doepfer

Sam,

you find my comments written inline.

Best wishes
Dieter Doepfer

> i'm trying to plan out a diy case that should be the equivalent of 6
doepfer racks. the
> building end of this project is no problem for me but i am hoping to get
some advice on the
> electronics part. i have noticed that doepfer has the diy power supplies
available
> for purchase but i am > assuming i would need several for a case this
size. is there a
> more compact solution to powering a rack this size? something that will
alleviate the need
> for several seperate power cables running out of the back?

A linear power supply with sufficient current/power and high stability (less
than 10mV voltage change if load changes is  recommended) should be used.
But such supplies are not cheap. Another solution would be the usage of a
high quality supply only for the VCOs (as the high stability is required
mainly for VCOs) and a second lower cost supply for the other modules.
Switching supplies are not recommended from our experience (please refer to
my messages about 2-3 weeks ago concerning our experiences with switching
supplies).

> I am also wondering if anyone knows where i could get a few of the rack
rails that are built
> into the doepfer racks.

The address of the supplier is mentioned on our website > PRODUCTS > A-100 >
Mechanical details. Maybe you canb find another supplier in your home
country.

> the diy power supplies come with hardware to attach the modules to
> the case but they would require a piece of wood between the panel
> rows to attach the hardware too. I would prefer that the modules were edge
to edge
> as they are when placed in the doepfer rack.

We are working on a new version of these special rails that can be used
without the need of the additional piece of wood. They will be equipped with
additional mounting angles at the ends and wholes to connect two rails
without the wooden piece with short screws. In addition the distance between
the threads will be 1HP (instead of 2HP). The new rails will be a bit more
expensive because of the additional mouting angles and twice the number of
threads.

> any advice or tips from anyone who has built their own case would
> be very much appreciated.
> thanks!
> sam