[sdiy] buffering outputs and routing signals (SEM modular related)

[Magnus Danielson]

From: nederlandsche spoorwegen <ns at quicknet.nl>
Subject: [sdiy] buffering outputs and routing signals (SEM modular related)
Date: Sun, 25 Jul 2004 17:53:35 +0200
Message-ID: <4103D77F.3030202 at quicknet.nl>

> Hello girls and boys...

Hi Nico!

> Recently, I got my greedy hands on 2 Oberheim SEM cards. I'm now in the 
> proces of getting these beauty's racked (SE Obie Rack style) and adding 
> a second panel with all the modular stuff they're capable of...

Is there doing that... ;O)

> I still have to decide if I'm going banana's or just jacks. Part of that 
> decision is dependant on my capability of buffering the ouputs. I'm 
> quite a noob, electronically speaking, and I'm wondering if you guys 
> (and girls too) can help me out with (SIMPLE!) solutions to buffer the 
> outputs of both SEM's and also some other kits I'm planning on building 
> into the goodie panel. I don't want to blow shit up when I'm patching 
> outputs into multiple destinations...

I use Switchcraft 12A 1/4" jacks with CC-distance of 20 mm for 20 of the
signals and then I have 4 13A jacks (stereo) for 8 signals. Some signals was
left out at this time, but I think I will use additional CV inputs for a
sequencer thing that I will build into the lid of my box.

Actually, I have just wired one of my SEMs up to the jacks and have started to
wire up the other. I use the crimped contacts, different colored AWG22 cable
and tie the cables into bundles using waxed nylon (whatever the propper english
term is for it).

So, there is no buffers, but then most signals will be from within the box, so
it is only patching around on the same supply.

To start with I will be using a bunch of cables I got from a guitar-shop, 6
cables of different colours in a bag for a fair amount of money, so I took two
of those. I will make some additional cables and special purpose cables.

Cheers,
Magnus