[sdiy] Serge and multiples

[Colin Fraser]

> -----Original Message-----
> From: owner-synth-diy at node12b53.a2000.nl
> [mailto:owner-synth-diy at node12b53.a2000.nl]On Behalf Of Tony Clark
> Sent: 25 February 2001 18:04
> To: Synth-DIY
> Subject: RE: [sdiy] Serge and multiples
>
>
> Think about
> this,  use a op-amp buffer with the positive pin tied to your
> banana jack
> input.  Also tie a 100K resistor to the positive pin which is
> now your
> normalized input.  When you plug into the jack, you
> effectively bypass
> the normalized input since the signal is being injected right
> into the
> op-amp positive input and the normalized signal is shut off
> by the 100K
> impedance.

But if you have 1k resistors on your outputs, you would have a noticeable
amount of the normal signal even when over-ridden by an input.
You'd have to trust yourself never to short unprotected direct outputs, or
plug two outputs together and not realise.

>    Also, one other note about stacking banana plugs, you
> don't have to
> use branch-style patching (all from one output to individual ins).
> Instead, use chaining (output->input->next input->etc).  That way you
> never are stacking more than two plugs per jack.

I take that approach at the moment, but it can be a bit confusing after a
while - maybe I'm just getting old...

>    Tony, the banana addict

I've decided to go 1/4" - don't make me change my mind again ;-)

One thing I have considered is having a banana patch panel on the back of
the modular, and connecting the normal inputs for the front panel jacks to
them. Then I could turn the synth round to configure any 'normal' patching
(or remove it altogether if I want to be a 'hardcore' synthesist).


Colin f