--- In Doepfer_a100@y..., Stinchcombe Timothy <
tstinchcombe@q...> wrote:

> Hi M.
>
> > Actually, when I send a sawtooth signal to my software
> > oscilloscope, it shows up mirrored on the screen. When I

patch

> > the signal through the A-119 (Asym. In) before sending it to

the

> > computer, the waveform looks the way it does on the front of

the

> > module. So it seems that the A-119 inverts audio signals.
>
> This is quite likely - I've noticed that several other modules do

this, but

> since these are generally processing audio, rather than CV

signals, it won't

> help your current problem!
>
> > I believe the electronics involved in inverting a signal are
> > extremely simple (although I don't know what they are) which
> > makes me think it might be possible to fit the components

into a

> > connector or something to be placed in between two patch
> > cables.
>
> Yes, the electronics are quite straightforward - there is very

little
to an

> A-175! One problem with trying to put it into a 'cable' will be

supplying

> power to it. It would be relatively easy to make up a longer than

normal

> power ribbon (I've made up several - Maplin in UK sell the

necessary bits,

> I'll check out part nos. if interested), attach it to an unused

slot
on the

> busboard and then feed it out of the case at some convenient

point in order

> to drive a stand-alone 175, as Joe suggests.
>
> Tim

I'd be very much interested in getting longer ribbon cables.
I'm also considering placing my A-174 outside the A-100 rack, so
that the joystick is vertical. Maybe constructing a little box for it
so
that it can stand on the table top like the usual computer joystick.
The thing is, the cable that runs from the module to the busboard
needs to be longer to do this.
Are these cables with the connectors wired the way they are
available longer from somewhere I don't think I'd trust myself to
open up the connectors and simply replace the cable with a
longer one. Seems like a difficult series of small connections to
make with my crude soldering skills.

Are there people out there offering custom modifications to
Doepfer modules
I could think of some other things...

M. Dimm