Doepfer

Hey, thanks much, Laryn!  I'm flattered.  :)



If anyone's curious, the site's

www.vogelscheiss.com



and my Doepfer audio page is here:

http://www.vogelscheiss.com/modular_mp3s.htm,



while my general mp3s are here:

http://www.vogelscheiss.com/main_mp3.htm



--Chuck



--- In Doepfer_a100@yahoogroups.com, "laryn91" <caymus91@...> wrote:

>

> Thanks. BTW Chuck, I'm a big fan of your work. Not only is it very

> interesting music, but it sounds like you've mastered an impressive

> variety of genres and styles, and mastered orchestration and

> production techniques. The same skills show in your electronic work.

>

> I recommend anyone new to this or wanting to learn new techniques

> beyond the usual popular clichés to try mimicking the sounds and

> structures on your Doepfer MP3 page. In the end I always end up with

> something entirely different but learn a lot in the process.

>

> Thanks for making them available!

>

>

> --- In Doepfer_a100@yahoogroups.com, "vogelscheiss"

> <vogelscheiss@> wrote:

> >

> > I didn't expect that to look as good as it does.  Nice.

> Complements the

> > aluminum panels.

> >

> > --Chuck

> >

> >


[Non-text portions of this message have been removed]

Hi,

1. Anyone know the manufacturer and parts numbers for
Doepfer/Analogue Solutions power connectors? I've got
some circuits I'd like to board up and incorporate in
my puny rack.

2. I noticed in the schematics I've seen for mod.
synth power supplies, there isn't a lot of capacitance
after the regulators (I haven't seen a schematic for
any Doepfer PS's, mind you.) Is there any possible
advantage for "stiffening" the power supply with an
additional pair of e-lytics closer to the modules? Any
danger?



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> 1. Anyone know the manufacturer and parts numbers for
> Doepfer/Analogue Solutions power connectors? I've got
> some circuits I'd like to board up and incorporate in
> my puny rack.

If you mean the female connectors of the bus cables: these connectors are
called "IDC connectors" (female sockets for flat cable) and are available
from many manufacturers and suppliers. E.g. from Mouser (order no 164-9006
for the 10 pin and 164-9008 for the 16 pin version).

> 2. I noticed in the schematics I've seen for mod.
> synth power supplies, there isn't a lot of capacitance
> after the regulators (I haven't seen a schematic for
> any Doepfer PS's, mind you.) Is there any possible
> advantage for "stiffening" the power supply with an
> additional pair of e-lytics closer to the modules? Any
> danger?

The large capacitors have to be located before the voltage regulators, not
behind ! At the outputs of the regulators only small capacitors are required
as the regulation ("stiffening") is carried out by the voltage regulators
(integrated circuits) but not by the large capacitors.

Best wishes
Dieter Doepfer

what are they?

There are two unconnected pins on the PCB. What's up
with that?

-n


 
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Hi Neil,

> what are they?
> 
> There are two unconnected pins on the PCB. What's up
> with that?

That sounds like jumper 'JP2' at the top edge of the board: when the 
little jumper is present, it shorts out capacitor C1, which allows the 
module to process low-frequency, control-type voltages; when not there 
the module will only work with higher-frequency, audio-type of signals. 
I would normally expect it to be there unless the user has a specific 
reason for wanting to take the DC level out of the signal input.

Hope that helps.

Tim

It's a jumper for AC/DC coupling of the input. Removed -> AC (mainly for
audio processing), set -> DC (mainly for CV proccessing).

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von neil jendon
> Gesendet: Montag, 30. Oktober 2006 01:00
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] jumper pins on A-136 waveshaper
>
>
> what are they?
>
> There are two unconnected pins on the PCB. What's up
> with that?
>
> -n
>
>
>
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