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AW: [Doepfer_a100] A-163-not working with A111: Is there a mod?

2006-03-17 by Dieter Doepfer

Olivier,

this is one of the seldom not working patches. The reason is that the A-110
rectangle output is DC coupled but the A-111 rectangle output is AC coupled
with a capacitor at its output. We overlooked this specialty when the A-163
was designed as it has been always tested with the A-110 only. There are two
possible solutions: shortening the capacitor C10 of the A-111 (located on
A-111 board C close to the 10 pin connector). This changes the output from
AC to DC coupling (even a switch can be added). Another solution that should
work is to add a pull down resistor (about 10...100k) to the A-163 input
(from the input to GND). But I have to try this out.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von waveform100
> Gesendet: Freitag, 17. März 2006 12:07
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] A-163-not working with A111: Is there a mod?
>
> Hi, my new A-163 CV-Divider doesn't work with the A111-Square. It does
> work with the A110 square and saw. I love the 163 BTW.
>
> Is there a simple mod to change this? I can solder....
>
> Olivier

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