Hey Dieter, we talked about this before, I just dug up the post, here it
is below.
"The input of the A-112 is already DC coupled. For DC coupling of the output
one has to short the 100nF capacitor C11. From the schematics I'd expect a
negative DC offset of about -2.5V and an inverted output as the current
output of the DAC is converted into a voltage by an opamp inverter without
input resistor. You will have to add another inverter (e.g. A-175 or A-138c)
to obtain a non-inverted signal and a positive (or with A-138c adjustable)
offset.
Best wishes
Dieter Doepfer"
Sounds as though A-112 + A-138C might be the winning combination for the
original poster. He probably already has A-138C...
Tony
yahoo@...
wrote:
>
> The A-112 can be modified very easily for DC coupling: short capacitor C11
> (100nF, next to the TL064).
>
> Best wishes
> Dieter Doepfer
>
> > -----Ursprüngliche Nachricht-----
> > Von:
Doepfer_a100@yahoogroups.com
> <mailto:Doepfer_a100%40yahoogroups.com>
> > [mailto:
Doepfer_a100@yahoogroups.com
> <mailto:Doepfer_a100%40yahoogroups.com>]Im Auftrag von brian
> > Gesendet: Donnerstag, 22. Januar 2009 22:26
> > An:
Doepfer_a100@yahoogroups.com
<mailto:Doepfer_a100%40yahoogroups.com>
> > Betreff: Re: 1 a-112 - cv recording
> >
> >
> > Hello,
> >
> > I am a very new user to the euro world and have a couple modules
> > so far but recently got an A-112 second hand. My time with it
> > has only been about 1 hour so far but was wondering if it is
> > possible to record CV data as opposed to audio. It seems like I
> > was able to get quick swells from a slew-as-envelope but when I
> > slowed the timing down it didn't seem to work. I am currently
> > waiting on some proper lfo/adsr to fully test it but wanted to
> > see if any of you have any info. Likewise, if it is not set-up
> > to do so currently is there a possible mod to allow CV recording
> >
> > Thanks,
> > b.
> >
> >
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> > [Non-text portions of this message have been removed]
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
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>