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Doepfer

Index last updated: 2026-04-29 00:15 UTC

Message

Re: Fwd: A138 MOD. from dieter.

2003-03-21 by Tim Stinchcombe

Hi Kevin,

> I must be blind, or was looking at too many pictures, but I 
couldn't 
> find the DIY page.  Do you have a link?  THanks.

I don't think it exists yet - some weeks back Dieter was talking 
about setting it up, but I'm not aware that it has happened yet. 
Maybe this thread will precipitate its arrival! I'll be interested to 
see what they come up with for modifying a 138 - a quick look 
suggests to me that it will require cutting a track _underneath_ one 
of the jack sockets (i.e. not a 5 minute job!).

Tim


> --- In Doepfer_a100@yahoogroups.com, Bakis Sirros 
> <synth_freak_2000@y...> wrote:
> > 
> > --- Dieter Doepfer <hardware@d...> wrote:
> > > From: "Dieter Doepfer" <hardware@d...>
> > > To: "Bakis Sirros" <synth_freak_2000@y...>
> > > Subject: 
> > > Date: Fri, 21 Mar 2003 15:08:04 +0100
> > > 
> > > > Concering a message in the group:
> > > >
> > > > This might have already been discussed, but...
> > > >
> > > > I know the A129/3 does offsets, but might there be
> > > room for something
> > > > like a simple dual offset generator module?
> > > >
> > > > Regards,
> > > > Kevin
> > > 
> > > On the DIY page a simple modification for the A-138
> > > will be shown so that it
> > > works like an offset generator + attenuator. Simply
> > > the switch contact of the
> > > first jack socket (or even another one) has to be
> > > connected to +12V via a
> > > protection resistor (~ 47k). As long as no plug is
> > > inserted into the
> > > corresponding jack the attenuator knob works as
> > > offset (like the A-129/3) as the
> > > input is connected to a constant voltage that is
> > > mixed to the other inputs. As
> > > soon as a plug is inserted the input works like a
> > > normal mixer input.
> > > 
> > > Details will follow soon on our web site.
> > > 
> > > Dieter Doepfer
> > > 
> > 
> > 
> > =====
> > synthfreak(parallel worlds)
> > athens-greece
> > [Doepfer_a100] group owner-moderator
> > 
> > __________________________________________________
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