Doepfer

> (dieter, is there a hack to increase the range of the tune knob on
> the standard vco ?)

www.doepfer.com > PRODUCTS > A-100 Modules Overview > A-110 > Service Manual
> R5 (internal remarks, only in German available, Anpassung R5). Decreasing
R5 (now 1M increases the tune range)

Please look also at the A-100 DIY page:

4. Module modifications
4.1. General modifications (not for one module only)
4.1.1. Changing the sensitivity of manual controls, control voltage inputs
and audio inputs

Best wishes
Dieter Doepfer


> and there must be a dozen other things that i'm forgetting or
> that other users need that i
> don't.
>
> it appears i'm dancing around under the radar here, which implies
> that silas is quite right
> that there's not enough interest. i'm just puzzled that nobody
> else sees any sense in it.
>
> 'cept silas, who's going to vote against it :))
>
> stu
> --- In Doepfer_a100@yahoogroups.com, Bakis Sirros
> <synth_freak_2000@...> wrote:
> >
> > so, Silas:
> > if you are sure what this module should do and what
> > features should have, then, please, tell me "exactly"
> > what the poll should say.
> > then i can create it.
> > best regards,
> > Bakis.
> >
> >
> > --- Silas Johansen <sijodk@...> wrote:
> >
> > > Hadn't considered getting the A-129-3 for this
> > > purpose. It suits my needs
> > > quite satisfactorily (except I'm not sure if I get
> > > exactly 1.00 x
> > > amplification is I turn the attenuator knob all the
> > > way to the right) so I'm
> > > tempted to get one. Also, I'm very well aware that
> > > between the members of
> > > this list we can probably come up with a thousand
> > > designs for modules that
> > > would work perfectly for some particular purpose,
> > > but most of them would
> > > probably only be sold in *very* limited quantities
> > > (like one or two to
> > > whoever came up with the idea).
> > >
> > > Also, my ideas for this module should prove fairly
> > > simple to implement, so
> > > it's probably a good DIY project. I will therefore
> > > be tempted to vote no to
> > > my own suggestion when the poll comes up.
> > >
> > > /Silas
> > >
> > > On 6/19/07, hardware@...
> > > <hardware@...> wrote:
> > > >
> > > >   As I'm doubtful how many users are asking for
> > > such a dual module
> > > > (keeping in
> > > > mind that we already have A-176 and the offset
> > > functions of the mixers and
> > > > the 5-fold offset/attenuator module A-129-3). I
> > > ask you (Bakis) to start a
> > > > poll for such a 2-fold offset module. Thank you.
> > > >
> > > > Dieter Doepfer
> > > >
> > > > > -----Ursprungliche Nachricht-----
> > > > > Von: Doepfer_a100@yahoogroups.com
> > > <Doepfer_a100%40yahoogroups.com>
> > > > > [mailto:Doepfer_a100@yahoogroups.com
> > > <Doepfer_a100%40yahoogroups.com>]Im
> > > > Auftrag von Silas Johansen
> > > > > Gesendet: Montag, 18. Juni 2007 18:42
> > > > > An: Doepfer_a100@yahoogroups.com
> > > <Doepfer_a100%40yahoogroups.com>
> > > > > Betreff: Re: [Doepfer_a100] Re: adding cv offset
> > > >
> > > > >
> > > > >
> > > > > A voltage offset module would be convenient in
> > > the patches below:
> > > > >
> > > > > Audio source --> A-119 --> Voltage Offset -->
> > > A-155 lower row ext. input
> > > > > LFO/VCO --> Voltage Offset --> A-155 lower row
> > > ext. input
> > > > >
> > > > > An input voltage attenuator would be convenient.
> > > Built in amplification
> > > > of
> > > > > line level signals would eliminate the need for
> > > an A-199 in the
> > > > > first patch.
> > > > >
> > > > > One could fit two of these to an 8HP panel if
> > > each included only in &
> > > > out
> > > > > jacks and input attenuator/amplifier and voltage
> > > offset knobs. One half
> > > > > would even have room for an extra jack, perhaps
> > > inverse out or an extra
> > > > CV
> > > > > input with or without attenuator (without
> > > attenuator would be useful for
> > > > > voltages coming from a 1V/Oct. CV source) and an
> > > extra pot, the
> > > > > aforementioned attenuator for input two or fine
> > > tune of voltage offset.
> > > > > Undoubtedly somebody will have other good
> > > suggestions.
> > > > >
> > > > > Without an input each half should output the
> > > offset voltage. This would
> > > > in
> > > > > my opinion make for a module similar to but much
> > > more useful than
> > > > > the A-176,
> > > > > especially if one half had fine control of
> > > offset and an
> > > > > unattenuated input.
> > > > > Granted, only two outputs would be available,
> > > but the addition of
> > > > > the offset
> > > > > feature would make up for it.
> > > > >
> > > > > Also, the tuning range of my VCOs is limited to
> > > a couple of half
> > > > > tone steps.
> > > > > Detuning one by a larger amount requires the use
> > > of a constant CV
> > > > > source and
> > > > > either a mixer or the CV2 input - this module,
> > > esp. with an unattenuated
> > > > > input, would be a killer for "fat fifth" type
> > > sounds.
> > > > >
> > > > > What I'm describing above is similar and in my
> > > opinion superior to the
> > > > > dotcom q125.
> > > > >
> > > > > /Silas
> > > > >
> > > > > On 6/18/07, hardware@...
> > > <hardware%40doepfer.de> <
> > > > hardware@... <hardware%40doepfer.de>>
> > > wrote:
> > > > > >
> > > > > > > ... but i'm surprised that there is no
> > > dedicated offset module -
> > > > > > > something like 4HE with an input, output and
> > > a +/- knob that
> > > > > > > could regulate a constant output when
> > > nothing is connected to
> > > > > the input.
> > > > > >
> > > > > > With a few exceptions (e.g. A-132) both an
> > > offset control and a
> > > > control
> > > > > > voltage input with attenuator are available
> > > for each voltage
> > > > controlled
> > > > > > parameter of a module. This is why normally
> > > separate offset
> > > > > generators and
> > > > > > attenuators are not necessary in the A-100.
> > > > > >
> > > > > > If necessary (e.g. as an offset for the A-132)
> > > the manual CV
> > > > > source A-176
> > > > > > could be used as an offset generator. This is
> > > why I don't see the
> > > > > > necessity
> > > > > > of a dedicated offset module. But I'm open for
> > > suggestions if I
> > > > > overlooked
> > > > > > something.
> > > > > >
> > > > > > Best wishes
> > > > > > Dieter Doepfer
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > > [Non-text portions of this message have been
> > > removed]
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Yahoo! Groups Links
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > [Non-text portions of this message have been
> > > removed]
> > >
> > >
> >
> >
> > Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
> > [Doepfer_a100] group owner
> > http://www.parallel-worlds-music.com
> > http://www.myspace.com/parallelworldsmusic
> > http://www.myspace.com/interconnectedmusic
> > http://www.myspace.com/memorygeist
> > http://www.DiN.org.uk
> > http://www.shimarecords.co.uk
> > http://www.rubber.gr
> > Athens-Greece
> >
> >
> >
> >
> __________________________________________________________________
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