Doepfer

Hi Bakis

I think it is simply a DC-coupled precision-CV-mixer for two inputs: 
first input is fixed and is fed through 1:1. The second input which can 
add a voltage in a range between -10 and + 10 Volts. Maybe this should 
be solved as a DIY-project (it is very simple).

Florian

Bakis Sirros wrote:

> hello Dieter and all,
> yes, but i do not understand the purpose of this
> module.
> would it be a dual vca/offset module?
> but a vca module with offset is the 130 vca, right?
> what would be the benefit of making a dual a130
> module? only the inclusion of "a119 type" ext input
> amplification build in?
> best regards,
> Bakis.
> 
> 
> 
> --- hardware@doepfer.de 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
>>>[mailto:Doepfer_a100@yahoogroups.com]Im Auftrag
>>
>>von Silas Johansen
>>
>>>Gesendet: Montag, 18. Juni 2007 18:42
>>>An: Doepfer_a100@yahoogroups.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@doepfer.de
>>
>><hardware@doepfer.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
>>>
>>>
>>>
>>
>>
> 
> 
> 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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