Doepfer

hi all,

i have, so far, 4 buchla vco's (one 259e, one 261e and two 258v). i so would want to be able to play melodies (or create a 4 voice pad!!) with a simple cheap midi interface for the Buchla 200e...

i really don't need to buy the (expensive and space demanding) 225e... (and btw, for midi CC to cv conversion, there are already many midi to cv interfaces/modules in the market already...)

so, my question is simple:

why anyone does not make a simple euro format module (Doepfer??), that would transform a standard 1volt/oct cv/gate signal (coming from any midi to cv intefrace) to a Buchla type cv/gate signal. (meaning: a 1volt/oct output to a 1.2volts/oct output and a simple 5-10volts gate to the special combined trigger+gate Buchla type signal!).

that would be so easy to do for a euro modules manufacturer!

make one of these simple modules, please, (it would be a dual unit in only 4HP!! as it only needs 8 minijack sockets for a dual unit!) and i'll buy two of them!

i am sure many other Buchla users have also some eurorack, and would easily buy that cheap module to convert their standard midi-cv interfaces into a Buchla type midi to cv!

or an alternative:

a simple midi to cv interface for Buchla's 
1.2 volts/Oct (and its special gate/trigger signals) standard, either as
 a stand alone box, or as an Eardrill modulemodule submodule?

make it happen!

best regards,    :-)
Bakis.


Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. facebook. com/ pages/Parallel-Worlds/192093934136476

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. vu-us. com

[Non-text portions of this message have been removed]

Silentway?

On 8/17/11, Bakis Sirros <synth_freak_2000@yahoo.com> wrote:
> hi all,
>
> i have, so far, 4 buchla vco's (one 259e, one 261e and two 258v). i so would
> want to be able to play melodies (or create a 4 voice pad!!) with a simple
> cheap midi interface for the Buchla 200e...
>
> i really don't need to buy the (expensive and space demanding) 225e... (and
> btw, for midi CC to cv conversion, there are already many midi to cv
> interfaces/modules in the market already...)
>
> so, my question is simple:
>
> why anyone does not make a simple euro format module (Doepfer??), that would
> transform a standard 1volt/oct cv/gate signal (coming from any midi to cv
> intefrace) to a Buchla type cv/gate signal. (meaning: a 1volt/oct output to
> a 1.2volts/oct output and a simple 5-10volts gate to the special combined
> trigger+gate Buchla type signal!).
>
> that would be so easy to do for a euro modules manufacturer!
>
> make one of these simple modules, please, (it would be a dual unit in only
> 4HP!! as it only needs 8 minijack sockets for a dual unit!) and i'll buy two
> of them!
>
> i am sure many other Buchla users have also some eurorack, and would easily
> buy that cheap module to convert their standard midi-cv interfaces into a
> Buchla type midi to cv!
>
> or an alternative:
>
> a simple midi to cv interface for Buchla's
> 1.2 volts/Oct (and its special gate/trigger signals) standard, either as
>  a stand alone box, or as an Eardrill modulemodule submodule?
>
> make it happen!
>
> best regards,    :-)
> Bakis.
>
>
> Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
>
> [Doepfer_a100] group owner
>
> www. parallel - worlds - music. com
>
> www. facebook. com/ pages/Parallel-Worlds/192093934136476
>
> www. myspace. com/ parallelworldsmusic
>
> www. myspace. com/ interconnectedmusic
>
> www. myspace. com/ memorygeist
>
> www. DiN. org. uk
>
> www. musicamaximamagnetica. com
>
> www. vu-us. com
>
> [Non-text portions of this message have been removed]
>
>

-- 
Sent from my mobile device

hardwareway, please?     ;-)

Bakis 

--- On Wed, 8/17/11, pierre leite <pierre.leite@gmail.com> wrote:

From: pierre leite <pierre.leite@gmail.com>
Subject: Re: [Doepfer_a100] simple Midi for Buchla or a 1volt/oct to 1.2volts/oct euro module!?
To: Doepfer_a100@yahoogroups.com, "Buchla 200e group" <200e@yahoogroups.com>
Date: Wednesday, August 17, 2011, 3:48 PM







 



  


    
      
      
      Silentway?



On 8/17/11, Bakis Sirros <synth_freak_2000@yahoo.com> wrote:

> hi all,

>

> i have, so far, 4 buchla vco's (one 259e, one 261e and two 258v). i so would

> want to be able to play melodies (or create a 4 voice pad!!) with a simple

> cheap midi interface for the Buchla 200e...

>

> i really don't need to buy the (expensive and space demanding) 225e... (and

> btw, for midi CC to cv conversion, there are already many midi to cv

> interfaces/modules in the market already...)

>

> so, my question is simple:

>

> why anyone does not make a simple euro format module (Doepfer??), that would

> transform a standard 1volt/oct cv/gate signal (coming from any midi to cv

> intefrace) to a Buchla type cv/gate signal. (meaning: a 1volt/oct output to

> a 1.2volts/oct output and a simple 5-10volts gate to the special combined

> trigger+gate Buchla type signal!).

>

> that would be so easy to do for a euro modules manufacturer!

>

> make one of these simple modules, please, (it would be a dual unit in only

> 4HP!! as it only needs 8 minijack sockets for a dual unit!) and i'll buy two

> of them!

>

> i am sure many other Buchla users have also some eurorack, and would easily

> buy that cheap module to convert their standard midi-cv interfaces into a

> Buchla type midi to cv!

>

> or an alternative:

>

> a simple midi to cv interface for Buchla's

> 1.2 volts/Oct (and its special gate/trigger signals) standard, either as

>  a stand alone box, or as an Eardrill modulemodule submodule?

>

> make it happen!

>

> best regards,    :-)

> Bakis.

>

>

> Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

>

> [Doepfer_a100] group owner

>

> www. parallel - worlds - music. com

>

> www. facebook. com/ pages/Parallel-Worlds/192093934136476

>

> www. myspace. com/ parallelworldsmusic

>

> www. myspace. com/ interconnectedmusic

>

> www. myspace. com/ memorygeist

>

> www. DiN. org. uk

>

> www. musicamaximamagnetica. com

>

> www. vu-us. com

>

> [Non-text portions of this message have been removed]

>

>



-- 

Sent from my mobile device



    
     

    
    


 



  





[Non-text portions of this message have been removed]

> hi all,
>
> i have, so far, 4 buchla vco's (one 259e, one 261e and two 258v).
> i so would want to be able to play melodies (or create a 4 voice
> pad!!) with a simple cheap midi interface for the Buchla 200e...
>
> i really don't need to buy the (expensive and space demanding)
> 225e... (and btw, for midi CC to cv conversion, there are already
> many midi to cv interfaces/modules in the market already...)
>
> so, my question is simple:
>
> why anyone does not make a simple euro format module (Doepfer??),
> that would transform a standard 1volt/oct cv/gate signal (coming
> from any midi to cv intefrace) to a Buchla type cv/gate signal.
> (meaning: a 1volt/oct output to a 1.2volts/oct output and a
> simple 5-10volts gate to the special combined trigger+gate Buchla
> type signal!).
>
> that would be so easy to do for a euro modules manufacturer!
>
> make one of these simple modules, please, (it would be a dual
> unit in only 4HP!! as it only needs 8 minijack sockets for a dual
> unit!) and i'll buy two of them!
>
> i am sure many other Buchla users have also some eurorack, and
> would easily buy that cheap module to convert their standard
> midi-cv interfaces into a Buchla type midi to cv!
>
> or an alternative:
>
> a simple midi to cv interface for Buchla's
> 1.2 volts/Oct (and its special gate/trigger signals) standard, either as
>  a stand alone box, or as an Eardrill modulemodule submodule?
>
> make it happen!
>
> best regards,    :-)
> Bakis.

The CV of our interfaces (A-190-X) can be modified very easily to
1.2V/octave by replacing some resistors by other values. For some of the
modules the 1.2V maybe even within the adjustment range but I'll have to try
it out first.

And the additional trigger signal is nothing but a capacitor connected to
the gate if I'm not wrong. If someone has details about the Buchla style
gate/trigger please let me know. I could not find anything in my records.
Then I can decide how much effort it is to offer such a module. But I'm a
bit cautious: in the past we offered a special version of the MCV4 for EMS
synthesizers (0.32V/oct and EMS style gate/trigger). We sold less than 20
over a period of more than 3 years.

Best wishes
Dieter Doepfer

actually, i would not want to modify my A190, as i want to be able to use it for my (countless) 1 volt/oct needs too. a converter module, as i suggested, would be best...

go Dieter!



Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. facebook. com/ pages/Parallel-Worlds/192093934136476

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. vu-us. com

--- On Wed, 8/17/11, yahoo@doepfer.de <yahoo@doepfer.de> wrote:

From: yahoo@doepfer.de <yahoo@doepfer.de>
Subject: AW: [Doepfer_a100] simple Midi for Buchla or a 1volt/oct to 1.2volts/oct euro module!?
To: Doepfer_a100@yahoogroups.com
Date: Wednesday, August 17, 2011, 3:53 PM







 



  


    
      
      
      > hi all,

>

> i have, so far, 4 buchla vco's (one 259e, one 261e and two 258v).

> i so would want to be able to play melodies (or create a 4 voice

> pad!!) with a simple cheap midi interface for the Buchla 200e...

>

> i really don't need to buy the (expensive and space demanding)

> 225e... (and btw, for midi CC to cv conversion, there are already

> many midi to cv interfaces/modules in the market already...)

>

> so, my question is simple:

>

> why anyone does not make a simple euro format module (Doepfer??),

> that would transform a standard 1volt/oct cv/gate signal (coming

> from any midi to cv intefrace) to a Buchla type cv/gate signal.

> (meaning: a 1volt/oct output to a 1.2volts/oct output and a

> simple 5-10volts gate to the special combined trigger+gate Buchla

> type signal!).

>

> that would be so easy to do for a euro modules manufacturer!

>

> make one of these simple modules, please, (it would be a dual

> unit in only 4HP!! as it only needs 8 minijack sockets for a dual

> unit!) and i'll buy two of them!

>

> i am sure many other Buchla users have also some eurorack, and

> would easily buy that cheap module to convert their standard

> midi-cv interfaces into a Buchla type midi to cv!

>

> or an alternative:

>

> a simple midi to cv interface for Buchla's

> 1.2 volts/Oct (and its special gate/trigger signals) standard, either as

>  a stand alone box, or as an Eardrill modulemodule submodule?

>

> make it happen!

>

> best regards,    :-)

> Bakis.



The CV of our interfaces (A-190-X) can be modified very easily to

1.2V/octave by replacing some resistors by other values. For some of the

modules the 1.2V maybe even within the adjustment range but I'll have to try

it out first.



And the additional trigger signal is nothing but a capacitor connected to

the gate if I'm not wrong. If someone has details about the Buchla style

gate/trigger please let me know. I could not find anything in my records.

Then I can decide how much effort it is to offer such a module. But I'm a

bit cautious: in the past we offered a special version of the MCV4 for EMS

synthesizers (0.32V/oct and EMS style gate/trigger). We sold less than 20

over a period of more than 3 years.



Best wishes

Dieter Doepfer





    
     

    
    


 



  





[Non-text portions of this message have been removed]

> actually, i would not want to modify my A190, as i want to be 
> able to use it for my (countless) 1 volt/oct needs too. a 
> converter module, as i suggested, would be best...
> 
> go Dieter!

It's agonizingly boring to "design" a DC amplifier with 1.20 amplification factor. But if there are sufficient inquiries - why not. How about a poll ?
At least the gate/trigger converter should be included too (give me input :-)

Dieter

Hi Dieter

> It's agonizingly boring to "design" a DC amplifier with 1.20 amplification factor.
:-)))

> At least the gate/trigger converter should be included too (give me input :-)

I think a two channel converter would be ok:
8 sockets,
* 1V/Oct In1
* Buchla-CV Out1
* Gate In1
* Buchla-Gate Out1
* 1V/Oct In2
* Buchla-CV Out2
* Gate In2
* Buchla-Gate Out2

should fit on a 4 TE module.

Maybe one could make the amplification selectable (jumper) between a 
fixed resistor for x1.2 and a multispin trimmer.

BTW: 1.2 V/Oct is used in some other synths too (Moog Sonic 6 comes to 
my mind)

Florian

It's agonizingly boring to "design" a DC amplifier with 1.20 amplification
factor

 

+ internets

 

  _____  

Von: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com] Im
Auftrag von yahoo@doepfer.de
Gesendet: Mittwoch, 17. August 2011 09:05
An: Doepfer_a100@yahoogroups.com
Betreff: AW: AW: [Doepfer_a100] simple Midi for Buchla or a 1volt/oct to
1.2volts/oct euro module!?

 

  

> actually, i would not want to modify my A190, as i want to be 
> able to use it for my (countless) 1 volt/oct needs too. a 
> converter module, as i suggested, would be best...
> 
> go Dieter!

It's agonizingly boring to "design" a DC amplifier with 1.20 amplification
factor. But if there are sufficient inquiries - why not. How about a poll ?
At least the gate/trigger converter should be included too (give me input
:-)

Dieter





[Non-text portions of this message have been removed]

great, will create a poll for this, soon.

and, yes, a simple gate to buchla type gate+trigger converter, should be included in the same module too.

for the Buchla type Trigger+gate signal, i know that it consists of:  timing pulses that are +5V (signals with sustain) and +10V (transients only). so it is a signal that consist of an initial transient and a gate (for getting the timing info). (i do not know the duration of the transient though...)



Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. facebook. com/ pages/Parallel-Worlds/192093934136476

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. vu-us. com

--- On Wed, 8/17/11, yahoo@doepfer.de <yahoo@doepfer.de> wrote:

From: yahoo@doepfer.de <yahoo@doepfer.de>
Subject: AW: AW: [Doepfer_a100] simple Midi for Buchla or a 1volt/oct to 1.2volts/oct euro module!?
To: Doepfer_a100@yahoogroups.com
Date: Wednesday, August 17, 2011, 4:05 PM







 



  


    
      
      
      > actually, i would not want to modify my A190, as i want to be 

> able to use it for my (countless) 1 volt/oct needs too. a 

> converter module, as i suggested, would be best...

> 

> go Dieter!



It's agonizingly boring to "design" a DC amplifier with 1.20 amplification factor. But if there are sufficient inquiries - why not. How about a poll ?

At least the gate/trigger converter should be included too (give me input :-)



Dieter





    
     

    
    


 



  





[Non-text portions of this message have been removed]

exactly!

Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. facebook. com/ pages/Parallel-Worlds/192093934136476

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. vu-us. com

--- On Wed, 8/17/11, Florian Anwander <fanwander@mnet-online.de> wrote:

From: Florian Anwander <fanwander@mnet-online.de>
Subject: Re: [Doepfer_a100] simple Midi for Buchla or a 1volt/oct to 1.2volts/oct euro module!?
To: Doepfer_a100@yahoogroups.com
Date: Wednesday, August 17, 2011, 4:16 PM







 



  


    
      
      
      Hi Dieter



> It's agonizingly boring to "design" a DC amplifier with 1.20 amplification factor.

:-)))



> At least the gate/trigger converter should be included too (give me input :-)



I think a two channel converter would be ok:

8 sockets,

* 1V/Oct In1

* Buchla-CV Out1

* Gate In1

* Buchla-Gate Out1

* 1V/Oct In2

* Buchla-CV Out2

* Gate In2

* Buchla-Gate Out2



should fit on a 4 TE module.



Maybe one could make the amplification selectable (jumper) between a 

fixed resistor for x1.2 and a multispin trimmer.



BTW: 1.2 V/Oct is used in some other synths too (Moog Sonic 6 comes to 

my mind)



Florian



    
     

    
    


 



  





[Non-text portions of this message have been removed]

ok, a new poll for this module has been created. 

it will remain open for 1 month.

please, take few seconds and vote!

best regards,
Bakis.



Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. facebook. com/ pages/Parallel-Worlds/192093934136476

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. vu-us. com

--- On Wed, 8/17/11, yahoo@doepfer.de <yahoo@doepfer.de> wrote:

From: yahoo@doepfer.de <yahoo@doepfer.de>
Subject: AW: AW: [Doepfer_a100] simple Midi for Buchla or a 1volt/oct to 1.2volts/oct euro module!?
To: Doepfer_a100@yahoogroups.com
Date: Wednesday, August 17, 2011, 4:05 PM







 



  


    
      
      
      > actually, i would not want to modify my A190, as i want to be 

> able to use it for my (countless) 1 volt/oct needs too. a 

> converter module, as i suggested, would be best...

> 

> go Dieter!



It's agonizingly boring to "design" a DC amplifier with 1.20 amplification factor. But if there are sufficient inquiries - why not. How about a poll ?

At least the gate/trigger converter should be included too (give me input :-)



Dieter





    
     

    
    


 



  





[Non-text portions of this message have been removed]

This seems like a good module for Eardrill's Buchla "ModuleModule" format ( http://www.eardrill.com/modules/ModuleModule/ ) . Something that would go on the Buchla and not in the Doepfer. Doepfer could of course make it and it would be a good foot in the door into the Buchla world if Dieter would ever want to go there. I am sure there are plenty go Doepfer modules that would fit in that format with a little tweaking (changing jacks etc.).

-James

On Aug 17, 2011, at 5:32 AM, Bakis Sirros wrote:

> hi all,
> 
> i have, so far, 4 buchla vco's (one 259e, one 261e and two 258v). i so would want to be able to play melodies (or create a 4 voice pad!!) with a simple cheap midi interface for the Buchla 200e...
> 
> i really don't need to buy the (expensive and space demanding) 225e... (and btw, for midi CC to cv conversion, there are already many midi to cv interfaces/modules in the market already...)
> 
> so, my question is simple:
> 
> why anyone does not make a simple euro format module (Doepfer??), that would transform a standard 1volt/oct cv/gate signal (coming from any midi to cv intefrace) to a Buchla type cv/gate signal. (meaning: a 1volt/oct output to a 1.2volts/oct output and a simple 5-10volts gate to the special combined trigger+gate Buchla type signal!).
> 
> that would be so easy to do for a euro modules manufacturer!
> 
> make one of these simple modules, please, (it would be a dual unit in only 4HP!! as it only needs 8 minijack sockets for a dual unit!) and i'll buy two of them!
> 
> i am sure many other Buchla users have also some eurorack, and would easily buy that cheap module to convert their standard midi-cv interfaces into a Buchla type midi to cv!
> 
> or an alternative:
> 
> a simple midi to cv interface for Buchla's 
> 1.2 volts/Oct (and its special gate/trigger signals) standard, either as
> a stand alone box, or as an Eardrill modulemodule submodule?
> 
> make it happen!
> 
> best regards,    :-)
> Bakis.
> 
> 
> Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
> 
> [Doepfer_a100] group owner
> 
> www. parallel - worlds - music. com
> 
> www. facebook. com/ pages/Parallel-Worlds/192093934136476
> 
> www. myspace. com/ parallelworldsmusic
> 
> www. myspace. com/ interconnectedmusic
> 
> www. myspace. com/ memorygeist
> 
> www. DiN. org. uk
> 
> www. musicamaximamagnetica. com
> 
> www. vu-us. com
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
>

--- In Doepfer_a100@yahoogroups.com, <yahoo@...> wrote:
> At least the gate/trigger converter should be included too (give me
input :-)

The Buchla pulse is like a combined gate and trigger. The trig level is
+10v, and the gate level is 5v. Multiple triggers can be imposed upon a
sustaining gate. Buchla envelopes need the trigger part to fire, so if
only a gate is used from the Euro side, it should either have a
high-passed pulse derived from the gate and summed, or just amplify the
5v gate x2 to get a 10v gate.
These pulses have signal diodes on the outputs so that they can be
freely stacked, for a "diode or" function.
Any such panel should probably have a ground banana jack on it, so that
the systems can be well grounded together.


[Non-text portions of this message have been removed]

thank you Chris for the detailed info!


Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

www. parallel - worlds - music. com

www. facebook. com/ pages/Parallel-Worlds/192093934136476

www. DiN. org. uk

www. vu-us. com

--- On Fri, 8/19/11, cbm <cbm@well.com> wrote:

From: cbm <cbm@well.com>
Subject: Re: [Doepfer_a100] simple Midi for Buchla or a 1volt/oct to 1.2volts/oct euro module!?
To: Doepfer_a100@yahoogroups.com
Date: Friday, August 19, 2011, 11:46 AM







 



  


    
      
      
      

--- In Doepfer_a100@yahoogroups.com, <yahoo@...> wrote:

> At least the gate/trigger converter should be included too (give me

input :-)



The Buchla pulse is like a combined gate and trigger. The trig level is

+10v, and the gate level is 5v. Multiple triggers can be imposed upon a

sustaining gate. Buchla envelopes need the trigger part to fire, so if

only a gate is used from the Euro side, it should either have a

high-passed pulse derived from the gate and summed, or just amplify the

5v gate x2 to get a 10v gate.

These pulses have signal diodes on the outputs so that they can be

freely stacked, for a "diode or" function.

Any such panel should probably have a ground banana jack on it, so that

the systems can be well grounded together.



[Non-text portions of this message have been removed]





    
     

    
    


 



  





[Non-text portions of this message have been removed]