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Question regarding the CV bus

2017-10-25 by Neil Kagan

Hi to you all,

for some reason I had it in my head that all of the A-100 VCOs had their 1v/o input jacks normalled to the CV bus (once the correct jumpers are set) but I have just discovered that this is not the case. My setup is as follows:

A-1852 Precision Adder 

CV bus

A-111-1
A-110-1
A-110-4
A-110-6

Having now re read the manuals, it appears only the A-110-1 has a normalled jack, so that by plugging into the 1 v/o you break the CV bus connection; the other VCOs keep getting a bus signal. Is there any way of normalling these other jacks so they behave in the same way? My wish is to be able to plug in a CV to the precision adder but then override that if I want to.

Regards,

Neil

AW: [Doepfer_a100] Question regarding the CV bus

2017-10-25 by yahoo@doepfer.de

There are two versions how a VCO may optionally access the bus:

Version 1. The CV coming from the bus is wired to the switching contact of
the socket at the front panel (provided that the corresponding jumper is
installed). In this case inserting a plug into the socket at the front panel
interrupts the bus CV.

Version 2. The CV coming from the bus is added to the CV applied to the
socket at the front panel (provided that the corresponding jumper is
installed). In this case both CVs are added.

In the beginning of the A-100 version 1 has been used for the A-110 (now
A-110-1). But many customers suggested that it would be a better solution to
add the two CVs. That way one could combine e.g. the CV coming from a
sequencer and a midi interface (e.g. for transpose) without the need of an
additional precision adder.

As far as I remember only A-110-1 uses version 1, all later VCOs use version
2. If version 1 is preferred the module has to be modified by wiring the bus
CV to the switching contact of the CV socket at the front panel and removing
the bus CV jumper.

Best wishes
Dieter Doepfer

Show quoted textHide quoted text

> Hi to you all,
>
> for some reason I had it in my head that all of the A-100 VCOs
> had their 1v/o input jacks normalled to the CV bus (once the
> correct jumpers are set) but I have just discovered that this is
> not the case. My setup is as follows:
>
> A-1852 Precision Adder
>
> CV bus
>
> A-111-1
> A-110-1
> A-110-4
> A-110-6
>
> Having now re read the manuals, it appears only the A-110-1 has a
> normalled jack, so that by plugging into the 1 v/o you break the
> CV bus connection; the other VCOs keep getting a bus signal. Is
> there any way of normalling these other jacks so they behave in
> the same way? My wish is to be able to plug in a CV to the
> precision adder but then override that if I want to.
>
> Regards,
>
> Neil

Re: AW: [Doepfer_a100] Question regarding the CV bus

2017-10-25 by Neil Kagan

Thanks Dieter!

Sent from my iPhone

Show quoted textHide quoted text

> On 25 Oct 2017, at 12:16, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> There are two versions how a VCO may optionally access the bus:
> 
> Version 1. The CV coming from the bus is wired to the switching contact of
> the socket at the front panel (provided that the corresponding jumper is
> installed). In this case inserting a plug into the socket at the front panel
> interrupts the bus CV.
> 
> Version 2. The CV coming from the bus is added to the CV applied to the
> socket at the front panel (provided that the corresponding jumper is
> installed). In this case both CVs are added.
> 
> In the beginning of the A-100 version 1 has been used for the A-110 (now
> A-110-1). But many customers suggested that it would be a better solution to
> add the two CVs. That way one could combine e.g. the CV coming from a
> sequencer and a midi interface (e.g. for transpose) without the need of an
> additional precision adder.
> 
> As far as I remember only A-110-1 uses version 1, all later VCOs use version
> 2. If version 1 is preferred the module has to be modified by wiring the bus
> CV to the switching contact of the CV socket at the front panel and removing
> the bus CV jumper.
> 
> Best wishes
> Dieter Doepfer
> 
> > Hi to you all,
> >
> > for some reason I had it in my head that all of the A-100 VCOs
> > had their 1v/o input jacks normalled to the CV bus (once the
> > correct jumpers are set) but I have just discovered that this is
> > not the case. My setup is as follows:
> >
> > A-1852 Precision Adder
> >
> > CV bus
> >
> > A-111-1
> > A-110-1
> > A-110-4
> > A-110-6
> >
> > Having now re read the manuals, it appears only the A-110-1 has a
> > normalled jack, so that by plugging into the 1 v/o you break the
> > CV bus connection; the other VCOs keep getting a bus signal. Is
> > there any way of normalling these other jacks so they behave in
> > the same way? My wish is to be able to plug in a CV to the
> > precision adder but then override that if I want to.
> >
> > Regards,
> >
> > Neil
> 
>

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-25 by james.husted@mac.com

I have to say the second method is nice when those times come up when adding CVs is what you want but really is not a good solution for when you don’t want to do that. It means you have to pull the module out to turn it OFF instead of the much simpler act of inserting a jack. I’m a firm user of the CV/Gate bus and almost every cabinet I have has a A-185 Bis Access module in it. I often mix buss use and non buss use in one cabinet and the normalizing really makes this easy. I can see where in the VCO modules that have only one CV input that this is much more useful, but would suggest that the VCOs that have two CV ins, that the normalized signal go to the 1v/oct input (with a jumper) and the variable CV input be made to have a 1v/oct response when the pot is turned fully CW. Then the mixing action could still happen.
-James

Show quoted textHide quoted text

> On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> There are two versions how a VCO may optionally access the bus:
> 
> Version 1. The CV coming from the bus is wired to the switching contact of
> the socket at the front panel (provided that the corresponding jumper is
> installed). In this case inserting a plug into the socket at the front panel
> interrupts the bus CV.
> 
> Version 2. The CV coming from the bus is added to the CV applied to the
> socket at the front panel (provided that the corresponding jumper is
> installed). In this case both CVs are added.
> 
> In the beginning of the A-100 version 1 has been used for the A-110 (now
> A-110-1). But many customers suggested that it would be a better solution to
> add the two CVs. That way one could combine e.g. the CV coming from a
> sequencer and a midi interface (e.g. for transpose) without the need of an
> additional precision adder.
> 
> As far as I remember only A-110-1 uses version 1, all later VCOs use version
> 2. If version 1 is preferred the module has to be modified by wiring the bus
> CV to the switching contact of the CV socket at the front panel and removing
> the bus CV jumper.
> 
> Best wishes
> Dieter Doepfer
> 
> 
> 
>> Hi to you all,
>> 
>> for some reason I had it in my head that all of the A-100 VCOs
>> had their 1v/o input jacks normalled to the CV bus (once the
>> correct jumpers are set) but I have just discovered that this is
>> not the case. My setup is as follows:
>> 
>> A-1852 Precision Adder
>> 
>> CV bus
>> 
>> A-111-1
>> A-110-1
>> A-110-4
>> A-110-6
>> 
>> Having now re read the manuals, it appears only the A-110-1 has a
>> normalled jack, so that by plugging into the 1 v/o you break the
>> CV bus connection; the other VCOs keep getting a bus signal. Is
>> there any way of normalling these other jacks so they behave in
>> the same way? My wish is to be able to plug in a CV to the
>> precision adder but then override that if I want to.
>> 
>> Regards,
>> 
>> Neil
> 
> 
> 
> ------------------------------------
> Posted by: <yahoo@doepfer.de>
> ------------------------------------
> 
> 
> ------------------------------------
> 
> Yahoo Groups Links
> 
> 
>

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-26 by Marlene Gutsch

hihope i understand the issue.

the A-110-4 can "normalizing".
i use the cv-gate bus in all cases.
i have two A-110-4, a A-110-2 and a A-143-4 on a A-185-2.e.g. when sending a sequence to this A-185-2, send the cv from front socket to a A-156
and back to the 1V/Oct front socket of the A-110-4's interrupts the bus CV from them.but sending the signal from the A-156 to the A-110-2 or the A-143-4 adds the bus cv to them.
from the A-110-4 short instruction:
important note: Please remove the bus jumper (JP3 "BUS CV") if no CV transmitter is installed on the same bus (e.g. a Midi/USB-to-CV interface A-190-x or a bus access module A-185-x). The A-110-4 applies a small voltage with high impedance (100k) to the CV line of the bus when the bus CV jumper is installed. This may affect other modules that pick-up CV from the bus (e.g. other VCOs). As soon as a CV transmitter is installed on the same bus the high impedance voltage of the A-110-4 is overwritten and no problem occurs !
Additional technical notes:
The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection !
please see the .pdf

ciaoroland

Von: "james.husted@mac.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
An: Doepfer_a100@yahoogroups.com
Gesendet: 17:32 Mittwoch, 25.Oktober 2017
Betreff: Re: [Doepfer_a100] Question regarding the CV bus

I have to say the second method is nice when those times come up when adding CVs is what you want but really is not a good solution for when you don’t want to do that. It means you have to pull the module out to turn it OFF instead of the much simpler act of inserting a jack. I’m a firm user of the CV/Gate bus and almost every cabinet I have has a A-185 Bis Access module in it. I often mix buss use and non buss use in one cabinet and the normalizing really makes this easy. I can see where in the VCO modules that have only one CV input that this is much more useful, but would suggest that the VCOs that have two CV ins, that the normalized signal go to the 1v/oct input (with a jumper) and the variable CV input be made to have a 1v/oct response when the pot is turned fully CW. Then the mixing action could still happen.
-James

Show quoted textHide quoted text

> On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> There are two versions how a VCO may optionally access the bus:
> 
> Version 1. The CV coming from the bus is wired to the switching contact of
> the socket at the front panel (provided that the corresponding jumper is
> installed). In this case inserting a plug into the socket at the front panel
> interrupts the bus CV.
> 
> Version 2. The CV coming from the bus is added to the CV applied to the
> socket at the front panel (provided that the corresponding jumper is
> installed). In this case both CVs are added.
> 
> In the beginning of the A-100 version 1 has been used for the A-110 (now
> A-110-1). But many customers suggested that it would be a better solution to
> add the two CVs. That way one could combine e.g. the CV coming from a
> sequencer and a midi interface (e.g. for transpose) without the need of an
> additional precision adder.
> 
> As far as I remember only A-110-1 uses version 1, all later VCOs use version
> 2. If version 1 is preferred the module has to be modified by wiring the bus
> CV to the switching contact of the CV socket at the front panel and removing
> the bus CV jumper.
> 
> Best wishes
> Dieter Doepfer
> 
> 
> 
>> Hi to you all,
>> 
>> for some reason I had it in my head that all of the A-100 VCOs
>> had their 1v/o input jacks normalled to the CV bus (once the
>> correct jumpers are set) but I have just discovered that this is
>> not the case. My setup is as follows:
>> 
>> A-1852 Precision Adder
>> 
>> CV bus
>> 
>> A-111-1
>> A-110-1
>> A-110-4
>> A-110-6
>> 
>> Having now re read the manuals, it appears only the A-110-1 has a
>> normalled jack, so that by plugging into the 1 v/o you break the
>> CV bus connection; the other VCOs keep getting a bus signal. Is
>> there any way of normalling these other jacks so they behave in
>> the same way? My wish is to be able to plug in a CV to the
>> precision adder but then override that if I want to.
>> 
>> Regards,
>> 
>> Neil
> 
> 
> 
> ------------------------------------
> Posted by: <yahoo@doepfer.de>
> ------------------------------------
> 
> 
> ------------------------------------
> 
> Yahoo Groups Links
> 
> 
>

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-26 by Nicholas Keller

Roland (?),

Your report doesn't make sense to me.  According to Dieter and the text that you quoted, it can't work both ways.

Show quoted textHide quoted text

> On Oct 26, 2017, at 12:11 PM, Marlene Gutsch marlene.gutsch@yahoo.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> hi
> hope i understand the issue.
> 
> the A-110-4 can "normalizing".
> i use the cv-gate bus in all cases.
> i have two A-110-4, a A-110-2 and a A-143-4 on a A-185-2.
> e.g. when sending a sequence to this A-185-2, send the cv from front socket to a A-156 
> and back to the 1V/Oct front socket of the A-110-4's interrupts the bus CV from them.
> but sending the signal from the A-156 to the A-110-2 or the A-143-4 adds the bus cv to them.
> 
> from the A-110-4 short instruction:
> 
> important note: Please remove the bus jumper (JP3 "BUS CV") if no CV transmitter is installed on the same bus (e.g. a Midi/USB-to-CV interface A-190-x or a bus access module A-185-x). The A-110-4 applies a small voltage with high impedance (100k) to the CV line of the bus when the bus CV jumper is installed. This may affect other modules that pick-up CV from the bus (e.g. other VCOs). As soon as a CV transmitter is installed on the same bus the high impedance voltage of the A-110-4 is overwritten and no problem occurs !
> 
> Additional technical notes:
> 
> The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection !
> 
> please see the .pdf
> 
> ciao
> roland
> 
> 
> Von: "james.husted@mac.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
> An: Doepfer_a100@yahoogroups.com 
> Gesendet: 17:32 Mittwoch, 25.Oktober 2017
> Betreff: Re: [Doepfer_a100] Question regarding the CV bus
> 
>  
> I have to say the second method is nice when those times come up when adding CVs is what you want but really is not a good solution for when you don’t want to do that. It means you have to pull the module out to turn it OFF instead of the much simpler act of inserting a jack. I’m a firm user of the CV/Gate bus and almost every cabinet I have has a A-185 Bis Access module in it. I often mix buss use and non buss use in one cabinet and the normalizing really makes this easy. I can see where in the VCO modules that have only one CV input that this is much more useful, but would suggest that the VCOs that have two CV ins, that the normalized signal go to the 1v/oct input (with a jumper) and the variable CV input be made to have a 1v/oct response when the pot is turned fully CW. Then the mixing action could still happen.
> -James
> 
> > On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> > 
> > There are two versions how a VCO may optionally access the bus:
> > 
> > Version 1. The CV coming from the bus is wired to the switching contact of
> > the socket at the front panel (provided that the corresponding jumper is
> > installed). In this case inserting a plug into the socket at the front panel
> > interrupts the bus CV.
> > 
> > Version 2. The CV coming from the bus is added to the CV applied to the
> > socket at the front panel (provided that the corresponding jumper is
> > installed). In this case both CVs are added.
> > 
> > In the beginning of the A-100 version 1 has been used for the A-110 (now
> > A-110-1). But many customers suggested that it would be a better solution to
> > add the two CVs. That way one could combine e.g. the CV coming from a
> > sequencer and a midi interface (e.g. for transpose) without the need of an
> > additional precision adder.
> > 
> > As far as I remember only A-110-1 uses version 1, all later VCOs use version
> > 2. If version 1 is preferred the module has to be modified by wiring the bus
> > CV to the switching contact of the CV socket at the front panel and removing
> > the bus CV jumper.
> > 
> > Best wishes
> > Dieter Doepfer
> > 
> > 
> > 
> >> Hi to you all,
> >> 
> >> for some reason I had it in my head that all of the A-100 VCOs
> >> had their 1v/o input jacks normalled to the CV bus (once the
> >> correct jumpers are set) but I have just discovered that this is
> >> not the case. My setup is as follows:
> >> 
> >> A-1852 Precision Adder
> >> 
> >> CV bus
> >> 
> >> A-111-1
> >> A-110-1
> >> A-110-4
> >> A-110-6
> >> 
> >> Having now re read the manuals, it appears only the A-110-1 has a
> >> normalled jack, so that by plugging into the 1 v/o you break the
> >> CV bus connection; the other VCOs keep getting a bus signal. Is
> >> there any way of normalling these other jacks so they behave in
> >> the same way? My wish is to be able to plug in a CV to the
> >> precision adder but then override that if I want to.
> >> 
> >> Regards,
> >> 
> >> Neil
> > 
> > 
> > 
> > ------------------------------------
> > Posted by: <yahoo@doepfer.de>
> > ------------------------------------
> > 
> > 
> > ------------------------------------
> > 
> > Yahoo Groups Links
> > 
> > 
> > 
> 
> 
>

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-26 by Marlene Gutsch

hi
it only works with the A-110-4.
as written , i have two of them. i use them in many patches. it works, really ;-)
the BUS CV jumper 3 is for the connection to the bus, AND jumper 2 is for adding/interrupting the 1V/Oct socket cv to the bus cv.
when jumper 2 is installed, cv applied to the 1V/Oct socket is added to the bus cv.----------------------------------------
from the doepfer website :

The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection !-------------------------------------
ciaoroland( have a problem with my account, therefore i use this address in the meantime)

Von: "Nicholas Keller maq163x2@gmail.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
An: Doepfer_a100@yahoogroups.com
Gesendet: 18:38 Donnerstag, 26.Oktober 2017
Betreff: Re: [Doepfer_a100] Question regarding the CV bus

Roland (?),
Your report doesn't make sense to me. According to Dieter and the text that you quoted, it can't work both ways.

On Oct 26, 2017, at 12:11 PM, Marlene Gutsch marlene.gutsch@yahoo.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:

hihope i understand the issue.

ciaoroland

Show quoted textHide quoted text

> On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> There are two versions how a VCO may optionally access the bus:
> 
> Version 1. The CV coming from the bus is wired to the switching contact of
> the socket at the front panel (provided that the corresponding jumper is
> installed). In this case inserting a plug into the socket at the front panel
> interrupts the bus CV.
> 
> Version 2. The CV coming from the bus is added to the CV applied to the
> socket at the front panel (provided that the corresponding jumper is
> installed). In this case both CVs are added.
> 
> In the beginning of the A-100 version 1 has been used for the A-110 (now
> A-110-1). But many customers suggested that it would be a better solution to
> add the two CVs. That way one could combine e.g. the CV coming from a
> sequencer and a midi interface (e.g. for transpose) without the need of an
> additional precision adder.
> 
> As far as I remember only A-110-1 uses version 1, all later VCOs use version
> 2. If version 1 is preferred the module has to be modified by wiring the bus
> CV to the switching contact of the CV socket at the front panel and removing
> the bus CV jumper.
> 
> Best wishes
> Dieter Doepfer
> 
> 
> 
>> Hi to you all,
>> 
>> for some reason I had it in my head that all of the A-100 VCOs
>> had their 1v/o input jacks normalled to the CV bus (once the
>> correct jumpers are set) but I have just discovered that this is
>> not the case. My setup is as follows:
>> 
>> A-1852 Precision Adder
>> 
>> CV bus
>> 
>> A-111-1
>> A-110-1
>> A-110-4
>> A-110-6
>> 
>> Having now re read the manuals, it appears only the A-110-1 has a
>> normalled jack, so that by plugging into the 1 v/o you break the
>> CV bus connection; the other VCOs keep getting a bus signal. Is
>> there any way of normalling these other jacks so they behave in
>> the same way? My wish is to be able to plug in a CV to the
>> precision adder but then override that if I want to.
>> 
>> Regards,
>> 
>> Neil
> 
> 
> 
> ------------------------------------
> Posted by: <yahoo@doepfer.de>
> ------------------------------------
> 
> 
> ------------------------------------
> 
> Yahoo Groups Links
> 
> 
>

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-26 by Nicholas Keller

Oh!  I didn't catch that the last part was about JP2!   I don't have a 110-4 so was just going by what had been said so far in this thread. 

Neil, are you still following this?

Show quoted textHide quoted text

> On Oct 26, 2017, at 3:09 PM, Marlene Gutsch marlene.gutsch@yahoo.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> hi
> it only works with the A-110-4. 
> as written , i have two of them. i use them in many patches. it works, really ;-)
> 
> the BUS CV jumper 3 is for the connection to the bus, AND jumper 2 is for adding/interrupting the 1V/Oct socket cv to the bus cv.
> when jumper 2 is installed, cv applied to the 1V/Oct socket is added to the bus cv.
> ----------------------------------------
> from the doepfer website :
> 
> The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection !
> -------------------------------------
> ciao
> roland
> ( have a problem with my account, therefore i use this address in the meantime)
> 
> 
> 
> Von: "Nicholas Keller maq163x2@gmail.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
> An: Doepfer_a100@yahoogroups.com 
> Gesendet: 18:38 Donnerstag, 26.Oktober 2017
> Betreff: Re: [Doepfer_a100] Question regarding the CV bus
> 
>  
> Roland (?),
> 
> Your report doesn't make sense to me.  According to Dieter and the text that you quoted, it can't work both ways. 
> 
> 
> 
>> On Oct 26, 2017, at 12:11 PM, Marlene Gutsch marlene.gutsch@yahoo.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> hi
>> hope i understand the issue.
>> 
>> the A-110-4 can "normalizing".
>> i use the cv-gate bus in all cases.
>> i have two A-110-4, a A-110-2 and a A-143-4 on a A-185-2.
>> e.g. when sending a sequence to this A-185-2, send the cv from front socket to a A-156 
>> and back to the 1V/Oct front socket of the A-110-4's interrupts the bus CV from them.
>> but sending the signal from the A-156 to the A-110-2 or the A-143-4 adds the bus cv to them.
>> 
>> from the A-110-4 short instruction:
>> 
>> important note: Please remove the bus jumper (JP3 "BUS CV") if no CV transmitter is installed on the same bus (e.g. a Midi/USB-to-CV interface A-190-x or a bus access module A-185-x). The A-110-4 applies a small voltage with high impedance (100k) to the CV line of the bus when the bus CV jumper is installed. This may affect other modules that pick-up CV from the bus (e.g. other VCOs). As soon as a CV transmitter is installed on the same bus the high impedance voltage of the A-110-4 is overwritten and no problem occurs !
>> 
>> Additional technical notes:
>> 
>> The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection !
>> 
>> please see the .pdf
>> 
>> ciao
>> roland
>> 
>> 
>> Von: "james.husted@mac.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
>> An: Doepfer_a100@yahoogroups.com 
>> Gesendet: 17:32 Mittwoch, 25.Oktober 2017
>> Betreff: Re: [Doepfer_a100] Question regarding the CV bus
>> 
>>  
>> I have to say the second method is nice when those times come up when adding CVs is what you want but really is not a good solution for when you don’t want to do that. It means you have to pull the module out to turn it OFF instead of the much simpler act of inserting a jack. I’m a firm user of the CV/Gate bus and almost every cabinet I have has a A-185 Bis Access module in it. I often mix buss use and non buss use in one cabinet and the normalizing really makes this easy. I can see where in the VCO modules that have only one CV input that this is much more useful, but would suggest that the VCOs that have two CV ins, that the normalized signal go to the 1v/oct input (with a jumper) and the variable CV input be made to have a 1v/oct response when the pot is turned fully CW. Then the mixing action could still happen.
>> -James
>> 
>> > On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>> > 
>> > There are two versions how a VCO may optionally access the bus:
>> > 
>> > Version 1. The CV coming from the bus is wired to the switching contact of
>> > the socket at the front panel (provided that the corresponding jumper is
>> > installed). In this case inserting a plug into the socket at the front panel
>> > interrupts the bus CV.
>> > 
>> > Version 2. The CV coming from the bus is added to the CV applied to the
>> > socket at the front panel (provided that the corresponding jumper is
>> > installed). In this case both CVs are added.
>> > 
>> > In the beginning of the A-100 version 1 has been used for the A-110 (now
>> > A-110-1). But many customers suggested that it would be a better solution to
>> > add the two CVs. That way one could combine e.g. the CV coming from a
>> > sequencer and a midi interface (e.g. for transpose) without the need of an
>> > additional precision adder.
>> > 
>> > As far as I remember only A-110-1 uses version 1, all later VCOs use version
>> > 2. If version 1 is preferred the module has to be modified by wiring the bus
>> > CV to the switching contact of the CV socket at the front panel and removing
>> > the bus CV jumper.
>> > 
>> > Best wishes
>> > Dieter Doepfer
>> > 
>> > 
>> > 
>> >> Hi to you all,
>> >> 
>> >> for some reason I had it in my head that all of the A-100 VCOs
>> >> had their 1v/o input jacks normalled to the CV bus (once the
>> >> correct jumpers are set) but I have just discovered that this is
>> >> not the case. My setup is as follows:
>> >> 
>> >> A-1852 Precision Adder
>> >> 
>> >> CV bus
>> >> 
>> >> A-111-1
>> >> A-110-1
>> >> A-110-4
>> >> A-110-6
>> >> 
>> >> Having now re read the manuals, it appears only the A-110-1 has a
>> >> normalled jack, so that by plugging into the 1 v/o you break the
>> >> CV bus connection; the other VCOs keep getting a bus signal. Is
>> >> there any way of normalling these other jacks so they behave in
>> >> the same way? My wish is to be able to plug in a CV to the
>> >> precision adder but then override that if I want to.
>> >> 
>> >> Regards,
>> >> 
>> >> Neil
>> > 
>> > 
>> > 
>> > ------------------------------------
>> > Posted by: <yahoo@doepfer.de>
>> > ------------------------------------
>> > 
>> > 
>> > ------------------------------------
>> > 
>> > Yahoo Groups Links
>> > 
>> > 
>> > 
>> 
>> 
> 
> 
> 
>

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-27 by Neil Kagan

I am, will try this out later!

Sent from my iPhone

Show quoted textHide quoted text

> On 26 Oct 2017, at 21:17, Nicholas Keller maq163x2@gmail.com [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Oh!  I didn't catch that the last part was about JP2!   I don't have a 110-4 so was just going by what had been said so far in this thread. 
> 
> Neil, are you still following this?
> 
>> On Oct 26, 2017, at 3:09 PM, Marlene Gutsch marlene.gutsch@yahoo.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>> 
>>  
>> hi
>> it only works with the A-110-4. 
>> as written , i have two of them. i use them in many patches. it works, really ;-)
>> 
>> the BUS CV jumper 3 is for the connection to the bus, AND jumper 2 is for adding/interrupting the 1V/Oct socket cv to the bus cv.
>> when jumper 2 is installed, cv applied to the 1V/Oct socket is added to the bus cv.
>> ----------------------------------------
>> from the doepfer website :
>> 
>> The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection !
>> -------------------------------------
>> ciao
>> roland
>> ( have a problem with my account, therefore i use this address in the meantime)
>> 
>> 
>> 
>> Von: "Nicholas Keller maq163x2@gmail.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
>> An: Doepfer_a100@yahoogroups.com 
>> Gesendet: 18:38 Donnerstag, 26.Oktober 2017
>> Betreff: Re: [Doepfer_a100] Question regarding the CV bus
>> 
>>  
>> Roland (?),
>> 
>> Your report doesn't make sense to me.  According to Dieter and the text that you quoted, it can't work both ways. 
>> 
>> 
>> 
>>> On Oct 26, 2017, at 12:11 PM, Marlene Gutsch marlene.gutsch@yahoo.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>>> 
>>>  
>>> hi
>>> hope i understand the issue.
>>> 
>>> the A-110-4 can "normalizing".
>>> i use the cv-gate bus in all cases.
>>> i have two A-110-4, a A-110-2 and a A-143-4 on a A-185-2.
>>> e.g. when sending a sequence to this A-185-2, send the cv from front socket to a A-156 
>>> and back to the 1V/Oct front socket of the A-110-4's interrupts the bus CV from them.
>>> but sending the signal from the A-156 to the A-110-2 or the A-143-4 adds the bus cv to them.
>>> 
>>> from the A-110-4 short instruction:
>>> 
>>> important note: Please remove the bus jumper (JP3 "BUS CV") if no CV transmitter is installed on the same bus (e.g. a Midi/USB-to-CV interface A-190-x or a bus access module A-185-x). The A-110-4 applies a small voltage with high impedance (100k) to the CV line of the bus when the bus CV jumper is installed. This may affect other modules that pick-up CV from the bus (e.g. other VCOs). As soon as a CV transmitter is installed on the same bus the high impedance voltage of the A-110-4 is overwritten and no problem occurs !
>>> 
>>> Additional technical notes:
>>> 
>>> The control voltage applied to the socket 1V/Oct is added to the control voltage coming from the bus (interruptible by removing the jumper JP2). Connecting a cable to the socket 1V/Oct does not interrupt the bus CV connection !
>>> 
>>> please see the .pdf
>>> 
>>> ciao
>>> roland
>>> 
>>> 
>>> Von: "james.husted@mac.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
>>> An: Doepfer_a100@yahoogroups.com 
>>> Gesendet: 17:32 Mittwoch, 25.Oktober 2017
>>> Betreff: Re: [Doepfer_a100] Question regarding the CV bus
>>> 
>>>  
>>> I have to say the second method is nice when those times come up when adding CVs is what you want but really is not a good solution for when you don’t want to do that. It means you have to pull the module out to turn it OFF instead of the much simpler act of inserting a jack. I’m a firm user of the CV/Gate bus and almost every cabinet I have has a A-185 Bis Access module in it. I often mix buss use and non buss use in one cabinet and the normalizing really makes this easy. I can see where in the VCO modules that have only one CV input that this is much more useful, but would suggest that the VCOs that have two CV ins, that the normalized signal go to the 1v/oct input (with a jumper) and the variable CV input be made to have a 1v/oct response when the pot is turned fully CW. Then the mixing action could still happen.
>>> -James
>>> 
>>> > On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
>>> > 
>>> > There are two versions how a VCO may optionally access the bus:
>>> > 
>>> > Version 1. The CV coming from the bus is wired to the switching contact of
>>> > the socket at the front panel (provided that the corresponding jumper is
>>> > installed). In this case inserting a plug into the socket at the front panel
>>> > interrupts the bus CV.
>>> > 
>>> > Version 2. The CV coming from the bus is added to the CV applied to the
>>> > socket at the front panel (provided that the corresponding jumper is
>>> > installed). In this case both CVs are added.
>>> > 
>>> > In the beginning of the A-100 version 1 has been used for the A-110 (now
>>> > A-110-1). But many customers suggested that it would be a better solution to
>>> > add the two CVs. That way one could combine e.g. the CV coming from a
>>> > sequencer and a midi interface (e.g. for transpose) without the need of an
>>> > additional precision adder.
>>> > 
>>> > As far as I remember only A-110-1 uses version 1, all later VCOs use version
>>> > 2. If version 1 is preferred the module has to be modified by wiring the bus
>>> > CV to the switching contact of the CV socket at the front panel and removing
>>> > the bus CV jumper.
>>> > 
>>> > Best wishes
>>> > Dieter Doepfer
>>> > 
>>> > 
>>> > 
>>> >> Hi to you all,
>>> >> 
>>> >> for some reason I had it in my head that all of the A-100 VCOs
>>> >> had their 1v/o input jacks normalled to the CV bus (once the
>>> >> correct jumpers are set) but I have just discovered that this is
>>> >> not the case. My setup is as follows:
>>> >> 
>>> >> A-1852 Precision Adder
>>> >> 
>>> >> CV bus
>>> >> 
>>> >> A-111-1
>>> >> A-110-1
>>> >> A-110-4
>>> >> A-110-6
>>> >> 
>>> >> Having now re read the manuals, it appears only the A-110-1 has a
>>> >> normalled jack, so that by plugging into the 1 v/o you break the
>>> >> CV bus connection; the other VCOs keep getting a bus signal. Is
>>> >> there any way of normalling these other jacks so they behave in
>>> >> the same way? My wish is to be able to plug in a CV to the
>>> >> precision adder but then override that if I want to.
>>> >> 
>>> >> Regards,
>>> >> 
>>> >> Neil
>>> > 
>>> > 
>>> > 
>>> > ------------------------------------
>>> > Posted by: <yahoo@doepfer.de>
>>> > ------------------------------------
>>> > 
>>> > 
>>> > ------------------------------------
>>> > 
>>> > Yahoo Groups Links
>>> > 
>>> > 
>>> > 
>>> 
>>> 
>> 
>> 
>> 
> 
>

AW: [Doepfer_a100] Question regarding the CV bus

2017-10-27 by yahoo@doepfer.de

Hello Roland,

I took a look at the A-110-4 circuit and have to correct my last statement.
The bus CV concept of the A-110-4 is also version 1. I wrote that only
A-110-1 uses version 1. That was wrong, also A-110-4 uses version 1.

I have to agree that the bus CV concept of the several VCOs is not
consistent. It has to do with the fact that the different VCOs were designed
over a period of 20 years and that we tried to react to the customers
likings. For future designs (and redesigns of older modules) we plan to
install jumpers where the customer can choose the type bus normalling
(version 1 or 2). The same applies also to bus gate signals.

I should probably prepare a table that informs about the normalling version
of the different VCOs.

Best wishes
Dieter Doepfer

Show quoted textHide quoted text

> hi
> hope i understand the issue.
>
>
>
> the A-110-4 can "normalizing".
>
> i use the cv-gate bus in all cases.
>
> i have two A-110-4, a A-110-2 and a A-143-4 on a A-185-2.
> e.g. when sending a sequence to this A-185-2, send the cv from
> front socket to a A-156
>
> and back to the 1V/Oct front socket of the A-110-4's interrupts
> the bus CV from them.
> but sending the signal from the A-156 to the A-110-2 or the
> A-143-4 adds the bus cv to them.
>
>
> from the A-110-4 short instruction:
>
> important note: Please remove the bus jumper (JP3 "BUS CV") if no
> CV transmitter is installed on the same bus (e.g. a
> Midi/USB-to-CV interface A-190-x or a bus access module A-185-x).
> The A-110-4 applies a small voltage with high impedance (100k) to
> the CV line of the bus when the bus CV jumper is installed. This
> may affect other modules that pick-up CV from the bus (e.g. other
> VCOs). As soon as a CV transmitter is installed on the same bus
> the high impedance voltage of the A-110-4 is overwritten and no
> problem occurs !
>
>
> Additional technical notes:
>
>
> The control voltage applied to the socket 1V/Oct is added to the
> control voltage coming from the bus (interruptible by removing
> the jumper JP2). Connecting a cable to the socket 1V/Oct does not
> interrupt the bus CV connection !
>
>
> please see the .pdf
>
>
>
> ciao
> roland
>
>
>
>
>
>
> Von: "james.husted@mac.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
> An: Doepfer_a100@yahoogroups.com
> Gesendet: 17:32 Mittwoch, 25.Oktober 2017
> Betreff: Re: [Doepfer_a100] Question regarding the CV bus
>
>
>
>
> I have to say the second method is nice when those times come up
> when adding CVs is what you want but really is not a good
> solution for when you don’t want to do that. It means you have to
> pull the module out to turn it OFF instead of the much simpler
> act of inserting a jack. I’m a firm user of the CV/Gate bus and
> almost every cabinet I have has a A-185 Bis Access module in it.
> I often mix buss use and non buss use in one cabinet and the
> normalizing really makes this easy. I can see where in the VCO
> modules that have only one CV input that this is much more
> useful, but would suggest that the VCOs that have two CV ins,
> that the normalized signal go to the 1v/oct input (with a jumper)
> and the variable CV input be made to have a 1v/oct response when
> the pot is turned fully CW. Then the mixing action could still happen.
> -James
>
> > On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100]
> <Doepfer_a100@yahoogroups.com> wrote:
> >
> > There are two versions how a VCO may optionally access the bus:
> >
> > Version 1. The CV coming from the bus is wired to the switching
> contact of
> > the socket at the front panel (provided that the corresponding jumper is
> > installed). In this case inserting a plug into the socket at
> the front panel
> > interrupts the bus CV.
> >
> > Version 2. The CV coming from the bus is added to the CV applied to the
> > socket at the front panel (provided that the corresponding jumper is
> > installed). In this case both CVs are added.
> >
> > In the beginning of the A-100 version 1 has been used for the A-110 (now
> > A-110-1). But many customers suggested that it would be a
> better solution to
> > add the two CVs. That way one could combine e.g. the CV coming from a
> > sequencer and a midi interface (e.g. for transpose) without the
> need of an
> > additional precision adder.
> >
> > As far as I remember only A-110-1 uses version 1, all later
> VCOs use version
> > 2. If version 1 is preferred the module has to be modified by
> wiring the bus
> > CV to the switching contact of the CV socket at the front panel
> and removing
> > the bus CV jumper.
> >
> > Best wishes
> > Dieter Doepfer
> >
> >
> >
> >> Hi to you all,
> >>
> >> for some reason I had it in my head that all of the A-100 VCOs
> >> had their 1v/o input jacks normalled to the CV bus (once the
> >> correct jumpers are set) but I have just discovered that this is
> >> not the case. My setup is as follows:
> >>
> >> A-1852 Precision Adder
> >>
> >> CV bus
> >>
> >> A-111-1
> >> A-110-1
> >> A-110-4
> >> A-110-6
> >>
> >> Having now re read the manuals, it appears only the A-110-1 has a
> >> normalled jack, so that by plugging into the 1 v/o you break the
> >> CV bus connection; the other VCOs keep getting a bus signal. Is
> >> there any way of normalling these other jacks so they behave in
> >> the same way? My wish is to be able to plug in a CV to the
> >> precision adder but then override that if I want to.
> >>
> >> Regards,
> >>
> >> Neil
> >
> >
> >
> > ------------------------------------
> > Posted by: <yahoo@doepfer.de>
> > ------------------------------------
> >
> >
> > ------------------------------------
> >
> > Yahoo Groups Links
> >
> >
> >
>
>
>
>
>
>
>
>

Re: AW: [Doepfer_a100] Question regarding the CV bus

2017-10-27 by Marlene Gutsch

hello thank you very much for answer. 
i find that's a great idea, really appreciate !
ciaoroland


      Von: "yahoo@doepfer.de [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
 An: Doepfer_a100@yahoogroups.com 
 Gesendet: 11:17 Freitag, 27.Oktober 2017
 Betreff: AW: [Doepfer_a100] Question regarding the CV bus
   
Hello Roland,

I took a look at the A-110-4 circuit and have to correct my last statement.
The bus CV concept of the A-110-4 is also version 1. I wrote that only
A-110-1 uses version 1. That was wrong, also A-110-4 uses version 1.

I have to agree that the bus CV concept of the several VCOs is not
consistent. It has to do with the fact that the different VCOs were designed
over a period of 20 years and that we tried to react to the customers
likings. For future designs (and redesigns of older modules) we plan to
install jumpers where the customer can choose the type bus normalling
(version 1 or 2). The same applies also to bus gate signals.

I should probably prepare a table that informs about the normalling version
of the different VCOs.

Best wishes
Dieter Doepfer


> hi
> hope i understand the issue.
>
>
>
> the A-110-4 can "normalizing".
>
> i use the cv-gate bus in all cases.
>
> i have two A-110-4, a A-110-2 and a A-143-4 on a A-185-2.
> e.g. when sending a sequence to this A-185-2, send the cv from
> front socket to a A-156
>
> and back to the 1V/Oct front socket of the A-110-4's interrupts
> the bus CV from them.
> but sending the signal from the A-156 to the A-110-2 or the
> A-143-4 adds the bus cv to them.
>
>
> from the A-110-4 short instruction:
>
> important note: Please remove the bus jumper (JP3 "BUS CV") if no
> CV transmitter is installed on the same bus (e.g. a
> Midi/USB-to-CV interface A-190-x or a bus access module A-185-x).
> The A-110-4 applies a small voltage with high impedance (100k) to
> the CV line of the bus when the bus CV jumper is installed. This
> may affect other modules that pick-up CV from the bus (e.g. other
> VCOs). As soon as a CV transmitter is installed on the same bus
> the high impedance voltage of the A-110-4 is overwritten and no
> problem occurs !
>
>
> Additional technical notes:
>
>
> The control voltage applied to the socket 1V/Oct is added to the
> control voltage coming from the bus (interruptible by removing
> the jumper JP2). Connecting a cable to the socket 1V/Oct does not
> interrupt the bus CV connection !
>
>
> please see the .pdf
>
>
>
> ciao
> roland
>
>
>
>
>
>
> Von: "james.husted@mac.com [Doepfer_a100]" <Doepfer_a100@yahoogroups.com>
> An: Doepfer_a100@yahoogroups.com
> Gesendet: 17:32 Mittwoch, 25.Oktober 2017
> Betreff: Re: [Doepfer_a100] Question regarding the CV bus
>
>
>
>
> I have to say the second method is nice when those times come up
> when adding CVs is what you want but really is not a good
> solution for when you don’t want to do that. It means you have to
> pull the module out to turn it OFF instead of the much simpler
> act of inserting a jack. I’m a firm user of the CV/Gate bus and
> almost every cabinet I have has a A-185 Bis Access module in it.
> I often mix buss use and non buss use in one cabinet and the
> normalizing really makes this easy. I can see where in the VCO
> modules that have only one CV input that this is much more
> useful, but would suggest that the VCOs that have two CV ins,
> that the normalized signal go to the 1v/oct input (with a jumper)
> and the variable CV input be made to have a 1v/oct response when
> the pot is turned fully CW. Then the mixing action could still happen.
> -James
>
> > On Oct 25, 2017, at 4:16 AM, yahoo@doepfer.de [Doepfer_a100]
> <Doepfer_a100@yahoogroups.com> wrote:
> >
> > There are two versions how a VCO may optionally access the bus:
> >
> > Version 1. The CV coming from the bus is wired to the switching
> contact of
> > the socket at the front panel (provided that the corresponding jumper is
> > installed). In this case inserting a plug into the socket at
> the front panel
> > interrupts the bus CV.
> >
> > Version 2. The CV coming from the bus is added to the CV applied to the
> > socket at the front panel (provided that the corresponding jumper is
> > installed). In this case both CVs are added.
> >
> > In the beginning of the A-100 version 1 has been used for the A-110 (now
> > A-110-1). But many customers suggested that it would be a
> better solution to
> > add the two CVs. That way one could combine e.g. the CV coming from a
> > sequencer and a midi interface (e.g. for transpose) without the
> need of an
> > additional precision adder.
> >
> > As far as I remember only A-110-1 uses version 1, all later
> VCOs use version
> > 2. If version 1 is preferred the module has to be modified by
> wiring the bus
> > CV to the switching contact of the CV socket at the front panel
> and removing
> > the bus CV jumper.
> >
> > Best wishes
> > Dieter Doepfer
> >
> >
> >
> >> Hi to you all,
> >>
> >> for some reason I had it in my head that all of the A-100 VCOs
> >> had their 1v/o input jacks normalled to the CV bus (once the
> >> correct jumpers are set) but I have just discovered that this is
> >> not the case. My setup is as follows:
> >>
> >> A-1852 Precision Adder
> >>
> >> CV bus
> >>
> >> A-111-1
> >> A-110-1
> >> A-110-4
> >> A-110-6
> >>
> >> Having now re read the manuals, it appears only the A-110-1 has a
> >> normalled jack, so that by plugging into the 1 v/o you break the
> >> CV bus connection; the other VCOs keep getting a bus signal. Is
> >> there any way of normalling these other jacks so they behave in
> >> the same way? My wish is to be able to plug in a CV to the
> >> precision adder but then override that if I want to.
> >>
> >> Regards,
> >>
> >> Neil
> >
> >
> >
> > ------------------------------------
> > Posted by: <yahoo@doepfer.de>
> > ------------------------------------
> >
> >
> > ------------------------------------
> >
> > Yahoo Groups Links
> >
> >
> >
>
>
>
>
>
>
>
> 



------------------------------------

------------------------------------


------------------------------------

Yahoo Groups Links

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-27 by james.husted@mac.com

Dieter -  Please consider the option of making the variable CV in (on modules that have them) work so if the input attenuator is turned all the way up, that input tracks at 1v/Oct. This is a very convenient and useful alternative too. 
-James

Show quoted textHide quoted text

> On Oct 27, 2017, at 2:09 AM, yahoo@doepfer.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hello Roland,
> 
> I took a look at the A-110-4 circuit and have to correct my last statement.
> The bus CV concept of the A-110-4 is also version 1. I wrote that only
> A-110-1 uses version 1. That was wrong, also A-110-4 uses version 1.
> 
> I have to agree that the bus CV concept of the several VCOs is not
> consistent. It has to do with the fact that the different VCOs were designed
> over a period of 20 years and that we tried to react to the customers
> likings. For future designs (and redesigns of older modules) we plan to
> install jumpers where the customer can choose the type bus normalling
> (version 1 or 2). The same applies also to bus gate signals.
> 
> I should probably prepare a table that informs about the normalling version
> of the different VCOs.
> 
> Best wishes
> Dieter Doepfer
>

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-28 by Florian Anwander

Hello

On 27.10.17 20:25 , james.husted@mac.com [Doepfer_a100] wrote:
> Dieter -  Please consider the option of making the variable CV in (on modules that have them) work so if the input attenuator is turned all the way up, that input tracks at 1v/Oct. This is a very convenient and useful alternative too.
I am strictly against this request. You need a much higher modulation 
amount. Imagine an filtermodulation by the A-145, which would be limited 
to a +/- 2.5-Octave range: Assume, your cutoff is at 100Hz (which is 
around the second overtone for a low bass), then you would not be able 
to open the filter by the LFO more than to 320Hz!!!!

If I need 1V/Oct, then there is already a dedicated 1V/Oct-Input. If I 
need two of them for one module I will have an precision adder in front 
of the module

Florian

Re: [Doepfer_a100] Question regarding the CV bus

2017-10-28 by james.husted@mac.com

I think the problem there lies in the A-145 having only a +/-2.5 volt range. That is pretty low for a LFO, lower than the A-143-3, A-143-4 and most other companies LFOs. I understand your disagreement but one can say if you need a larger modulation range, use a A-183-3 or similar module. Maybe the compromise could be with an internal jumper for the range of the variable CV in. That would satisfy both purposes. 
-James

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> On Oct 28, 2017, at 3:35 AM, Florian Anwander fanwander@mnet-online.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
> 
> Hello
> 
> On 27.10.17 20:25 , james.husted@mac.com [Doepfer_a100] wrote:
>> Dieter -  Please consider the option of making the variable CV in (on modules that have them) work so if the input attenuator is turned all the way up, that input tracks at 1v/Oct. This is a very convenient and useful alternative too.
> I am strictly against this request. You need a much higher modulation 
> amount. Imagine an filtermodulation by the A-145, which would be limited 
> to a +/- 2.5-Octave range: Assume, your cutoff is at 100Hz (which is 
> around the second overtone for a low bass), then you would not be able 
> to open the filter by the LFO more than to 320Hz!!!!
> 
> If I need 1V/Oct, then there is already a dedicated 1V/Oct-Input. If I 
> need two of them for one module I will have an precision adder in front 
> of the module
> 
> Florian
> 
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