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16 step seq

16 step seq

2011-11-28 by aletropdj

hi there.

Its possible turn a a-155 into a 16 step seq with only one a-155?
Like tone up or down one octave (or some keys) at the 8th step automatically. 

There is some module to do that?

cheers

Re: [Doepfer_a100] 16 step seq

2011-11-29 by Florian Anwander

Hello,

it is not possible to achieve this with "official" means.

If you are skilled in electronics you might modify the A155, to get a 16 
step mode.

It requires the following changes:
Pick Q4 from IC2 (CD4024) pin6 on the controller board

Add a pcb with a small logic inverter stage (one transistor, two 
resistors), which provides this signal Q4 also inverted (I'll call the 
inverted signal !Q4)

The Q4/!Q4-Signals will be used to control the INH-input of the CD4051's 
on the potentiometer boards and the CD4053's on the trigger board
!Q4 selects for the steps 1-8 and Q4 the steps 9-16.

If you want to have it switchable, then you need two additional 4053's 
which select the INH-lines between ground or Q4/!Q4.

Florian




aletropdj wrote:
Show quoted textHide quoted text
> hi there.
>
> Its possible turn a a-155 into a 16 step seq with only one a-155?
> Like tone up or down one octave (or some keys) at the 8th step automatically.
>
> There is some module to do that?
>
> cheers
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>

Re: 16 step seq

2011-11-29 by aletropdj

Using the second row of knobs i can make a 16 step seq, but i have to put the jack in and out "a la mano". im looking for a automatic solution






--- In Doepfer_a100@yahoogroups.com, "aletropdj" <aletropdj@...> wrote:
Show quoted textHide quoted text
>
> hi there.
> 
> Its possible turn a a-155 into a 16 step seq with only one a-155?
> Like tone up or down one octave (or some keys) at the 8th step automatically. 
> 
> There is some module to do that?
> 
> cheers
>

AW: [Doepfer_a100] Re: 16 step seq

2011-11-29 by yahoo@doepfer.de

> Using the second row of knobs i can make a 16 step seq, but i
> have to put the jack in and out "a la mano". im looking for a
> automatic solution

For thhis you may use a VC switch (A-150) which is controlled by a clock
divider (A-160). As clock input of the A-160 one of the trigger rows of the
A-155 may be used (only step 1 active). Then you have to use the /2 output
to control the A-150. But you may even use the same clock as the A-155
clock. Then the /8 output of the A-160 is used to control the A-150. This
solution has the advantage that unit #2 of the A-150 can be used to switch
even the trigger rows of the A-155.

Hope this helps
Dieter Doepfer

Re: 16 step seq

2011-11-29 by aletropdj

For example this sequence up and down variation is produced with A-150 and a-160?

http://www.youtube.com/watch?v=ZBTsEwNRxe8




--- In Doepfer_a100@yahoogroups.com, <yahoo@...> wrote:
Show quoted textHide quoted text
>
> > Using the second row of knobs i can make a 16 step seq, but i
> > have to put the jack in and out "a la mano". im looking for a
> > automatic solution
> 
> For thhis you may use a VC switch (A-150) which is controlled by a clock
> divider (A-160). As clock input of the A-160 one of the trigger rows of the
> A-155 may be used (only step 1 active). Then you have to use the /2 output
> to control the A-150. But you may even use the same clock as the A-155
> clock. Then the /8 output of the A-160 is used to control the A-150. This
> solution has the advantage that unit #2 of the A-150 can be used to switch
> even the trigger rows of the A-155.
> 
> Hope this helps
> Dieter Doepfer
>

Re: [Doepfer_a100] Re: 16 step seq

2011-11-30 by Lars Bröndum

You can use a a-160 and a a-150 to get 16 steps.

From the manual:
The patch in fig. 6 shows how to use the A-155 as a 16-step sequencer with one single analog CV row. What’s needed are the Clock Divider A-160 (output /8) and the two voltage-controlled swit- ches in the A-150 VCS module.
With every eight clock pulses, the A-150 switches between the two trigger and analog CV rows, so that there’s now a 16-step trigger and CV sequence avai- lable at the outputs of the A-150. 

Good luck!

/Lars Bröndum

On 29 nov 2011, at 14:29, "aletropdj" <aletropdj@yahoo.com> wrote:

> Using the second row of knobs i can make a 16 step seq, but i have to put the jack in and out "a la mano". im looking for a automatic solution
> 
> --- In Doepfer_a100@yahoogroups.com, "aletropdj" <aletropdj@...> wrote:o 
> >
> > hi there.
> > 
> > Its possible turn a a-155 into a 16 step seq with only one a-155?
> > Like tone up or down one octave (or some keys) at the 8th step automatically. 
> > 
> > There is some module to do that?
> > 
> > cheers
> >
> 
> 


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

Re: 16 step seq

2011-11-30 by aletropdj

I need 2 a-150? but a-150 its dual.
how i can control de voltage to make this tone up or down? its fixed like 1v/oct or i can adjust?

Thanks all.






--- In Doepfer_a100@yahoogroups.com, Lars Bröndum <lahebr2000@...> wrote:
Show quoted textHide quoted text
>
> You can use a a-160 and a a-150 to get 16 steps.
> 
> From the manual:
> The patch in fig. 6 shows how to use the A-155 as a 16-step sequencer with one single analog CV row. What’s needed are the Clock Divider A-160 (output /8) and the two voltage-controlled swit- ches in the A-150 VCS module.
> With every eight clock pulses, the A-150 switches between the two trigger and analog CV rows, so that there’s now a 16-step trigger and CV sequence avai- lable at the outputs of the A-150. 
> 
> Good luck!
> 
> /Lars Bröndum
> 
> On 29 nov 2011, at 14:29, "aletropdj" <aletropdj@...> wrote:
> 
> > Using the second row of knobs i can make a 16 step seq, but i have to put the jack in and out "a la mano". im looking for a automatic solution
> > 
> > --- In Doepfer_a100@yahoogroups.com, "aletropdj" <aletropdj@> wrote:o 
> > >
> > > hi there.
> > > 
> > > Its possible turn a a-155 into a 16 step seq with only one a-155?
> > > Like tone up or down one octave (or some keys) at the 8th step automatically. 
> > > 
> > > There is some module to do that?
> > > 
> > > cheers
> > >
> > 
> > 
> 
> 
> [Non-text portions of this message have been removed]
>

Re: 16 step seq

2011-12-02 by aletropdj

anyone?





--- In Doepfer_a100@yahoogroups.com, "aletropdj" <aletropdj@...> wrote:
Show quoted textHide quoted text
>
> 
> 
> I need 2 a-150? but a-150 its dual.
> how i can control de voltage to make this tone up or down? its fixed like 1v/oct or i can adjust?
> 
> Thanks all.
> 
> 
> 
> 
> 
> 
> --- In Doepfer_a100@yahoogroups.com, Lars Bröndum <lahebr2000@> wrote:
> >
> > You can use a a-160 and a a-150 to get 16 steps.
> > 
> > From the manual:
> > The patch in fig. 6 shows how to use the A-155 as a 16-step sequencer with one single analog CV row. What’s needed are the Clock Divider A-160 (output /8) and the two voltage-controlled swit- ches in the A-150 VCS module.
> > With every eight clock pulses, the A-150 switches between the two trigger and analog CV rows, so that there’s now a 16-step trigger and CV sequence avai- lable at the outputs of the A-150. 
> > 
> > Good luck!
> > 
> > /Lars Bröndum
> > 
> > On 29 nov 2011, at 14:29, "aletropdj" <aletropdj@> wrote:
> > 
> > > Using the second row of knobs i can make a 16 step seq, but i have to put the jack in and out "a la mano". im looking for a automatic solution
> > > 
> > > --- In Doepfer_a100@yahoogroups.com, "aletropdj" <aletropdj@> wrote:o 
> > > >
> > > > hi there.
> > > > 
> > > > Its possible turn a a-155 into a 16 step seq with only one a-155?
> > > > Like tone up or down one octave (or some keys) at the 8th step automatically. 
> > > > 
> > > > There is some module to do that?
> > > > 
> > > > cheers
> > > >
> > > 
> > > 
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
>

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