Doepfer

Hi!

Someone's asked me about hooking up a module with clock and run/stop out to the A-157.  My thinking is that as the A-157 doesn't have a run/stop in, you'd need to use something like the A-166 to logically AND together the clock and run/stop signals, then feed that into the A-157's clock input, press start on the A-157, then press start on the other module.

Does this sound right?  Is it possible to logically AND only two inputs with the A-166?  Will pressing start on the A-157 cause it to politely wait to get a clock signal, and then play the first row with the first pulse it gets?

Thanks!
Zoë.

Hello Zoe

What you need is a A-165, which creates separate triggers from the 
Start/Stop-gate.
You feed the Start/Stop-gate from your  device into the second half of 
the A-165.

You feed the output +/- into the input of both(!) AND gates of the A-166.
Feed the Start/Stop-gate into the first AND gate of the A-166.
Feed the inverted Start/Stop-gate from the second half of the A-165 into 
the second AND gate of the A-166.
Now the outs of the A-166 provide separate triggers for the Start and Stop.


That is what I implemented in my DIY DIN-Sync module
See
http://fa.utfs.org/diy/a100/sync2clock/index.html
and especially
http://fa.utfs.org/diy/a100/sync2clock/din2clock.png

IC1 represents the A-165
IC2 represents the A-166


Florian


Am 07.04.2016 um 17:52 schrieb Zoë Blade zoe@bytenoise.co.uk [Doepfer_a100]:

> Hi!
>
> Someone's asked me about hooking up a module with clock and run/stop out to the A-157.  My thinking is that as the A-157 doesn't have a run/stop in, you'd need to use something like the A-166 to logically AND together the clock and run/stop signals, then feed that into the A-157's clock input, press start on the A-157, then press start on the other module.
>
> Does this sound right?  Is it possible to logically AND only two inputs with the A-166?  Will pressing start on the A-157 cause it to politely wait to get a clock signal, and then play the first row with the first pulse it gets?
>
>

Wow, that's cunning but long winded...  So it'll get the going-up-or-down-pulse combined with the original run/stop signal being present for the going-up-only part of it, and without for the going-down-only part of it, which means you've got the start and stop of the run/stop signal feeding the A-157's start and stop signals.  That's very clever.  Thank you!

I don't suppose there's a solution that doesn't require buying an A-165 and A-166 and wiring up a complex patch? :)

Hello Zoe

 > I don't suppose there's a solution that doesn't require buying an 
A-165 and A-166 and wiring up a complex patch? :)
That is why I've built my module. If Dieter wants to, he may take it 
into his module range.

Florian

Thanks a lot Florian,

That is a clear picture of the patch. 
For me as a "Anfänger" there is a lot to learn and explore  

Greetz

Jacco

> Hello Zoe
>
>  > I don't suppose there's a solution that doesn't require buying an
> A-165 and A-166 and wiring up a complex patch? :)
> That is why I've built my module. If Dieter wants to, he may take it
> into his module range.
>
> Florian

As I'm about to add some more auxiliary modules that include the functions of existing dual modules (e.g. A-184-1 which includes 1/2
A-114, 1/2 A-148 and 1/2 A-170) I could add something like 1/2 A-165 and 1/2 A-166. What I also wanted to have is an RS flip-flop (a
digital circuit with a set and reset input, a trigger signal at the set input causes the output to turn high, a trigger signal at
the reset input causes the output to turn low). I often miss this function in my setup. Maybe I can include all functions in one
module. Most of the pcb area would be the probably required by the level shifters at the inputs and outputs :-)

Best wishes
Dieter Doepfer

That's a good idea. As already mentioned most of the pcb will be the level
shifter's/buffers at the in/outputs and the LED displays.
Dieter

  Hello Dieter,

  > I could add something like 1/2 A-165 and 1/2 A-166.
  I think instead of the  1/2 A-165, you might use the function that
provides Start-Trigger and Stop-Trigger on separate sockets. Both the
A-154/A-155 and the A-157 are based on these separated triggers.
  On the other hand no patch comes to my mind, where I use the on-trigger
and off-trigger on the same line. I always have to split them up like
described.

  > What I also wanted to have is an RS flip-flop (a digital circuit > with
a set and reset input, a trigger signal at the set input causes > the output
to turn high, a trigger signal at the reset input causes > the output to
turn low). I often miss this function in my setup.
  What about a D-type flip-flop with switching sockets in front of the R and
S inputs?

  like this (leaving away buffering/leveling circuitry):


  Florian





  


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

> As I'm about to add some more auxiliary modules that include the functions of existing dual modules (e.g. A-184-1 which includes 1/2
> A-114, 1/2 A-148 and 1/2 A-170) I could add something like 1/2 A-165 and 1/2 A-166. What I also wanted to have is an RS flip-flop (a
> digital circuit with a set and reset input, a trigger signal at the set input causes the output to turn high, a trigger signal at
> the reset input causes the output to turn low). I often miss this function in my setup. Maybe I can include all functions in one
> module. Most of the pcb area would be the probably required by the level shifters at the inputs and outputs :-)

For what it's worth, I think DIN sync style run/stop signals are pretty standard (even the MCV-24 outputs it), so any module that can convert those into what the A-157 needs would help out people trying to sync it up to other hardware, modular or not.

Thanks,
Zoë.

> Hi,
>
> I'd like to replace some of the knobs on my system with the new, smaller style found on the A-139-2 and others. I cant
> seem to find a source for them and looks like Doepfer isn't selling them as spares. Could Dieter or anyone else help with
> the brand/part number and a source for these?
>
> Thanks!

The knobs are available as spare parts from the representative in your country (or from us directly if you want to order from
Germany). They are also listed in the price list on our website (spare parts section):

Knob, black with white line, diameter 11 mm, height 13 mm, for 6 mm axis with 18 teeth
(spare part for A-139-2, A-189-1, A-190-2, A-190-3 ...)


Best wishes
Dieter Doepfer