On Thu, Feb 7, 2013 at 6:07 PM James Husted < james.husted@... > wrote:

Let me try it out first. It is very simple. It will be based on a variation of this circuit fragment - https://www.dropbox.com/s/d4zuu4p62nvwccn/driver.jpg
I may have to add some stuff to extend the pulse a bit, to make it longer than it is. I will see how it works first.
-James



On Feb 6, 2013, at 3:59 AM, charles kerr < thebadproducer@... > wrote:

> Hi James,
>
> I'd be interested to see your expansion circuit if possible, sounds like a cool addition to the 152! Would it be possible to email it to me or drop it into the file box
>
> Thanks,
>
> Charlie
>
>
>
> --- On Mon, 4/2/13, James Husted < james.husted@... > wrote:
>
> From: James Husted < james.husted@... >
> Subject: Re: 1 Can I mod a A-152 to do this
> To: Doepfer_a100@yahoogroups.com
> Date: Monday, 4 February, 2013, 18:26
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> 
>
>
>
>
>
>
>
>
>
>      Forgot - no attachments in this forum! basically The thing I attached was a transistor circuit (2N5088) and some resistors and a LED to drive the output jack. It should isolate the processor fine. I will attach it to the expansion header so no mods to the board itself. That is why I asked about what else is on that header. Might as well bring out whatever I can since I will be making a panel for it.
>
> -James
>
>
>
> On Feb 4, 2013, at 10:21 AM, James Husted james.husted@... > wrote:
>
>
>
>> Thank You Dieter! I  was sure that something like this was available. I will probably make something like this to attach to it:
>
>>
>
>>
>
>>
>
>> Nice that it is on an expansion connector too. What else shows up on that expansion connector
>
>> -James
>
>>
>
>>
>
>> On Feb 4, 2013, at 1:26 AM, yahoo@... wrote:
>
>>
>
>>>
>
>>>> -----Ursprungliche Nachricht-----
>
>>>> Von: Doepfer_a100@yahoogroups.com
>
>>>> [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von James Husted
>
>>>> Gesendet: Samstag, 2. Februar 2013 08:41
>
>>>> An: Doepfer_a100@yahoogroups.com
>
>>>> Betreff: 1 Can I mod a A-152 to do this
>
>>>>
>
>>>>
>
>>>> I recently got an A-152 and am using it to select the columns of
>
>>>> two of my PGM-4X4 programmers to make sequences that can have
>
>>>> programmable patterns to them. What I would like is to mod the
>
>>>> A-152 so that I can add an output that produces a trigger
>
>>>> whenever the A-152 addresses a new step. This way something like
>
>>>> a sine wave into the A-152 would make the PGM-4X4 work like a
>
>>>> pendulum and would also produce triggers to fire off envelope
>
>>>> generators whenever a new address/column/note happened. Is there
>
>>>> some internal circuit logic that can be added to create a trigger
>
>>>> out like this
>
>>>
>
>>> This is also available as an internal "hidden" feature since  about 2005.
>
>>> The RC4 port pin of the microcontroller (pin 6) outputs a short pulse
>
>>> whenever the address changes. The signal is also available at the expansion
>
>>> connector on pin 2. Pay attention that the signal is not buffered and not
>
>>> protected against short or electrostatic charge (it's the "pure" RC4 port
>
>>> signal). The microprocessor will be damaged if a voltage or GND is applied
>
>>> to this pin. You have to add a suitable buffer to protect the processor. Do
>
>>> not simply connect it to a socket !
>
>>>
>
>>> Best wishes
>
>>> Dieter Doepfer
>
>>>
>
>>>
>
>>>
>
>>> ------------------------------------
>
>>>
>
>>> Yahoo! Groups Links
>
>>>
>
>>>
>
>>>
>
>>
>
>>
>
>>
>
>> [Non-text portions of this message have been removed]
>
>>
>
>>
>
>>
>
>> ------------------------------------
>
>>
>
>> Yahoo! Groups Links
>
>>
>
>>
>
>>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>



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

Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/Doepfer_a100/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/Doepfer_a100/join
    (Yahoo! ID required)

<*> To change settings via email:
    Doepfer_a100-digest@yahoogroups.com
    Doepfer_a100-fullfeatured@yahoogroups.com

<*> To unsubscribe from this group, send an email to:
    Doepfer_a100-unsubscribe@yahoogroups.com

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/

--

Allt gott / Best wishes,
Mikael Altemark