[sdiy] Which opamp pins wiring is best for CV out ?? A or B ??

[Tom Bugs]

I think it is a non-inverting opamp buffer
- signal into non-inverting input
- there is a resitor from the output pin (100r ? 1k)
The question seems to be (and I've wondered this too) - does the 
feedback to the inverting input come before or after the output resitor
- I've always used the 'pre' method (a) but have seen the 'post' method (b)
Puzzled me too.

Colin f wrote:
>  
>   
>> Sorry, but I can't make out what your drawing is supposed to 
>> represent.
>> Could you perhaps just describe it in words?
>>     
>
> Here's my guess...
> The first one is a wizard sitting on the ground, with his knees pulled to
> his chest, playing a tin whistle with a CV out.
> In the second, he has stretched out his legs, and drool is coming out the
> end of his whistle.
> I think the one without the drool will be the best option.
>
> Cheers,
> Colin f
>
>  
>
>   
>>> -----Original Message-----
>>> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
>>> bounces at dropmix.xs4all.nl] On Behalf Of jpdesroc at oricom.ca
>>> Sent: Thursday, February 26, 2009 12:24 PM
>>> To: Synth-diy at dropmix.xs4all.nl
>>> Subject: [sdiy] Which opamp pins wiring is best for CV out 
>>>       
>> ?? A or B ??
>>     
>>> Sorry for the bad drawing... no HTML so.
>>>
>>>     A:
>>>
>>>
>>> 	|   \
>>> 	|    \
>>> 	|     \
>>> 	|      \
>>> 	|       \
>>> 	|   |    \
>>> ----------------|  ---    \
>>> 	|    |       \_____/\/\/\____ CV OUT
>>> 	|            /  |
>>> 	|           /   |
>>> 	|          /    |
>>>     -------------|  ---  /     |
>>>     |	|       /      |
>>>     |	|      /       |
>>>     |	|     /        |
>>>     |	|    /         |
>>>     |	|   /          |
>>>     |                |              |
>>>     |------------------------
>>>
>>>
>>>     B:
>>>
>>>
>>> 	|    \
>>> 	|     \
>>> 	|      \
>>> 	|       \
>>> 	|        \
>>> 	|    |    \
>>> ----------------|   ---    \
>>> 	|     |       \____/\/\/\/\______ CV OUT
>>> 	|            /                   |
>>> 	|           /                    |
>>> 	|          /                     |
>>>     -------------|  ---  /                      |
>>>     |	|       /                       |
>>>     |	|      /                        |
>>>     |	|     /                         |
>>>     |	|    /                          |
>>>     |	|   /                           |
>>>     |                                                 |
>>>     |-------------------------------------
>>>
>>>
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