MOTM

On Saturday 17 December 2005 22:26, David Holt wrote:
> I just finished building my second module (if you count
> the 950).  It was a 190 uVCA.  Here's the problem- since
> I've only got the two modules, I don't have any way to
> test my work and see how I did.  Are any of you MOTMers
> in the Dallas / Fort Worth area and willing to help a
> newbie out?  Alternately, does anyone have any clever
> tips for testing without any other modules?

Well, you could feed the '190 some audio from an external 
source (a synth, some recorded music) and first see if the 
pots work as described. 

If these work, maybe you can test the L/E switch of the 
bottom half VCA as well. See if the pot behaves as it 
should.

And if you have two external audio sources you could try the 
ringmod feature as well.

I admit, tough setup to do a nice test. ;)

- Robert

On Saturday 17 December 2005 23:56, Robert van der Kamp 
wrote:

> If these work, maybe you can test the L/E switch of the
> bottom half VCA as well. See if the pot behaves as it
> should.

Hmm, I now think the L/E switch doesn't affect the behavior 
of the pot, so that would be hard to test then.

- Robert

Yes it does.  The initial gain pot on VCA 'B' mixes with the VC input.  
So it is affected by the Linear/Exponential switch too.

-Richard Brewster

Robert van der Kamp wrote:

>On Saturday 17 December 2005 23:56, Robert van der Kamp 
>wrote:
>
>  
>
>>If these work, maybe you can test the L/E switch of the
>>bottom half VCA as well. See if the pot behaves as it
>>should.
>>    
>>
>
>Hmm, I now think the L/E switch doesn't affect the behavior 
>of the pot, so that would be hard to test then.
>
>- Robert
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>
>
>  
>

On Sat, 2005-12-17 at 13:26 -0800, David Holt wrote:
> I just finished building my second module (if you count the 950).  It
> was a 190 uVCA.  Here's the problem- since I've only got the two
> modules, I don't have any way to test my work and see how I did.  Are
> any of you MOTMers in the Dallas / Fort Worth area and willing to help
> a newbie out?  Alternately, does anyone have any clever tips for
> testing without any other modules?

Although I have little real understanding of what I'm doing, I just
started building too -- up to module #5 or 6.  I have a PAiA 9700, so I
can generate CVs to test the 190 with.  Were I you, I'd build an LFO
next, this will provide you with a CV that doesn't require any external
gate/trigger/etc..  Then you can listen to the output of your iPod as if
a perfect-sinewave-monkey was playing with the volume control.

(jfm3)