Alesis Andromeda A6

i wondered if a resistor parallel to the trimming pot with a lower 
value would do the trick. otherwise it seems a new pot is the only 
other choice, or isn't it ?

On Nov 30, 2007, at 4:07 PM, charles graef wrote:

> Don’t forget that the voltage, and the resistance and lin./log.-ness 
> of the pot won’t be influenced by the type of plug, and it’s these 
> things that aren’t within a useful calibration.
>
>  
>
> The problem with the pedal is that insofar as the A6 is concerned all 
> the voltage attenuation action is concentrated into one end of the 
> range of the pedal movement.  I believe it would work fine with a 
> different pot.
>
>  
>
> --Chuck
>
>  
>
>
> From: Andromeda_A6-ION@yahoogroups.com 
> [mailto:Andromeda_A6-ION@yahoogroups.com] On Behalf Of Eduardo 
> Saponara
> Sent: Friday, November 30, 2007 9:08 AM
> To: andromeda_a6-ion@yahoogroups.com
> Subject: RE: [Andromeda_A6-ION] Digest Number 470
>
>  
>
> Hi Charles,
>   
>  Well, the Andromeda Manual states that the EXP input is expecting a 
> mono plug, (see for yourself, I'd be curious to know if this was an 
> error) and then TRS exp. pedals don't seem to work.  I understand the 
> voltage divider process by which the TRS pedals work, but this can be 
> accomplished with 2 conductors as well, using the ground and tip as 
> the wiper and ground of a pot, for instance.  Are you using a trs exp. 
> pedal successfully?  Maybe the F2 has a way of telling what the synth 
> expects?  Mine doesn't work unless the insert cable is used taking the 
> ring connection out.
>   
>  I also tried inverting the response of the pedal and still got no joy 
> with the TRS connector Exp. Pedals.  Can you confirm that you are 
> using an exp. pedal with trs connectors?
>   
>  I'll try a trs cable with my FV-500 and see if I can get it to work.
>   
>  So the F2 uses the same jacks for volume pedal and exp. pedal 
> functions?
>   
> Russ:
>  
>  The moog pedal seems to have an integrated cable, and since it seems 
> to be a CV pedal there is a chance it provides the voltage, being 
> designed for use with moogerfoogers.  be sure before you order, an 
> extra $15 isn't too much for the right thing.
>   
>  BTW, I have a friend looking for an Andromeda in the NYC area with no 
> tuning issues and in good shape, if anyone knows of one please forward 
> the info to me.
>   
>  Eduardo
>
>   
>  -----------------------------------------------------
>
> Posted by: "charles graef" vogelscheiss@...   modularcharles
>
> Thu Nov 29, 2007 8:12 am (PST)
>
> The A6 expression pedal jack is TRS, as is the F2 input. The voltage 
> being
>  attenuated through the pot in the F2 comes from the A6 and returns to 
> it via
>  the same plug.
>
>  The selector switch on the F2 is for choosing its operational mode, 
> either
>  using a TRS cable, as you would with the A6 expression jack, or as a 
> volume
>  pedal inline between the output of something and an amp.
>
>  There's no such thing as a mono exp. pedal input, per se. You'd need 
> to
>  have a voltage source. You can use an expression pedal in a modular 
> by, for
>  instance, taking a voltage source like the Doepfer A176 and running it
>  through the pedal in volume pedal mode and into a CV in elsewhere on 
> the
>  modular.
>
>  FWIW the scaling of the F2 works fine with my CME UF8 MIDI controller
>  keyboard. Why Alesis doesn't subscribe the A6 to the same standards 
> that
>  other expression inputs use is an open question.
>
>  --Chuck
>
>  
>
>
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>  
>