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RE: [Doepfer_a100] Adding CV to A-145 LFO

RE: [Doepfer_a100] Adding CV to A-145 LFO

2001-08-02 by Rhen, Kris

Actually in theory, any analog circuit which has a pot can be changed to CV
control.  All a pot is is a voltage divider, so applying the proper voltave
across the divider has the same effect.  I'm considering lots of mods to my
A100 in this regard.  Now if I can only find the time :-)
KRIS

> -----Original Message-----
> Hi Ethan
> 
> > I'm considering drilling a hole across from the "reset in" an an A-
> > 145 LFO to add CV to the Freq.  Does anyone know if adding CV to the
> > A-145 LFO is feasible?
>
> I do not have the A-100 schematics here in the office, but 
> the standard LFO
> circuit used in most of analogue synths (which is used also 
> in the A145 - as far
> as I remember) does not allow this.


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Re: Adding CV to A-145 LFO

2001-08-02 by ethanzer0@yahoo.com

--- In Doepfer_a100@y..., "Rhen, Kris" <krhen@s...> wrote:
> Actually in theory, any analog circuit which has a pot can be 
> changed to CV control.  All a pot is is a voltage divider, so 
> applying the proper voltave across the divider has the same 
> effect.  I'm considering lots of mods to my

Do you know if the voltage that passes through the pot is the same as 
the output of the A-145 LFO?  Would I have to convert the the input 
to the proper voltage, or could I just wire a jack in place of the 
pot? or even use the pot as a CV attenuator...

Thanks,

Ethan

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