DIY Electronics Question #2 - CV Amplifier

[Paul Maddox]

Paul,

the opamp is your friend :)

If you decrease R1 and R4 that will "amplify" the incoming signal.
Can I just check, what supply voltages exist inside the 800dv?

the tl074/072 will only work with upto +18 and -18, go above that and
it could destroy the chip.

Paul

On 7 March 2013 20:45, punkdISCO <forums at punkdisco.co.uk> wrote:
> Not wanting to take advantage of people’s good nature’s but, this one is
> hopefully just a yes/no plus a pointer to a standard circuit..
>
>
>
> Problem:  Korg 800dv filter CV requires 20v for full range.  My little Pro
> Solo does 12v which seems to be about the highest amount any controller can
> do.  Most devices only output 5v.
>
>
>
> Question: is there a really simple circuit I could make and install
> internally to amplify, say, 5v x4 (or maybe a x2 amp for 10v operation)?
>
>
>
> I have googled amplifiers but as you would imagine, they tend to be way more
> then what I am looking for..
>
>
>
> Thanks,
>
>
>
> Paul
>
> London
>
> www.punkdisco.co.uk
>
>
>
>
>
>
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