DIY Electronics Question #2 - CV Amplifier

[Paul Maddox]

Paul,

yes the circuit will amplify too (powerful things opamps), however the
TL072/074 will need +/-18V... so you might have to switch the LM741,
which means 4 chips (it's a single opamp) but it should handle +/-20v.
the 800dv already has an LM741 in there (I found the schematics on the
same page).

Paul

On 8 March 2013 20:56, punkdISCO <forums at punkdisco.co.uk> wrote:
> Hey PaulM
>
>> 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?
>
> +20v
>
>> the tl074/072 will only work with upto +18 and -18, go above that and it
> could
>> destroy the chip.
>
> Are you saying the circuit you have given me will also amplify??  If so,
> that is super sexy..!!
>
> http://www.cykong.com/Synths/Korg%20800DV/Images/Korg-800DV-Schematics-Colou
> red.gif
>
> Looks like I might need to pop to Maplin this weekend!
>
> Ta,
>
> London
> www.punkdisco.co.uk
>
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