thanks for the response. I don't think it's a matter of clipping.
I'm sending a 4 volt saw wave to sub osc. channel A. I have 1, /2, /
4, & /8, turned all the way up and I'm getting an output of .25 volts.
It has the same ratio on channel B as well.
I've switched out the op amps with no change.
-pete
I'm sending a 4 volt saw wave to sub osc. channel A. I have 1, /2, /
4, & /8, turned all the way up and I'm getting an output of .25 volts.
It has the same ratio on channel B as well.
I've switched out the op amps with no change.
-pete
On Feb 14, 2009, at 5:21 PM, otherunicorn@... wrote:
> You would be better increasing the 22k on the previous stage to 47k
> to add
> more gain. Don't forget that when you mix a lot of signals
> together, the
> output will clip as the sum of the signals will now be greater than
> the
> available voltage.
>
> >just built the sub osc. great module. there seems to be something
> >like a 50+% volume drop from pre to post sub osc. Am I missing
> >something?
> >why is this? it looks like the first amp stage increases the volume
> >of each input considerably.. . . should I just change the value the
> >last 47K resistor in the final inverting amp to amplify the signal?
> >Thanks!!!!!!
> >-pete
> >
> >
> >
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> something <br>
> >like a 50+% volume drop from pre to post sub osc. Am I missing <br>
> >something?<br>
> >why is this? it looks like the first amp stage increases the
> volume <br>
> >of each input considerably.<wbr>. . . should I just change the
> value the <br>
> >last 47K resistor in the final inverting amp to amplify the signal?
> <br>
> >Thanks!!!!!!<br>
> >-pete<br>
> ><br>
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> __________________________________________________________
> Ken Stone sasami@... otherunicorn@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/
> ~sasami/>
>
>
>
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