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Re: Ring mod won't ring!

2008-11-15 by casperelectronics

Thanks Scott and Ken,
The problem was in the trim adjustments.
Is there anywhere I can read about how to properly set all four pots?
I'm still getting the littlest bit of input bleed through at the
output even with fine tuning of the null trim. Is this to be expected?
Thanks for the help!!

On Nov 14, 2008, at 10:44 PM, Scott Deyo wrote:

> How did you wire the inputs?
> The 1U non-polar cap buffers the Triangle input into the Modulator In.
> In my modules, I don't use the Mod In pad on the PCB. Check around
> there to see if anything's funky.
> Try the trimpots, too, to make sure the output levels are high enough
> and the inputs are trimmed out.
>
> Scott Deyo
> The Bridechamber
> contact@...
> http://www.bridechamber.com
> Jealous Edison Record Kompany
> http://www.jealousedison.com
>
> On Nov 14, 2008, at 4:53 PM, sasami@... wrote:
>
> > obviously something isn't right. First, make sure all your diodes
> are
> > facing
> > the correct way. It's probably some simple construction error.
> >
> > Ken
> >
> > >I just built the cgs/bridechamber Wave Multipliers With Real Ring
> > >Modulator kit. I'm very happy with the module except that the ring
> > >modulator isn't ringing, it's just mixing.
> > >There's not a whole lot to it so I'm not sure what could be wrong.
> > >Anyone have the same issue? Is this thing really finicky? Are there
> > >wave forms that DON'T work together? Do I need to adjust the
> signals?
> > >I put 2uF non polarized caps in series with both inputs and was
> able
> > >to get some ringing from two saw waves but other signals (square
> and
> > >mixed) weren't ringing.
> > >I've been running it side by side with a "fake" ring mod based
> on the
> > >AD633 Analog Multiplier IC. The AD633 can take anything and is
> giving
> > >consistent ringing but it's pretty thin sounding. I'm hoping to get
> > >similar performance from the "real" ring mod, but with a warmer
> > sound.
> > >
> > >
> > >------------------------------------
> > >
> > >The CGS Modular Synth home page: http://www.cgs.synth.net/
> > >Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > __________________________________________________________
> > Ken Stone sasami@... otherunicorn@...
> > Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> > Australian Miniature Horses & Ponies
> > <http://www.blaze.net.au/~sasami/>
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
>
>



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