[sdiy] Looking for schematics

[harrybissell at wowway.com]

Hi Heitor

If you can post photos of the whole pcb I might be able to trace out the
filter from that...

H^) harry


On Thu, 22 Jan 2009 00:17:15 -0000, Heitor Alves wrote
> Hi friends :o)
> 
> I've only got back today, from work...4 days in a row...
> 
> The db uses a CEM 3340 wich i believe only makes the VCO.
> 
> Regards :o)
>   ----- Original Message ----- 
>   From: harrybissell at wowway.com
>   To: Dan Norris ; theatomlabspt at gmail.com ; synth-diy at dropmix.xs4all.nl
>   Sent: Sunday, January 18, 2009 6:08 PM
>   Subject: RE: [sdiy] Looking for schematics
> 
>   Looking at the photo I don't think the filter is there. If it does 
> use the Curtis  chips (CEM3320 ?) I can show how I did the 12db mod.
> 
>   H^) harry
> 
>   On Sun, 18 Jan 2009 02:25:08 -0800, Dan Norris wrote
>   > >
>   > > Hi Harry, and list
>   > >
>   > > I've uploaded a photo of the mainboard (analog circuit) and 
> there are 2  > > possible places to be the diode/transistor 
> ladder... but without the  > > schematics i'm affraid of mess 
> something... i'll keep on trying to find it,  > > if i cant find it 
> i'll leave the idea alone ;o)  > >  > > photo: www.atomlabs.biz/DSCN2497.JPG
>   > >
>   > > thanks for the help anyway, i've already made a .txt with harry's
>   > > explanation on the mod :o)
>   > >
>   > > regards
>   > >
>   > > Heitor
>   >
>   > A couple reviews on Sonicstate mention that this unit uses 
> Curtis chips for the oscillator and filter. Are they incorrect?  >
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>   Harry Bissell & Nora Abdullah 4eva
> 
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Harry Bissell & Nora Abdullah 4eva