[sdiy] Looking for schematics

[Heitor Alves]

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
----- Original Message ----- 
From: <harrybissell at wowway.com>
To: "Heitor Alves" <theatomlabspt at gmail.com>; "Synth DIY List" 
<synth-diy at dropmix.xs4all.nl>
Sent: Saturday, January 17, 2009 5:58 PM
Subject: Re: [sdiy] Looking for schematics


> Hi Heitor
>
> if it is truly a transistor or diode ladder, copy the
> buffer circuit from the top of the ladder and add it
> at the second cap up from the bottom. DO NOT move the resonance
> circuit. Select A or B with a switch. If it is an IC
> based filter, it should be easy to tap the second stage...
>
> H^) harry
>
>
>
> If it is a laOn Sat, 17 Jan 2009 16:41:43 -0000, Heitor Alves wrote
>> Hi All!
>>
>> I'm looking for service manual or schematics of a DeepBass Nine (DB9)
>> . I cant find any online, and infos about it are almost none. I know
>> that it was built in the UK, very few were built in fact. My goal is
>> to transform the 24dB filter in to 12dB filter, kinda of mod it to
>> be able to select the filter kind. Is it possible? I believe this
>> synth is another clone of the TB303, but without the manual i wont
>> risk it ;o)
>>
>> thanks in advance
>>
>> Heitor
>>
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>
>
> Harry Bissell & Nora Abdullah 4eva
>