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Cgs synth

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Message

Re: Problems with Synthacon VCF

2006-03-02 by sasami@hotkey.net.au

Circuit may vary from current version, but this should help:

http://www.cgs.synth.net/modules/pic/schem_cgs35_syntha_vcf_voltages.jpg

There WILL NOT be 5 volts after that 220k because the transistors clamp it
to 0V.

Ken


>
>On 02.03.2006, at 03:25, c10h14no2i wrote:
>
>> I was still able to see(hear) a very low signal after the input
>> resistors. Then nothing after the one w/ the bad land.
>>
>
>Well. i changed the TL071CN - nothing changes.
>I resoldered everything. All values of the Resistors + Capacitors are
>o.k.
>no bad leads or anything other.
>
>I just don't see the 5V CV signal after the 220K... If i touch the
>1N2222 on the right end, i hear strong humming.
>
>If i don't see a signal on the other end: means short ? or anything
>else ?
>
>*sigh* seems i need to recheck EVERY thing again tomorrow ...
>
>--jan
>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
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_______________________________________________________________________
Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

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