Cgs synth

The 240k is the offset resistor. it sounds like the resistor you have in
there is too small, perhaps not a 270k at all.

Ken

>Sorry for the basic question, but which are the offset resistors? The
>ones around the tl072 that outputs to the saw out?
>
>If so, I should mention I am using a 270k instead of the 240k, and a
>560k instead of the 330k, which is what the elby instructions said to
>do. I think everything else is per the schematics.
>
>
>--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>>
>> Usually caused by the signal hitting a power rail and running out of
>> anywhere to go. It's what i'd expect to find if an offset resistor
>was not
>> soldered in propperly (or the wrong value), or some other voltage
>> determining part. The name givven to this is "clipping".
>>
>> Ken
>>
>> >I got a working scope today, and the saw out of the VCO is very
>> >strange. Rather than /|/|/|/| it goes -\-\-\-\. That is the best I
>> >can do, but the 1st example should be a normal saw, and the 2nd
>> >example, whats going on is that it goes straight up, has a flat top,
>> >then slopes down. I tested my paia VCO and the shapes are fine, so Im
>> >sure Im using the scope correctly.
>> >Any idea what could be causing this?
>> >
>> >Thanks,
>> >Scott
>> >
>> >
>> >
>> >
>> >
>> >The CGS Modular Synth home page: http://www.cgs.synth.net/
>> >
>> >Yahoo! Groups Links
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> _______________________________________________________________________
>> 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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>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/>