i dunno how useful this is, but whatever, it's an analogue systems vco test:

http://www.elanhickler.com/misc/AnalogueSystemsVCO.wav (sine first,
triangle second)
http://www.elanhickler.com/misc/analoguesystems_sine.PNG
http://www.elanhickler.com/misc/analoguesystems_tri.PNG

On Mon, Nov 24, 2008 at 1:16 PM, James Husted < ersatzplanet@... > wrote:
> Actually that is not the case. If you make the video full screen you
> can see the output of the Z3000 is being used. when he changes
> waveforms you can see him re-patch the output cord to the other
> waveform jack. Also there is nothing plugged into the External in for
> the frequency counter so it is reading the internal VCO and not an
> external one. T Cwejman that is in the patch looks like the MMF-1, a
> multi-mode filter that is used in the demo also. Maybe it does not
> pass a unfiltered signal when set to it's extreme "open" settings. I
> would love to see the Z3000 straight into a scope. Don Kim's video
> shows similar looking square waves etc. when they are not being
> modulated. I am going to check the AS and Doepfer VCOs in me system.
>
> -James
>
> On Nov 24, 2008, at 8:28 AM, Andreas Wetterberg wrote:
>
>> He's mainly using the - very expensive - cwejman oscillator in that
>> demo, and using the tiptops as frequency counters.
>>
>>
>> ;)
>>
>> Andreas...
>>
>> James Husted skrev:
>>> I was hot for the Tiptop VCO till I saw this video made about
>>> it. - http://vimeo.com/2206614
>>> That is one of the worst sine waves I've seen and the spectrum
>>> display shows many harmonics that shouldn't be there. I count at
>>> least 7 on the spectrum display. . All I can hope is the
>>> distortion is caused by something downstream between the VCO and
>>> the scope. Does anyone who has a z3000 and a scope and can tell me
>>> if this setup was just faulty or does the unit make sines as shown
>>> in the vid The other waveforms shown are not to good on this demo
>>> either - the sawtooth and triangles look like they sag and the
>>> square waves are not square with flat tops and bottoms.
>>> -James
>>>
>>>
>>
>
> [Non-text portions of this message have been removed]
>
>



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