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Simple VCF Problems   Message List  
Reply | Forward Message #516 of 562 |
Re: Simple VCF Problems

Glad you got something up and running! When you want something later with CV
input you can always try building it again - but just start with the simple
layout circuit first. The CV control really does work great - you can also use a
MIDI-CV box to control it over MIDI, such as a Kenton box etc.


--- In CasioSK@yahoogroups.com, "sinne.morgen" <sinne.morgen@...> wrote:
>
> Hi,
>
> first I like to thank you for your answer, I already read it a week ago or so,
just were too busy to write back.
>
> I didnt actually find out where my mistake was. Nevertheless I did manage to
build a simple lowpass cutoff filter with resonance control (a simple Sallen-Key
Filter...). It actually works great and has even less parts than the "Simple
VCF", allthough I dont know how to change it to a version with a control
voltage. Doesnt matter to me, thats all I need right now.
>
> Greetings from Germany
>
> Sinne





Thu May 21, 2009 2:12 am

gmeredith1
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Message #516 of 562 |
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Hello, I'm trying to build the "Simple VCF" like the tutorial in the filessection. First I used a AD822 opAmp; had one leftover with only one side working...
sinne.morgen
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May 9, 2009
11:31 am

Which version of the circuit board did you make? The upper, generic one, or the lower, specially adapted one for the Casio SK? If you're using the bottom one,...
gmeredith1
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May 11, 2009
12:37 am

Hi, first I like to thank you for your answer, I already read it a week ago or so, just were too busy to write back. I didnt actually find out where my mistake...
sinne.morgen
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May 19, 2009
10:13 pm

Glad you got something up and running! When you want something later with CV input you can always try building it again - but just start with the simple layout...
gmeredith1
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May 21, 2009
2:12 am

Sinne- i'm always looking for simple new circuits, do you have a schematic of your salen-key filter? I'm also having some trouble with the simple VCF. There is...
kingconga42
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Jul 25, 2009
3:35 am

Did you build the version adapted to the SK, or just the generic circuit? Are you using it on an SK, or a standalone unit for anything? If you built the...
gmeredith1
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Aug 1, 2009
12:16 am

Hi, published today by AUDIO SODOMY label. http://www.archive.org/download/asr22zip/ASR22.zip Keyboards used: CASIO SK-1 CASIO SA-39 YAMAHA PSS-50 ...and 6...
yerzmyey@...
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Aug 10, 2009
9:44 pm
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