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 Forum index » DIY Hardware and Software » YuSynth
Steiner VCF inputs
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isak



Joined: Dec 13, 2009
Posts: 726
Location: Israel
Audio files: 18

PostPosted: Mon Sep 10, 2012 3:33 pm    Post subject:  Steiner VCF inputs Reply with quote  Mark this post and the followings unread

Hi there Smile

i have a noob question..
as i understand the Steiner-Parker Synthacon have 3 vco's.
lets say i have 3 X VCO, how can i connect all 3 VCO's to the LP or BP or HP?
did the synth have more then 1 input for each mode?
maybe the VCO's went to the VCA that have 3 inputs and then to the VCF?

i hope my question make sense.

cheers,
Isak E.

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yusynth



Joined: Nov 24, 2005
Posts: 1233
Location: France

PostPosted: Wed Sep 12, 2012 11:57 am    Post subject: Reply with quote  Mark this post and the followings unread

In general one uses a signal mixer to combine the inputs of different signals.
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isak



Joined: Dec 13, 2009
Posts: 726
Location: Israel
Audio files: 18

PostPosted: Wed Sep 12, 2012 12:55 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi yves and thank you for replying.

Yes, I figure it out.
Took me few days but I got it Smile
Thank you for sharing your cool designs!

btw have another question.
I remember reading that some one had or has a problem with noisy pot, reso pot if I'm not mistaking.
You said that the problem is something with the Steiner design.
he use the CA3096 design.
Does the problem of the reso pot noise is with the 1583 design as well?

Cheers,
Isak E.

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yusynth



Joined: Nov 24, 2005
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PostPosted: Wed Sep 12, 2012 1:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

It is less sensitive there but is present too. A way to avoid that is to use a high quality cermet potentiometer or a plastic track potentiometer.

I eventually came up with a completely different design of the resonance circuit for this filter that I introduced for the MiniBrute and I will publish it sometimes soon on my site.

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Last edited by yusynth on Wed Sep 12, 2012 1:38 pm; edited 1 time in total
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isak



Joined: Dec 13, 2009
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Location: Israel
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PostPosted: Wed Sep 12, 2012 1:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thank you!
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isak



Joined: Dec 13, 2009
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Audio files: 18

PostPosted: Wed Sep 12, 2012 2:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
I eventually came up with a completely different design of the resonance circuit for this filter that I introduced for the MiniBrute and I will publish it sometimes soon on my site.


How much is soon?
I really want to build it Rolling Eyes

Thanks again for your amazing work!

EDIT:
I didn't knew what is the MiniBrute, i google it and found an amazing new synth.
Great job Man, now i really want to build it!
BTW can it work with 12V?

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Cardinen



Joined: Sep 15, 2009
Posts: 39
Location: Italy

PostPosted: Thu Sep 13, 2012 5:13 am    Post subject: Reply with quote  Mark this post and the followings unread

yusynth wrote:

I eventually came up with a completely different design of the resonance circuit for this filter that I introduced for the MiniBrute and I will publish it sometimes soon on my site.


I had noticed that when i first tried the minibrute some months ago, the resonance was more stable than my steiner, maybe less wild.
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