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new steiner VCF design

Re: new steiner VCF design

2006-11-07 by Jay

sasami@... wrote:

> I've just uploaded details of a new Euro-rack version of the Steiner VCF.
> Check it out.

Awesome! Now someone just needs to draw up a FPD panel for it...

Re: new steiner VCF design

2006-11-07 by Richard Brewster

Nice input buffers! (No CV mixer op amp?) The changes in the filter
circuit are interesting! Twelve diodes. A CV reject trimmer. 2N3904
and 2N3906 transistors instead of the 2N2222 and 2N2907. Inverting
output buffer.

Ken, are any of these changes worth doing as a modification to the old
circuit? I am wondering about the additional diodes.

Thanks,

Richard Brewster
http://www.pugix.com

sasami@... wrote:
Show quoted textHide quoted text
> I've just uploaded details of a new Euro-rack version of the Steiner VCF.
> Check it out.
>
>
> Ken
> _______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
> Yahoo! Groups Links
>
>

Re: new steiner VCF design

2006-11-07 by John

Has somebody designed a panel that this will fit in?

regards,
John
Show quoted textHide quoted text
On 11/7/06 4:45 PM, "sasami@..." <sasami@...> wrote:

> I've just uploaded details of a new Euro-rack version of the Steiner VCF.
> Check it out.
>
> Ken
> __________________________________________________________
> Ken Stone sasami@... <mailto:sasami%40hotkey.net.au>
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>
>


Regards,
John



[Non-text portions of this message have been removed]

Re: new steiner VCF design

2006-11-08 by sasami@hotkey.net.au

>(No CV mixer op amp?)
I wanted to keep some of the original flavor!

>Inverting output buffer.

Input buffers are inverting too, so "it all comes out in the wash".

>Ken, are any of these changes worth doing as a modification to the old
>circuit? I am wondering about the additional diodes.

Yes, I feel the diodes are worthwhile. CV Reject would be worthwhile if you
are getting thumping.

Ken.
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

Re: new steiner VCF design

2006-11-08 by Gerald Stevens

A question I've been meaning to ask about the old design. When I adjust the
resonance, there is a large, slow DC offset that tracks the knob turn then
drifts back to zero causing some nasty clipping if I turn it too fast. I
believe it has to do with the 10uF AC coupling cap at the TL071, and have
been meaning to change it to something smaller. How much smaller? Looks
like the new circuit has switched to 1uF, and it's on the other side of the
10k resistor now? Is there something else wrong with my board that could
be causing this? Probably is... never did get it to self-oscillate.

-gerald
Show quoted textHide quoted text
On 11/7/06, sasami@... <sasami@...> wrote:

>Ken, are any of these changes worth doing as a modification to the old
>circuit? I am wondering about the additional diodes.

Yes, I feel the diodes are worthwhile. CV Reject would be worthwhile if you
are getting thumping.


[Non-text portions of this message have been removed]

Re: new steiner VCF design

2006-11-08 by Laurie Biddulph

I will be supplying fully assembled EuroRack versions of this and other CGS
modules soon and will offer front panels with kits

Best Regards

(Mr) Laurie Biddulph
Mobile: 0400 257 645

Elby Designs
ABN: 70 022 727 605
http://www.elby-designs.com

This e-mail and any files transmitted with it are confidential and intended
for the addressee only.
If you are not the addressee you may not copy, forward, disclose or
otherwise use it, or any part of it, in any form whatsoever. If you have
received this e-mail in error please notify the sender and ensure that all
copies of this e-mail and any files transmitted with it are deleted.
Any views or opinions represented in this e-mail are solely those of the
author and do not necessarily represent those of Elby Designs.
Although this e-mail and its attachments have been scanned for the presence
of computer viruses, Elby Designs will not be liable for any losses as a
result of any viruses being passed on.

----- Original Message -----
Show quoted textHide quoted text
From: "Jay" <groups@...>
To: <cgs_synth@yahoogroups.com>
Sent: Wednesday, November 08, 2006 9:43 AM
Subject: Re: [cgs_synth] new steiner VCF design


> sasami@... wrote:
>
>> I've just uploaded details of a new Euro-rack version of the Steiner VCF.
>> Check it out.
>
> Awesome! Now someone just needs to draw up a FPD panel for it...
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
> Yahoo! Groups Links
>
>
>
>

Re: new steiner VCF design

2006-11-08 by wasubot

Hey Laurie,

Thats excellent news. WIll you only be offering eurorack panels or also motm
size ones?
Show quoted textHide quoted text
On 11/8/06, Laurie Biddulph <elby_designs@...> wrote:
>
> I will be supplying fully assembled EuroRack versions of this and other
> CGS
> modules soon and will offer front panels with kits
>
> Best Regards
>
> (Mr) Laurie Biddulph
> Mobile: 0400 257 645
>
> Elby Designs
> ABN: 70 022 727 605
> http://www.elby-designs.com
>
> This e-mail and any files transmitted with it are confidential and
> intended
> for the addressee only.
> If you are not the addressee you may not copy, forward, disclose or
> otherwise use it, or any part of it, in any form whatsoever. If you have
> received this e-mail in error please notify the sender and ensure that all
>
> copies of this e-mail and any files transmitted with it are deleted.
> Any views or opinions represented in this e-mail are solely those of the
> author and do not necessarily represent those of Elby Designs.
> Although this e-mail and its attachments have been scanned for the
> presence
> of computer viruses, Elby Designs will not be liable for any losses as a
> result of any viruses being passed on.
>
> ----- Original Message -----
> From: "Jay" <groups@... <groups%40fatbaron.com>>
> To: <cgs_synth@yahoogroups.com <cgs_synth%40yahoogroups.com>>
> Sent: Wednesday, November 08, 2006 9:43 AM
> Subject: Re: [cgs_synth] new steiner VCF design
>
> > sasami@... <sasami%40hotkey.net.au> wrote:
> >
> >> I've just uploaded details of a new Euro-rack version of the Steiner
> VCF.
> >> Check it out.
> >
> > Awesome! Now someone just needs to draw up a FPD panel for it...
> >
> >
> > The CGS Modular Synth home page: http://www.cgs.synth.net/
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>



--
Wasubot
----------------------------
Notes: Special Sequence Mixed For Dancing


[Non-text portions of this message have been removed]

Re: new steiner VCF design

2006-11-08 by Laurie Biddulph

Unfortunately both FrakRack and MOTM have been exclusively assigned to others so I am unable to move in to those formats for CGS although I had planned on that originally.

Best Regards

(Mr) Laurie Biddulph
Mobile: 0400 257 645

Elby Designs
ABN: 70 022 727 605
http://www.elby-designs.com

This e-mail and any files transmitted with it are confidential and intended for the addressee only.
If you are not the addressee you may not copy, forward, disclose or otherwise use it, or any part of it, in any form whatsoever. If you have received this e-mail in error please notify the sender and ensure that all copies of this e-mail and any files transmitted with it are deleted.
Any views or opinions represented in this e-mail are solely those of the author and do not necessarily represent those of Elby Designs.
Although this e-mail and its attachments have been scanned for the presence of computer viruses, Elby Designs will not be liable for any losses as a result of any viruses being passed on.

----- Original Message -----
Show quoted textHide quoted text
From: wasubot
To: cgs_synth@yahoogroups.com ; elby_designs@...
Sent: Wednesday, November 08, 2006 6:01 PM
Subject: [Norton AntiSpam] Re: [cgs_synth] new steiner VCF design


Hey Laurie,

Thats excellent news. WIll you only be offering eurorack panels or also motm size ones?



On 11/8/06, Laurie Biddulph < elby_designs@...> wrote:
I will be supplying fully assembled EuroRack versions of this and other CGS
modules soon and will offer front panels with kits

Best Regards

(Mr) Laurie Biddulph
Mobile: 0400 257 645

Elby Designs
ABN: 70 022 727 605
http://www.elby-designs.com

This e-mail and any files transmitted with it are confidential and intended
for the addressee only.
If you are not the addressee you may not copy, forward, disclose or
otherwise use it, or any part of it, in any form whatsoever. If you have
received this e-mail in error please notify the sender and ensure that all
copies of this e-mail and any files transmitted with it are deleted.
Any views or opinions represented in this e-mail are solely those of the
author and do not necessarily represent those of Elby Designs.
Although this e-mail and its attachments have been scanned for the presence
of computer viruses, Elby Designs will not be liable for any losses as a
result of any viruses being passed on.

----- Original Message -----
From: "Jay" <groups@...>
To: <cgs_synth@yahoogroups.com>
Sent: Wednesday, November 08, 2006 9:43 AM
Subject: Re: [cgs_synth] new steiner VCF design

> sasami@... wrote:
>
>> I've just uploaded details of a new Euro-rack version of the Steiner VCF.
>> Check it out.
>
> Awesome! Now someone just needs to draw up a FPD panel for it...
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
> Yahoo! Groups Links
>
>
>
>







--
Wasubot
----------------------------
Notes: Special Sequence Mixed For Dancing

[Non-text portions of this message have been removed]

Re: new steiner VCF design

2006-11-08 by data2action

this is too cool. my main rig is fracrack and is stuffed w/ CGS
modules... my _only_ niggling complaint has been the long skinny
layout of some of the PCBs... mounting those perpendicular to the
panal makes for some deep modules and less-than-secure mechanix...
this is a definate improvement for us small-format guys... thanks,
Ken! you're a real hero.

b
Show quoted textHide quoted text
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> I've just uploaded details of a new Euro-rack version of the Steiner
VCF.
> Check it out.
>
>
> Ken
>
_______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> Australian Miniature Horses & Ponies
<http://www.blaze.net.au/~sasami/>
>

Re: new steiner VCF design

2006-11-09 by Laurie Biddulph

In collaboration with Ken I am releasing a suite of EuroRack compatible
boards for the CGS family. By implication that means they will comfortably
fit in to FracRack panels

Best Regards

(Mr) Laurie Biddulph
Mobile: 0400 257 645

Elby Designs
ABN: 70 022 727 605
http://www.elby-designs.com

This e-mail and any files transmitted with it are confidential and intended
for the addressee only.
If you are not the addressee you may not copy, forward, disclose or
otherwise use it, or any part of it, in any form whatsoever. If you have
received this e-mail in error please notify the sender and ensure that all
copies of this e-mail and any files transmitted with it are deleted.
Any views or opinions represented in this e-mail are solely those of the
author and do not necessarily represent those of Elby Designs.
Although this e-mail and its attachments have been scanned for the presence
of computer viruses, Elby Designs will not be liable for any losses as a
result of any viruses being passed on.

----- Original Message -----
Show quoted textHide quoted text
From: "data2action" <rdrake@...>
To: <cgs_synth@yahoogroups.com>
Sent: Thursday, November 09, 2006 8:42 AM
Subject: [cgs_synth] Re: new steiner VCF design


> this is too cool. my main rig is fracrack and is stuffed w/ CGS
> modules... my _only_ niggling complaint has been the long skinny
> layout of some of the PCBs... mounting those perpendicular to the
> panal makes for some deep modules and less-than-secure mechanix...
> this is a definate improvement for us small-format guys... thanks,
> Ken! you're a real hero.
>
> b
>
>
> --- In cgs_synth@yahoogroups.com, sasami@... wrote:
>>
>> I've just uploaded details of a new Euro-rack version of the Steiner
> VCF.
>> Check it out.
>>
>>
>> Ken
>>
> _______________________________________________________________________
>> Ken Stone sasami@...
>> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
>> Australian Miniature Horses & Ponies
> <http://www.blaze.net.au/~sasami/>
>>
>
>
>
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
> Yahoo! Groups Links
>
>
>
>

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