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 Forum index » DIY Hardware and Software » Thomas Henry designs
A New Voltage Controlled Quadrature Function Generator
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numbernone



Joined: Aug 16, 2006
Posts: 477
Location: new york city

PostPosted: Sun Jul 01, 2007 11:21 am    Post subject: Reply with quote  Mark this post and the followings unread

Two please, if I may.
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Etaoin



Joined: Jun 30, 2005
Posts: 761
Location: Utrecht, NL

PostPosted: Mon Jul 09, 2007 10:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

@bugbrand:
Are you still going to post the etch-it-yourself single sided version?
Please? Wink

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The Alison Project



Joined: Jul 21, 2006
Posts: 187
Location: Canada
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PostPosted: Mon Jul 09, 2007 11:31 pm    Post subject: Reply with quote  Mark this post and the followings unread

Etaoin wrote:
@bugbrand:
Are you still going to post the etch-it-yourself single sided version?
Please? Wink


Yes Bug, hows the etch coming along.
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bugbrand



Joined: Nov 27, 2005
Posts: 845
Location: Bristol, UK
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PostPosted: Tue Jul 10, 2007 1:44 am    Post subject: Reply with quote  Mark this post and the followings unread

...oops! Caught being slow again! ..just been busy in bug-world -- plus moving house in a couple of days. I'll try my best asap!



Question --- would it be good to post a zip with Eagle files or would a jpeg image be better? Eagle would probably be easier for me, but that'd maybe be overly toe-treading on Randaleem's Pro-PCB (which looks mighty fine too!)

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krisp14u



Joined: Nov 11, 2006
Posts: 206
Location: uk

PostPosted: Tue Jul 10, 2007 12:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

bugbrand wrote:

Question --- would it be good to post a zip with Eagle files or would a jpeg image be better?


Hay Tom good luck with the move

Eagle would be good for me and i could convert to jpeg if anyone needed it



cheers
Paul D

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bugbrand



Joined: Nov 27, 2005
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PostPosted: Wed Jul 11, 2007 1:54 am    Post subject: Reply with quote  Mark this post and the followings unread

Argh, I was going to get this all together last night and then my computer had a total-death attack (..it seemingly hangs together with strings - its that old!)

Computer right now seems to be working again, but who knows... I'll try to get this done asap but, what with moving etc, it may be several days.

Eagle it is, then.

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kryptic



Joined: Feb 16, 2007
Posts: 40
Location: somewhere

PostPosted: Wed Jul 11, 2007 10:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

I would like to be put down for two PCBs if I am not too late.
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bambam



Joined: Feb 20, 2007
Posts: 60
Location: australia

PostPosted: Thu Jul 12, 2007 6:23 am    Post subject: Reply with quote  Mark this post and the followings unread

Put me down for 1 or even 2 if there are enough Wink
Thanks again for another great pcb!
Will you message when they are ready?

Brett
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Randaleem



Joined: May 17, 2007
Posts: 456
Location: Northern CA, USA

PostPosted: Fri Jul 13, 2007 1:34 am    Post subject: Reply with quote  Mark this post and the followings unread

Brett,

You're in. Thank you for the nice words about the layout. It's easy when the circuit is well done. Thomas Henry is a master of the schematic!

Yes, I'll message when they're ready.

Please send your delivery address to my email:
randaleem AT yahoo DOT com.

Thank you for the order and Thank you also to all the previously posted replies!

bambam wrote:
Put me down for 1 or even 2 if there are enough Wink
Thanks again for another great pcb!
Will you message when they are ready?

Brett
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ENDIF



Joined: Jul 14, 2006
Posts: 138
Location: Reno, NV

PostPosted: Sun Jul 22, 2007 5:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

Down for one, please kind sir. =]
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tomcat



Joined: Oct 14, 2005
Posts: 141
Location: earth

PostPosted: Sun Jul 22, 2007 5:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

tomcat wrote:
Like usual i cannot resist and will be in for one board Very Happy


Upgrade to 2 pls.
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philpeery



Joined: Nov 08, 2006
Posts: 134
Location: new jersey, usa

PostPosted: Sun Jul 22, 2007 8:22 pm    Post subject: VCQFG
Subject description: Me too!
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Hi Randaleem,

Please put me down for 2! VERY cool project! Once I get my breadboard cleared, I am going to test it out!

Phil
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frijitz



Joined: May 04, 2007
Posts: 1730
Location: NM USA
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PostPosted: Thu Aug 02, 2007 11:05 am    Post subject: Reply with quote  Mark this post and the followings unread

As a general question: what are the relative merits of a tri vs. sin QVCO?

I have a neat design for a sin unit that I had up temporarily a couple of years ago. Harmonics more than 50 dB down. No pips, no glitches, no slices, no dices ... the core is just a dual OTA-based pair of integrators and a single opamp nonlinearity.

Very Happy

Ian

(Edit,edit, edit ... third time's the charm.)

Last edited by frijitz on Thu Aug 02, 2007 12:23 pm; edited 3 times in total
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kenl666



Joined: May 12, 2004
Posts: 66
Location: Pacific Northwest

PostPosted: Thu Aug 02, 2007 11:55 am    Post subject: this looks very useful Reply with quote  Mark this post and the followings unread

Count me in for one board (no parts)
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Coriolis



Joined: Apr 11, 2005
Posts: 616
Location: Stilling, Denmark

PostPosted: Tue Aug 07, 2007 3:46 am    Post subject: Reply with quote  Mark this post and the followings unread

Hey Randaleem

Any news on the boards?

C
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Randaleem



Joined: May 17, 2007
Posts: 456
Location: Northern CA, USA

PostPosted: Tue Aug 07, 2007 4:03 am    Post subject: Reply with quote  Mark this post and the followings unread

Coriolis,

Less than a week away...

Randal
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Coriolis



Joined: Apr 11, 2005
Posts: 616
Location: Stilling, Denmark

PostPosted: Tue Aug 07, 2007 4:39 am    Post subject: Reply with quote  Mark this post and the followings unread

Sweet! Very Happy

C
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insider



Joined: Aug 01, 2007
Posts: 14
Location: france

PostPosted: Thu Aug 09, 2007 8:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

I would like one PCB also, it's possible ?
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elektro80
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Joined: Mar 25, 2003
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Location: Norway
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PostPosted: Fri Aug 10, 2007 2:08 am    Post subject: Reply with quote  Mark this post and the followings unread

I´m up for one too.
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softfin



Joined: Oct 11, 2006
Posts: 271
Location: Far in the north
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PostPosted: Fri Aug 10, 2007 6:17 am    Post subject: Reply with quote  Mark this post and the followings unread

Count me in for two boards, please.
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ringer



Joined: Feb 20, 2007
Posts: 49
Location: montreal

PostPosted: Sat Aug 11, 2007 7:05 am    Post subject: Reply with quote  Mark this post and the followings unread

I will take 3 , thanks.
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Etaoin



Joined: Jun 30, 2005
Posts: 761
Location: Utrecht, NL

PostPosted: Tue Aug 28, 2007 12:07 am    Post subject: Reply with quote  Mark this post and the followings unread

bugbrand wrote:
Argh, I was going to get this all together last night and then my computer had a total-death attack (..it seemingly hangs together with strings - its that old!)

Computer right now seems to be working again, but who knows... I'll try to get this done asap but, what with moving etc, it may be several days.

Eagle it is, then.


Any luck yet bugbrand?

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Danno Gee Ray



Joined: Sep 25, 2005
Posts: 1346
Location: Telford, PA USA

PostPosted: Sun Oct 28, 2007 9:05 am    Post subject: Reply with quote  Mark this post and the followings unread

Bugbrand, any chance you would still post your DIY version of a board here?

I'm beginning to feel a little shaking under my faith for being able to get a board from another source. I may just have to either etch my own or use proto board. Any design help on a board layout would be greatly appreciated!
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janvanvolt



Joined: Nov 24, 2005
Posts: 285
Location: Mainz, Germany

PostPosted: Sun Oct 28, 2007 6:34 pm    Post subject: Reply with quote  Mark this post and the followings unread

For me two please as well.

--jan
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para



Joined: Oct 16, 2006
Posts: 276

PostPosted: Sun Oct 28, 2007 7:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

last i heard from Bugs he was going under the knife so maybe give him some time.


steven
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