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 Forum index » DIY Hardware and Software » fonik's place
5-channel Attenuverting Mixer 2nd run
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fonik



Joined: Jun 07, 2006
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PostPosted: Fri Apr 17, 2009 1:58 am    Post subject: Reply with quote  Mark this post and the followings unread

ah, i see.

i am curious if he can establish his products... we will see.

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Etaoin



Joined: Jun 30, 2005
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Location: Utrecht, NL

PostPosted: Fri Apr 17, 2009 2:01 am    Post subject: Reply with quote  Mark this post and the followings unread

I like his sequential divider switch a lot, even though I'm not into 5U modulars at all and it would have to be able to do at least a 1:16 divide for my sequencer.
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ach_gott



Joined: Sep 09, 2008
Posts: 79
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PostPosted: Fri Apr 17, 2009 8:34 am    Post subject: Reply with quote  Mark this post and the followings unread

fonik wrote:
i still believe the fonitronik attenuverting mixer is a very versatile module - if it ever would come to a 3rd run, i would improve and add some features (real stable reference voltage, on/off switches for each channel).


Is this where we all start chiming in with the me toos? Laughing
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Junk Rhythm



Joined: Jan 07, 2008
Posts: 81
Location: San Francisco, CA

PostPosted: Fri Apr 17, 2009 9:48 am    Post subject: Reply with quote  Mark this post and the followings unread

fonik wrote:
i still believe the fonitronik attenuverting mixer is a very versatile module - if it ever would come to a 3rd run, i would improve and add some features (real stable reference voltage, on/off switches for each channel).


I'm with ach_gott and the Me Toos, Me Toos. If a third run becomes an option, count me in.
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LetterBeacon



Joined: Mar 18, 2008
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Location: London, UK

PostPosted: Fri Apr 17, 2009 9:50 am    Post subject: Reply with quote  Mark this post and the followings unread

...and me!
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numbertalk



Joined: May 05, 2008
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PostPosted: Fri Apr 17, 2009 10:19 am    Post subject: Reply with quote  Mark this post and the followings unread

If there are updates as mentioned I'd be up for another board or 2.
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numbertalk



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PostPosted: Sat Apr 18, 2009 5:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

Sorry if this is a stupid question, I don't know enough about circuits to know if this would be feasible or not with this kind of mixer, but would it be easy enough to add voltage control of the different levels if you do an updated run of these boards?
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fonik



Joined: Jun 07, 2006
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PostPosted: Sun Apr 19, 2009 7:56 am    Post subject: Reply with quote  Mark this post and the followings unread

numbertalk wrote:
Sorry if this is a stupid question, I don't know enough about circuits to know if this would be feasible or not with this kind of mixer, but would it be easy enough to add voltage control of the different levels if you do an updated run of these boards?

would be possible, but with a high part count, this resulting in a very large board. you would actually need VCAs...

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numbertalk



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PostPosted: Sun Apr 19, 2009 9:15 am    Post subject: Reply with quote  Mark this post and the followings unread

I had a feeling that might be the case, since the only CV Mixer modules I've seen had VCA chips. Oh well.

Thanks!

fonik wrote:
numbertalk wrote:
Sorry if this is a stupid question, I don't know enough about circuits to know if this would be feasible or not with this kind of mixer, but would it be easy enough to add voltage control of the different levels if you do an updated run of these boards?

would be possible, but with a high part count, this resulting in a very large board. you would actually need VCAs...
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NV



Joined: Oct 05, 2008
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PostPosted: Wed Apr 29, 2009 1:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

Just in case you decide on a 3rd run of these brilliant boards I would be interested in 2 of them, possibly more depending on the feature set you decide upon. I hope you'll decide to do another run, I would love to work with this design!
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wetterberg



Joined: Jun 27, 2008
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PostPosted: Wed Apr 29, 2009 1:48 pm    Post subject: Reply with quote  Mark this post and the followings unread

yes, please do a third run!
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ach_gott



Joined: Sep 09, 2008
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PostPosted: Wed Apr 29, 2009 2:46 pm    Post subject: Reply with quote  Mark this post and the followings unread

Ha! Here come the wigglers... Very Happy
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LetterBeacon



Joined: Mar 18, 2008
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PostPosted: Wed Apr 29, 2009 2:55 pm    Post subject: Reply with quote  Mark this post and the followings unread

EDIT - whoops forgot I'd already "me too'd"!
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fonik



Joined: Jun 07, 2006
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PostPosted: Thu Apr 30, 2009 12:13 am    Post subject: Reply with quote  Mark this post and the followings unread

i hear you all!

doing a PCB is time consuming. all the communication and packaging and tracking and whatever... it takes the time away from building things. and that's what i want to do too. and there are projects waiting to get finished and new ideas...

however, i could order some boards from manufacturer together with the SeqSwitch.

that would be on Monday, 4th of May!

so all who are interested in some attenuverting mixer PCBs (without new features, but hey, mute switches are just a question of the wiring - i could amend the documentation accordingly) contact me via this thread, PM or email until 3 MAY 09

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DGTom



Joined: Dec 08, 2008
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PostPosted: Thu Apr 30, 2009 4:43 am    Post subject: Reply with quote  Mark this post and the followings unread

Put me down for 4 please Very Happy

I was totally vexed with myself for missing out on this 1st time round, would make the perfect additon to my set-up.
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fonik



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PostPosted: Thu Apr 30, 2009 5:13 am    Post subject: Reply with quote  Mark this post and the followings unread

thanks.

BTW i will modify the onboard votalge source with a Z-diode (i.e. 1N715A for 5V) to provide more stability.

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Last edited by fonik on Thu Apr 30, 2009 5:49 am; edited 1 time in total
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spbaker



Joined: Nov 07, 2006
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PostPosted: Thu Apr 30, 2009 5:43 am    Post subject: Reply with quote  Mark this post and the followings unread

i'll grab 2 please Mattias!
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Luka



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PostPosted: Thu Apr 30, 2009 6:04 am    Post subject: Reply with quote  Mark this post and the followings unread

yeh im up for 2
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Last edited by Luka on Fri May 01, 2009 1:35 am; edited 1 time in total
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numbertalk



Joined: May 05, 2008
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PostPosted: Thu Apr 30, 2009 6:15 am    Post subject: Reply with quote  Mark this post and the followings unread

fonik wrote:
thanks.

BTW i will modify the onboard votalge source with a Z-diode (i.e. 1N715A for 5V) to provide more stability.


Just to make sure, the PCB isn't changing at all, right? So if I still have an extra board lying around from the previous run I could build it with the updated documentation to include these updates (mute button, more stable voltage)?

Thanks!
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fonik



Joined: Jun 07, 2006
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PostPosted: Thu Apr 30, 2009 6:49 am    Post subject: Reply with quote  Mark this post and the followings unread

numbertalk wrote:
fonik wrote:
thanks.

BTW i will modify the onboard votalge source with a Z-diode (i.e. 1N715A for 5V) to provide more stability.


Just to make sure, the PCB isn't changing at all, right? So if I still have an extra board lying around from the previous run I could build it with the updated documentation to include these updates (mute button, more stable voltage)?

Thanks!

the board is not changing. i just replace R30 by a Z-diode. oh, and i incorporated the missing 100k resistor to GND for the AC mode - but i didn't change anything to the actual boards layout or part numbers.

BTW how many should i order for you, #talk?

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numbertalk



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PostPosted: Thu Apr 30, 2009 7:27 am    Post subject: Reply with quote  Mark this post and the followings unread

I still have an extra PCB from the last run, so since there are no new PCB features I'll sit this run out. Sorry!

fonik wrote:
BTW how many should i order for you, #talk?
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ach_gott



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PostPosted: Thu Apr 30, 2009 11:36 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm in for 2.
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NV



Joined: Oct 05, 2008
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PostPosted: Thu Apr 30, 2009 2:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

I would be interested in 2 PCBs. Thank you Matthias, it's wonderful that you are doing another run!
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Junk Rhythm



Joined: Jan 07, 2008
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PostPosted: Thu Apr 30, 2009 4:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

Are we looking at the same prices as the previous PCB run?

EDIT due to my horrible sentence structure.

Last edited by Junk Rhythm on Fri May 01, 2009 3:38 pm; edited 1 time in total
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wetterberg



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PostPosted: Fri May 01, 2009 10:19 am    Post subject: Reply with quote  Mark this post and the followings unread

alRIGHT! - way cool of you, man.

I'll post it here only then:

I'll take 4 attenuverter boards and two sequential switch boards, plz Smile
Andreas.
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