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



Joined: Jul 04, 2007
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PostPosted: Fri May 01, 2009 10:42 am    Post subject: Reply with quote  Mark this post and the followings unread

Matthias,
If they ship together with the two VC switch boards I ordered, reducing cost of shipping, I would like two please.
Thanks
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mistercooper



Joined: Jul 17, 2006
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Location: Seattle

PostPosted: Fri May 01, 2009 11:21 am    Post subject: Reply with quote  Mark this post and the followings unread

PM sent
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LektroiD



Joined: Aug 23, 2008
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PostPosted: Sat May 02, 2009 3:11 am    Post subject: Reply with quote  Mark this post and the followings unread

I was lucky enough to get on the last run, but I'd be in for another. I paid for a sequential switch already, if these can be shipped together it would save postage.
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fonik



Joined: Jun 07, 2006
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PostPosted: Sun May 03, 2009 6:50 am    Post subject: Reply with quote  Mark this post and the followings unread

g.p.macklin wrote:
Are we looking at the same prices as the previous PCB run?

yes. however the shipping would change. refer to the SeqSwitch PCB concerning shipping, please.

since i order the PCBs together with the SeqSwitch PCBs, i will mail them together - so one would have to pay only once for p&p.

await PM concerning paypement when the boards are in (approx. mid-may).

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fonik



Joined: Jun 07, 2006
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PostPosted: Sun May 03, 2009 8:36 am    Post subject: Reply with quote  Mark this post and the followings unread

pricing or the 3rd run(paypal preferred):

europe
9.-EUR each PCB
+1x p&p 3.-EUR (2.-EUR germany)


worldwide
12.-USD each PCB
+1x p&p 4.-USD for 1 PCB
+1x p&p 8.-USD for 2+ PCBs

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fonik



Joined: Jun 07, 2006
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PostPosted: Mon May 11, 2009 3:17 am    Post subject: Reply with quote  Mark this post and the followings unread

just uploaded the documentation for the 3rd limited run:
http://www.modular.fonik.de/pdf/f-mixer-rev3.pdf

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parasitk



Joined: Sep 21, 2008
Posts: 69
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PostPosted: Tue May 12, 2009 9:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

Did I miss the boat on this, or can I still order?
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fonik



Joined: Jun 07, 2006
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PostPosted: Tue May 12, 2009 10:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

there are still a view left, so...
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LektroiD



Joined: Aug 23, 2008
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PostPosted: Thu May 14, 2009 4:24 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi, when should we pay for this, are we to await an email first?
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fonik



Joined: Jun 07, 2006
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PostPosted: Thu May 14, 2009 4:27 am    Post subject: Reply with quote  Mark this post and the followings unread

as usual i won't take any money until the boards are physically in my hands. i will then contact everyone who placed an adcance order concerning paypment details.
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parasitk



Joined: Sep 21, 2008
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PostPosted: Thu May 28, 2009 8:39 am    Post subject: Reply with quote  Mark this post and the followings unread

My boards arrived today, thanks! Very Happy
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BananaPlug



Joined: Jul 04, 2007
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PostPosted: Thu May 28, 2009 6:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

Got mine too. They look so nice I might just put them in little frames and hang them on the wall.
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funtykigs



Joined: Feb 09, 2010
Posts: 17
Location: UK

PostPosted: Wed Mar 03, 2010 3:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

I'm trying to work out which zener diode I need for this board and failing...

can anyone suggest a suitable replacement for

Quote:
The Zener Diode defines the offset voltage. I used Z5.1 (1N715A,
1N4733A) for approx 5V. Simply select the value you want.


from rapid?

http://www.rapidonline.com/searchresults.aspx?style=0&kw=zener+diode
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fonik



Joined: Jun 07, 2006
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PostPosted: Wed Mar 03, 2010 3:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

i used a 500mW 5.1V diode, which has been sufficient.
rapid #47-3014

you could also use a 1.3W version.
rapid #47-3056

hope that helps.

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funtykigs



Joined: Feb 09, 2010
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PostPosted: Wed Mar 03, 2010 3:42 pm    Post subject: Reply with quote  Mark this post and the followings unread

thankyou for the very quick reply Very Happy
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adambee7



Joined: Apr 04, 2009
Posts: 420
Location: united kingdom

PostPosted: Thu Mar 04, 2010 7:55 am    Post subject: Reply with quote  Mark this post and the followings unread

Any chance doing another run of these? Missed out on the last run. Very Happy Very Happy
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diablojoy



Joined: Sep 07, 2008
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PostPosted: Fri Mar 05, 2010 1:46 am    Post subject: Reply with quote  Mark this post and the followings unread

me too please Very Happy if possible
four would be good
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fonik



Joined: Jun 07, 2006
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PostPosted: Fri Mar 05, 2010 1:51 am    Post subject: Reply with quote  Mark this post and the followings unread

thank you for your interest.
i don't want to discourage anyone, however give me some time. there are other projects coming first (VCPS, RingMod, Clock), and the logistics of a PCB sale are not to underestimate...

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diablojoy



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PostPosted: Fri Mar 05, 2010 4:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

sorry if that came across badly time wise
just an expression of interest
as in all your projects
if and when is of course entirely up to you
will wait patiently or at least try too Smile
looking forward to the VCPS and the clock projects
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adambee7



Joined: Apr 04, 2009
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PostPosted: Sat Mar 06, 2010 1:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

Same here man. Looking forward to those new projects. Very Happy Very Happy
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wmonk



Joined: Sep 15, 2008
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PostPosted: Sun Mar 14, 2010 1:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

Finished an Attenuverting Mixer today, and encounter a problem.
I can't calibrate channels 1 and 4. Channels 2, 3 and 5 work as expected after calibrating. The output voltage of channel 1 and 4 goes from 0V (left end) to 6.50V (right end)
For channel 2,3 and 5: -6.50V (left), 0V (center), 6.50V (right)
The mix output stays at -11V
Didn't wire up the AC/DC switch yet.

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fonik



Joined: Jun 07, 2006
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PostPosted: Sun Mar 14, 2010 2:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

wmonk wrote:
Finished an Attenuverting Mixer today, and encounter a problem.
I can't calibrate channels 1 and 4. Channels 2, 3 and 5 work as expected after calibrating. The output voltage of channel 1 and 4 goes from 0V (left end) to 6.50V (right end)
For channel 2,3 and 5: -6.50V (left), 0V (center), 6.50V (right)
The mix output stays at -11V
Didn't wire up the AC/DC switch yet.

so it does something? that's great Laughing
it is actually a small circuitry, so we will find the error soon, i guess.
what's the boards revision?

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wmonk



Joined: Sep 15, 2008
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PostPosted: Sun Mar 14, 2010 5:06 pm    Post subject: Reply with quote  Mark this post and the followings unread

It's board revision 3. Yeah, it does work a little bit Wink
Can't work on weekdays, only in the weekends though Sad

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fonik



Joined: Jun 07, 2006
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PostPosted: Mon Mar 15, 2010 12:59 am    Post subject: Reply with quote  Mark this post and the followings unread

there are a few things i wonder about, though:
how come the 6.5V: which zener diode did you use?
not wiring the switch will just keep the module in AC mode. so refering to the -11V (DC?) there will be something wrong in the summing stage, too.
how to you power the module, 12V or 15V?

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wmonk



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PostPosted: Fri Mar 19, 2010 1:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

I'm back at my modular place. Smile
I power the modules from +/- 15V
Hm, on the zener, I read BZX 850, but that can be anything, the value is towards the pcb, so can't read that. Is there a way to measure it?

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