5-channel Attenuverting AC/DC Mixer PROFESSIONAL PCBs

fonik · Posted: Thu Dec 06, 2007 6:41 am Post subject:

so here is the documentation:
draft v1

drapdap · Posted: Fri Dec 07, 2007 5:58 am Post subject:

this is really nice, just read the pdf. i guess i`m late to ask for two boards. am i?

robert

fonik · Posted: Fri Dec 07, 2007 6:00 am Post subject:

no, you don't (check PMs).

fonik · Posted: Fri Dec 07, 2007 6:05 am Post subject:

upDATE: PCBs are scheduled to arrive on 13 DEC 07 due to holiday (thanksgiving) when i placed the order.

fonik · Posted: Sun Dec 09, 2007 10:24 am Post subject:

just tried a capture tool on my PC oscilloscope. these little vids show waht attenuvertion does on a cntered ramp/saw and how it affects a ADSR (without the offset that could be added using a 2nd input for that function):

ramp/saw
ADSR

bubblechamber · Posted: Sun Dec 09, 2007 10:58 pm Post subject:

looks great, if you keep this pace up I'm going to have 2 rows of Fonik modules this time next year.
thanks a lot and keep up the great work.
David

fonik · Posted: Wed Dec 12, 2007 3:23 pm Post subject:

boards arrived today. i just started populating one. my stock run out of some parts (blame it on the klee i am currently building), they will hopefully be in mail tomorrow.

Posted Image, might have been reduced in size. Click Image to view fullscreen.

Posted Image, might have been reduced in size. Click Image to view fullscreen.

Sound · Joined: Jun 06, 2006 Posts: 842 Audio files: 1

Oeee oe oe oe oeee oeeee! Very Happy

sonicwarrior · Joined: Dec 22, 2005 Posts: 266 Location: Cologne, Germany

That looks good.

So you are using AutoGround (I only know the german "AutoMasse" from SPrint Layout) now for keeping the pollution of the environment lower? Smile

EdisonRex · Posted: Wed Dec 12, 2007 3:37 pm Post subject:

Looks like your typically nice layout. I can wait a while, given the backlog I need to fix. Hopefully your build will work. Smile

fonik · Posted: Wed Dec 12, 2007 11:09 pm Post subject:

i got some PMs concerning payment recently. i want to let you know that i won't take any money before i tested the PCB to prove it working (will hopefully happen tonight) and i am ready to ship them.

mono-poly · Posted: Thu Dec 13, 2007 5:21 am Post subject:

Great work Matthias!!

BTW i will check the stuff you did for me tonight Smile

fonik · Posted: Thu Dec 13, 2007 4:50 pm Post subject:

so i finally got it working. you won't believe it! what a horrible evening. 1st i put in the IC backwards (holy smoke!) and then 2nd i recognized after all a mistake in the documentation that let me wire the sockets with GND and tip switched!

however, the PCBs are fine. i am not, i will have to go to bed now...
sleeping

fonik · Posted: Sat Dec 15, 2007 4:52 am Post subject:

check your PMs...
Wink

fonik · Posted: Sat Dec 15, 2007 7:45 am Post subject:

Attention: there is something that i almost forgot to mention, after populating the PCB.
The footprints for the connectors are a little bit to close to each other, thus you might not be able to use connectors, unless they can be lined up in rows (mine cannot).
So one will have to partly (edit) wire it up in a conventional way like CGS or MFOS PCBs.
Hope you're fine with that. (If not, PM me)

Sound · Joined: Jun 06, 2006 Posts: 842 Audio files: 1

I just have received mine. Very Happy

softfin · Posted: Tue Dec 18, 2007 6:35 am Post subject:

My boards came today too. You're the fastest, Fonik!! salut

sonicwarrior · Joined: Dec 22, 2005 Posts: 266 Location: Cologne, Germany

Got mine, too. Cool

v-un-v · Posted: Tue Dec 18, 2007 9:25 am Post subject:

I'm still waiting for the ferry to cross the water Rolling Eyes

fonik · Posted: Tue Dec 18, 2007 9:37 am Post subject:

tom, don't be envious. sound and softfin paid on dec 14th! they have been very fast, too.
the early bird catches the worm, as we say in teutonia...

TheAncientOne · Joined: Dec 26, 2006 Posts: 144 Location: United Kingdom

Thanks Matthias

Mine arrived today and they look great.

I'm having the same problem as you, it seems - the Klee has eaten all my spare connectors, (and it's still saying 'Feed me!'), I bet it will want a front panel next.....

Best wishes

v-un-v · Posted: Thu Dec 20, 2007 8:50 am Post subject:

Mike, you get yours two days before me? I bet these went to the outer Hebrides first before getting here?? Shocked

Great boards Matthias! Thanks Very Happy

xpmtl · Joined: Aug 10, 2007 Posts: 162 Location: Brussels, Belgium

boards arrived today. thanks fonik

elektro80 · Posted: Thu Dec 20, 2007 1:37 pm Post subject:

And I got mine today! Excellent! Very Happy

b-funk · Joined: Jul 17, 2007 Posts: 193 Location: Berlin

mine arrived today...

thank you matthias.

best wishes,

tobias