Author |
Message |
fonik
Joined: Jun 07, 2006 Posts: 3950 Location: Germany
Audio files: 23
|
Posted: Thu Sep 12, 2013 5:51 am Post subject:
PCBs & Panels for a 6HP Cascadable 4ch DC Mixer Subject description: taking orders until 29th of september |
|
|
i recently built myself a few simple 4 channel DC coupled mixers, nothing fancy.
and i think they would make a great beginners project.
nevertheless they could be helpful for anybody using eurorack format.
they are cascadable in the sense that you could route the sum of the 1st mixer behind the panel to an additional invisible 5th input of the 2nd mixer (and you could then of course route the sum of the 2nd mixer to the hidden 5th input of the 3rd mixer and so forth).
the sum output has a pot to set the attenuation, however, choosing the right resistor values you can apply gain to sum, too. i will explain that in the forthcoming documentation.
Building Documentation (230kb)
i will offer the PCBs, and 6HP front panels which would match the design for the thomas henry projects.
PRICES
bare PCB = 5.-EUR,
eurorack 6HP front panel = 7.-EUR
packaging&postage 4.-EUR worldwide (deutschland 2.-EUR)(note: i am NOT taking any money upfront, just wait for me contacting you regarding payment - paypal in EUR will be preferred).
i will take orders until 29th of september,
then i will order the PCB and front panels. so they should be available and ready for delivery mid october.
BTW the sockets are the PJ301-B available from thonk/UK or earthenvar/USA, the potentiometers are 9mm.
the schematic is the common unity gain 2x inverting mixer scheme. simple straight forward. detailed documentation will follow soon.
the PCBs:
Cascadable DC Mixer 6HP (WIP) by fonitronik, on Flickr
partly stuffed:
Cascadable DC Mixer 6HP (WIP) by fonitronik, on Flickr
completed
DC Mixer Completed by fonitronik, on Flickr
behind the panel
DC Mixer Completed by fonitronik, on Flickr _________________
cheers,
matthias
____________
Big Boss at fonitronik
Tech Buddy at Random*Source Last edited by fonik on Tue Jul 08, 2014 3:08 am; edited 2 times in total |
|
Back to top
|
|
|
StormB
Joined: Aug 15, 2013 Posts: 18 Location: Germany
|
Posted: Thu Sep 12, 2013 11:56 am Post subject:
|
|
|
Hi
i want 2 PCB please |
|
Back to top
|
|
|
Level5
Joined: Feb 16, 2007 Posts: 29 Location: Germany
|
Posted: Fri Sep 13, 2013 2:32 am Post subject:
|
|
|
I'm in with 4 PCB |
|
Back to top
|
|
|
LektroiD
Joined: Aug 23, 2008 Posts: 1018 Location: Scottish Borders
Audio files: 2
G2 patch files: 2
|
Posted: Fri Oct 04, 2013 6:44 am Post subject:
|
|
|
2 full sets please, if I'm not too late... _________________ LektroiD |
|
Back to top
|
|
|
fonik
Joined: Jun 07, 2006 Posts: 3950 Location: Germany
Audio files: 23
|
Posted: Fri Oct 04, 2013 6:50 am Post subject:
|
|
|
CLOSED _________________
cheers,
matthias
____________
Big Boss at fonitronik
Tech Buddy at Random*Source |
|
Back to top
|
|
|
slo
Joined: Feb 18, 2007 Posts: 204 Location: Victoria, BC
Audio files: 1
|
Posted: Tue Oct 29, 2013 4:40 pm Post subject:
|
|
|
Shoot...I would have liked one of these
George |
|
Back to top
|
|
|
LektroiD
Joined: Aug 23, 2008 Posts: 1018 Location: Scottish Borders
Audio files: 2
G2 patch files: 2
|
Posted: Tue Oct 29, 2013 4:50 pm Post subject:
|
|
|
Would it be possible to get the build docs for this?
Many thanks _________________ LektroiD |
|
Back to top
|
|
|
LektroiD
Joined: Aug 23, 2008 Posts: 1018 Location: Scottish Borders
Audio files: 2
G2 patch files: 2
|
Posted: Thu Nov 07, 2013 7:55 am Post subject:
Re: PCBs & Panels for a 6HP Cascadable 4ch DC Mixer Subject description: taking orders until 29th of september |
|
|
fonik wrote: |
BTW the sockets are the PJ301-B available from thonk/UK or earthenvar/USA, the potentiometers are 9mm.
the schematic is the common unity gain 2x inverting mixer scheme. simple straight forward. detailed documentation will follow soon.
the PCBs:
Cascadable DC Mixer 6HP (WIP) by fonitronik, on Flickr
|
Assuming this is the final BOM, are the pots 100K Lin or Log? _________________ LektroiD |
|
Back to top
|
|
|
diablojoy
Joined: Sep 07, 2008 Posts: 809 Location: melbourne australia
Audio files: 11
|
Posted: Thu Nov 14, 2013 1:31 pm Post subject:
|
|
|
Quote: | Assuming this is the final BOM, are the pots 100K Lin or Log? |
considering its a DC mixer i would assume linear
matthias boards received many thanks.
edit : oh by the way seems i am joining the euro party, found 4 sets of 84HP rack rails and enough end plate in some old salvaged gear ( a large data switch )
so i guess i will have to use them for a small euro set up. _________________ In an infinite universe one might very well
ask where the hell am I
oh yeah thats right the land of OZ
as good an answer as any |
|
Back to top
|
|
|
fonik
Joined: Jun 07, 2006 Posts: 3950 Location: Germany
Audio files: 23
|
|
Back to top
|
|
|
|