[PCBs] NeinOhNein KICK -- a 909 kick clone you can build!

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What 909 or 808 drum should I offer a PCB for, next?

Poll ended at Tue Sep 25, 2012 9:21 pm

808 Cowbell
6
10%
909 Snare
27
44%
909 Clap
18
30%
909 Rimshot
10
16%
 
Total votes: 61

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raisinbag
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Post by raisinbag » Sun Mar 17, 2013 4:24 pm

Ok give er a whirl. I have a 2k here. Next up will be cv for pitch. Can you say VaCTrOL. :yay:

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dmitri
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Post by dmitri » Wed Apr 03, 2013 3:45 pm

Trivial question...
I can use the MCI 4006 Bride chamber sells for this kick drum ?
I have a bunch but mouser has em on back order.
should be cool no ?

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hexinverter
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Post by hexinverter » Wed Apr 03, 2013 4:22 pm

dmitri wrote:Trivial question...
I can use the MCI 4006 Bride chamber sells for this kick drum ?
I have a bunch but mouser has em on back order.
should be cool no ?
That should work yes!
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LeFreq
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Post by LeFreq » Wed Apr 03, 2013 5:12 pm

Well... I'm gonna build one of these next. This will be my first PCB only, no faceplate/panel build for eurorack. So, where do you guys get your panels made?

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raisinbag
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Post by raisinbag » Wed Apr 03, 2013 9:17 pm

@ Dmitri, I used the MC14006 for my build and it seems to work just fine. I'm gonna pop in a NTE at some point for shits and giggles to compare (when I drag my ass to the city to grab one)

@LeFreq, I built my own panel for this, used aluminum and acid etched it. I believe there are ready made Euro Panels for sale at Resynthesis (Ok just went and looked while typing so here is link) http://www.bigbluewave.co.uk/resynthesi ... uencer.htm

Build was no too difficult. A bit of wiring but not so bad and I did all the mods (except volume control on the noise out). IT sounds FU&K!NK STELLAR! :nana:

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hexinverter
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Post by hexinverter » Wed Apr 03, 2013 11:26 pm

raisinbag wrote:@ Dmitri, I used the MC14006 for my build and it seems to work just fine. I'm gonna pop in a NTE at some point for shits and giggles to compare (when I drag my ass to the city to grab one)

@LeFreq, I built my own panel for this, used aluminum and acid etched it. I believe there are ready made Euro Panels for sale at Resynthesis (Ok just went and looked while typing so here is link) http://www.bigbluewave.co.uk/resynthesi ... uencer.htm

Build was no too difficult. A bit of wiring but not so bad and I did all the mods (except volume control on the noise out). IT sounds FU&K!NK STELLAR! :nana:
Hey now! You didn't post a photo of yours now did you!? I wanna see :D (no, I don't mean I want to see your "raisinbag" LOL)
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mcop
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Post by mcop » Thu Apr 04, 2013 12:29 am

Here's mine. Every mod I could find added and this drum is awesome. Thanks again Hex. The plywood panel is temporary to test my layout until I get one laser cut.
Image

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hexinverter
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Post by hexinverter » Thu Apr 04, 2013 1:04 am

mcop wrote:Here's mine. Every mod I could find added and this drum is awesome. Thanks again Hex. The plywood panel is temporary to test my layout until I get one laser cut.
That's awesome! Nice work :D love the plywood!!!
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raisinbag
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Post by raisinbag » Thu Apr 04, 2013 8:43 am

hexinverter wrote:
raisinbag wrote:@ Dmitri, I used the MC14006 for my build and it seems to work just fine. I'm gonna pop in a NTE at some point for shits and giggles to compare (when I drag my ass to the city to grab one)

@LeFreq, I built my own panel for this, used aluminum and acid etched it. I believe there are ready made Euro Panels for sale at Resynthesis (Ok just went and looked while typing so here is link) http://www.bigbluewave.co.uk/resynthesi ... uencer.htm

Build was no too difficult. A bit of wiring but not so bad and I did all the mods (except volume control on the noise out). IT sounds FU&K!NK STELLAR! :nana:
Hey now! You didn't post a photo of yours now did you!? I wanna see :D (no, I don't mean I want to see your "raisinbag" LOL)
Here ya go, no bags were hurt in the making of this panel.

Hey Mcop, that plywood looks cool!
Attachments
bassDrm.jpg
bassDrm.jpg (121.93 KiB) Viewed 348 times

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hexinverter
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Post by hexinverter » Thu Apr 04, 2013 10:31 am

raisinbag wrote:Here ya go, no bags were hurt in the making of this panel.

Hey Mcop, that plywood looks cool!
That looks great Mr. Bag! Nice one :) :tu:
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mcop
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Post by mcop » Thu Apr 04, 2013 11:11 am

Thanks guys, and nice build yourself raisinbag.

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LeFreq
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Post by LeFreq » Mon Apr 08, 2013 2:20 pm

raisinbag wrote: @LeFreq, I built my own panel for this, used aluminum and acid etched it. I believe there are ready made Euro Panels for sale at Resynthesis (Ok just went and looked while typing so here is link) http://www.bigbluewave.co.uk/resynthesi ... uencer.htm
Thanks!!

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paulstone
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Post by paulstone » Mon Apr 08, 2013 2:34 pm

mcop wrote:Thanks guys, and nice build yourself raisinbag.
hi mcop i see your build have a more modifications , tune depth and two switch :hmm:
can you share your mod ?

thx !

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consumed
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Post by consumed » Tue Apr 09, 2013 12:09 am

sorry for the rookie question--is the 'decay' for amplitude, and the 'tune decay' for pitch? i assume that CCW= shorter (amplitude and quicker pitch sweep)?

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mcop
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Post by mcop » Tue Apr 09, 2013 12:23 am

@ paulstone - will get back to you with details when I get back from work later once I've checked my notes.

@ consumed - Decay is the standard decay of the voice. Tune Decay - is how fast the frequency of the voice bends. If I have time I'll post a sound sample later.

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Post by mcop » Tue Apr 09, 2013 4:26 pm

Here's the modifications I made to the NeinOhNein kick drum

All modifications are based on modifications made by Colin Fraser detailed here : http://www.colinfraser.com/tr909/909mods/909mods.htm
CY's modifications listed here: http://www.cykong.com/Synths/Roland%20T ... TR-909.htm
and the modifications recommended in Hex's build notes.

The Drive and Pitch mods are as described by Hex's notes except I used a 100k pot instead of 47k for the pitch mod.

The decay mod is also as described in Hex's notes except I added a switch to switch the extra capacitor in and out.

Image

Here's a modified diagram showing what I did to incorporate the the Thump mod from CY's page and the extended tune control and tune depth mods from Colin Fraser.

Here's Hex's original diagram followed by the same area of the circuit showing all the modifications.

Image
Image

The two additional 1M resistors were added to the back of the board and most of the other components mounted on the switch.

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mcop
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Post by mcop » Tue Apr 09, 2013 4:55 pm

Here's a recording of the tune decay and decay mods.

http://www.mcop.co.uk/wp-media/decay-and-tune-decay.mp3

Standard decay with full tune decay,
short extended decay with full tune decay,
long extended decay with full tune decay,
long extended decay with minimum tune decay,
short extended decay with minimum tune decay.

Not the best recording sorry, done a bit quickly :)

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paulstone
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Post by paulstone » Wed Apr 10, 2013 1:18 am

mcop wrote:Here's a recording of the tune decay and decay mods.

http://www.mcop.co.uk/wp-media/decay-and-tune-decay.mp3

Standard decay with full tune decay,
short extended decay with full tune decay,
long extended decay with full tune decay,
long extended decay with minimum tune decay,
short extended decay with minimum tune decay.

Not the best recording sorry, done a bit quickly :)
thank you mcop
very well :tu:

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dmitri
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Post by dmitri » Wed Apr 10, 2013 6:52 pm

Image

It aint pretty but it works in time for this weekend ! I have 3 more so I will get a nice panel soon....

Knocking down the )(*&^%$#@!!!!!

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woodster
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Post by woodster » Sun May 12, 2013 12:28 pm

Happy Days,

Just ordered the NeinOhNein PCB from hexinverter, plus the Faceplate from Re:Synthesis.
Can't wait to get me sum oompth

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hexinverter
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Post by hexinverter » Sun May 12, 2013 12:44 pm

woodster wrote:Happy Days,

Just ordered the NeinOhNein PCB from hexinverter, plus the Faceplate from Re:Synthesis.
Can't wait to get me sum oompth
UNT-ss! UNT-ss! :banana: :banana:
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woodster
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Post by woodster » Sun May 12, 2013 12:54 pm

Boomtishclaptish :tu:

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mDang
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Post by mDang » Wed May 22, 2013 4:26 pm

Is there a way to add a cv in to the pitch ?
It would be great to control it with a sequencer !
Thanks
Analogeeks

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hexinverter
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Post by hexinverter » Wed May 22, 2013 5:29 pm

mDang wrote:Is there a way to add a cv in to the pitch ?
It would be great to control it with a sequencer !
Thanks
There is no real easy way to do that, though, you could start by trying to inject a signal at pin 2 of IC1. That is where the pitch envelope appears so it must be voltage controlled.

You will have to add a resistor to pin 2 of IC1. Start with 330k since it matches the pitch envelope resistor. If it doesn't get the response you want, try lowering the value of resistor to make it change the pitch MORE, and try raising the resistor value to make the CV change the pitch LESS.

I am not responsible if you blow it up. I have not at all analysed the circuit and cannot tell you what might happen. This is only a suggestion :tu:
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Post by mDang » Thu May 23, 2013 6:41 am

Ok, thanks stacy.
I don't have the electronic knowledge to do that alone at the moment,
i just checked if someone already done this mod.
Analogeeks

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