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

hexinverter · Post by **hexinverter** » Thu May 23, 2013 11:14 am

mDang wrote: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.

No problem! Well I mean it could be fun to learn

Haha don't be put off by my disclaimer. It could actually be an easy mod if it works out nicely.

raisinbag · Post by **raisinbag** » Thu May 23, 2013 11:19 am

I'm sure you could do with a vactrol. If I grab a vac board from the chamber I will try it out one day. I love sweeping the pitch with the knob. It sounds really cool through a delay!!!!!!!

hexinverter · Post by **hexinverter** » Thu May 23, 2013 11:31 am

raisinbag wrote:I'm sure you could do with a vactrol. If I grab a vac board from the chamber I will try it out one day. I love sweeping the pitch with the knob. It sounds really cool through a delay!!!!!!!

There shouldn't be any need though I don't think ^__^ The core of the kick is a VCO! It should just be a matter of tuning some stuff around injecting another voltage at pin2 of the TL074 like I said

mDang · Post by **mDang** » Fri May 24, 2013 4:08 pm

Ok, so to be sure i understand correctly :
I connect the signal out of my jack to the resistor and the resistor to the pin2 of the ic1.
Is it right ?

hexinverter · Post by **hexinverter** » Fri May 24, 2013 6:05 pm

mDang wrote:Ok, so to be sure i understand correctly :
I connect the signal out of my jack to the resistor and the resistor to the pin2 of the ic1.
Is it right ?

That would be how I would start trying to inject CV, yes

analogdata · Post by **analogdata** » Sun Jun 02, 2013 6:12 am

I'm losing faith here. I got some projects not functioning and one of them is the neinohnein kick...

If anyone has any idea what could be wrong I'd be greatful.

Have I soldered the erthenvar lugs on the jacks ok?
Can't find any broken or cold solder joints.
sorry 'bout large pictures...

rosch · Post by **rosch** » Sun Jun 02, 2013 6:56 am

the erthenvar jacks look like you've connected the signal pins and the switched pins.
however the ground pins are the ones on both sides.
you can easily check jacks by plugging in and measuring continuity (beeper)
between the other side of the cable and the pins to see what is connected where.

hexinverter · Post by **hexinverter** » Sun Jun 02, 2013 9:26 am

Yuppers, those jacks are soldered wrong. The grounds should be going to one of the pins that attach to the metal casing of the jack; not the switched pins like you've connected them to.

When in doubt, look at where the pins actually connect to while you plug a jack in. It's easy to do since you can actually see the cable plugged into the jack on these jacks

Best of luck!

analogdata · Post by **analogdata** » Tue Jun 04, 2013 11:54 pm

Thank you!
It's alive. Another problem now: even at its lowest pitch it sounds more like a mid tom. No deep boom. The pitch pot is a B50K.
:(

hexinverter · Post by **hexinverter** » Wed Jun 05, 2013 7:12 am

analogdata wrote:Thank you!
It's alive. Another problem now: even at its lowest pitch it sounds more like a mid tom. No deep boom. The pitch pot is a B50K.
:(

Hmm, try a B100k instead of the B50k. That should fix it

analogdata · Post by **analogdata** » Thu Jun 06, 2013 4:54 am

swapped to a B100K, but now pitch is all gone. No tone just a snappy click.

fawlty nein kick

hexinverter · Post by **hexinverter** » Thu Jun 06, 2013 6:47 am

analogdata wrote:swapped to a B100K, but now pitch is all gone. No tone just a snappy click.

fawlty nein kick

Hmm, I would double and triple check your wiring then. If you don't turn up an error there, inspect the PCB over again. There are lots of parts to accidentally install wrong on this PCB!

Good luck!

rosch · Post by **rosch** » Mon Jul 08, 2013 6:17 pm

would be good to remove the HUGE pics after the issue was solved huh?

anyway where should i grab the noise from when distributing behind panel to the other nein oh nein modules?
my guess would be the pad for the optional buffered noise out, or is the RAW pad ok too?

btw my kick works perfectly again now after replacing all ICs (and all transistors to be sure)
and i did the mods at last now that i have the panels.
killer module really

hexinverter · Post by **hexinverter** » Mon Jul 08, 2013 7:41 pm

rosch wrote:would be good to remove the HUGE pics after the issue was solved huh?

anyway where should i grab the noise from when distributing behind panel to the other nein oh nein modules?
my guess would be the pad for the optional buffered noise out, or is the RAW pad ok too?

btw my kick works perfectly again now after replacing all ICs (and all transistors to be sure)
and i did the mods at last now that i have the panels.
killer module really

Nice man!

Haha yeah those are some damn big images.

To answer your query, when connecting the noise to:

Other NeinOhNein modules? ---> Use the RAW output
Other modules that are not NeinOhNein? ---> Use the BUFFERED output!!!

rosch · Post by **rosch** » Mon Jul 08, 2013 7:44 pm

cool thanks,
so the RAW out has enough juice for the whole neinohnein party?

oozitron · Post by **oozitron** » Mon Jul 08, 2013 7:54 pm

My trigger outs on my 505 won't fire my 909 Kick... they must be too weak of a pulse. (they'll trigger other stuff, and other things trigger the 909 fine)

Is there a resistor somewhere that I could swap to make the trigger in be a bit more sensitive?

Drew

hexinverter · Post by **hexinverter** » Mon Jul 08, 2013 9:18 pm

rosch wrote:cool thanks,
so the RAW out has enough juice for the whole neinohnein party?

Yes it does! Theoretically, you could connect hundreds of other NeinOhNein modules to it

hexinverter · Post by **hexinverter** » Mon Jul 08, 2013 9:20 pm

oozitron wrote:My trigger outs on my 505 won't fire my 909 Kick... they must be too weak of a pulse. (they'll trigger other stuff, and other things trigger the 909 fine)

Is there a resistor somewhere that I could swap to make the trigger in be a bit more sensitive?

Drew

Hmmm. Can you confirm that the kick fires with other inputs? Try using an envelope generator or something else just to test that it does indeed work with something.

The module should be triggering from about 3V.

You can change R71 to 10k or so to lower the threshold to about 1V.

You can lower it even further by going below 10k if that doesn't work.

mikecameron · Post by **mikecameron** » Mon Jul 08, 2013 11:46 pm

i've noticed that the length of the trigger has a definite impact on the sound of the kick. If the pulses are too short, the kick sounds thin and weak.

mcop · Post by **mcop** » Tue Jul 09, 2013 12:22 am

mikecameron wrote:i've noticed that the length of the trigger has a definite impact on the sound of the kick. If the pulses are too short, the kick sounds thin and weak.

I don't think this is a bad thing.

Trigger velocity (level) effects the voice as well which is great. Been using a pulse stretcher and an attenuator with mine to give even more possibilities sound wise. But then I never wanted it to just sound like a classic 909.

oozitron · Post by **oozitron** » Tue Jul 09, 2013 6:20 am

hexinverter wrote: Hmmm. Can you confirm that the kick fires with other inputs? Try using an envelope generator or something else just to test that it does indeed work with something.

The module should be triggering from about 3V.

You can change R71 to 10k or so to lower the threshold to about 1V.

You can lower it even further by going below 10k if that doesn't work.

Yeah it works fine with other triggers/gates. I think the 505 trigger outs are just too weak. Will play with resistors tonight :-)

Drew

hexinverter · Post by **hexinverter** » Tue Jul 09, 2013 7:28 am

mikecameron wrote:i've noticed that the length of the trigger has a definite impact on the sound of the kick. If the pulses are too short, the kick sounds thin and weak.

Basically, if you want it to sound identical to the 909, you have to use a trigger pulse that is the exact same amplitude and length as the 909. I believe the trigger pulse is 4mS in the service manual. In the 909, the pulse drives the kick directly. In this replica, there is a gate -> trig on the input for interfacing to the modular world, so, you may have to play with different trigger shapes to get the exact sound you like

shiftr · Post by **shiftr** » Sun Dec 01, 2013 5:35 pm

I build the NohN kick .. very nice project. It's my second DIY module after the jupiter storm. I did all the mods.
At first i had a bit problems with it but they disappeared after i cleaned the PCB..
I also made an extra mod.
Replace R40 for 100 Ohm. You'll get an even shorter kick or just a click.
I'm going to make a frontpanel from plexi (black lasermax).
If somebody wants one or just the design let me know..

hexinverter · Post by **hexinverter** » Sun Dec 01, 2013 9:01 pm

shiftr wrote:I build the NohN kick .. very nice project. It's my second DIY module after the jupiter storm. I did all the mods.
At first i had a bit problems with it but they disappeared after i cleaned the PCB..
I also made an extra mod.
Replace R40 for 100 Ohm. You'll get an even shorter kick or just a click.
I'm going to make a frontpanel from plexi (black lasermax).
If somebody wants one or just the design let me know..

Nice one! That looks great

echoplex · Post by **echoplex** » Mon Jan 20, 2014 12:44 pm

will there be another batch someday?..maybee?

MUFF WIGGLER

MUFF WIGGLER

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

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