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 Forum index » DIY Hardware and Software
Simmons SDS 3 - DIY?
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bubblechamber



Joined: Nov 04, 2006
Posts: 276
Location: NYC
Audio files: 1

PostPosted: Fri Oct 03, 2008 2:59 pm    Post subject: Reply with quote  Mark this post and the followings unread

just wrapping up the corrections, let a few resistors off and missed a couple connections. should be etching a prototype or 2 real soon(hopefully over the weekend/early next week). we're getting there. just taking a little longer than i had hoped. this is by far the biggest thing i've ever taken on. i'm pretty happy with it so far, just pretty complicated and i want to take my time and not screw this up.
david

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vtl5c3



Joined: Sep 08, 2006
Posts: 423
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PostPosted: Mon Nov 17, 2008 12:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

Will T4 & T5 (the two 2N5459s) need to be matched?
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Luka



Joined: Jun 29, 2007
Posts: 1002
Location: Melb.

PostPosted: Tue Nov 18, 2008 4:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

can someone list all the I/O and pot functions
i want to start designing my new midiboxMPSSDS

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Luka



Joined: Jun 29, 2007
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PostPosted: Tue Nov 18, 2008 4:21 pm    Post subject: Reply with quote  Mark this post and the followings unread

from photos/schems i can see

pots:
impact click (is this envelope amount?)
decay time
bend level (is this attack?)
effect amount (what does this do - lfo?)
and 2 more
+ channel volume slider (not sure if this is included in the single voice run)

jacks
decay kill
ext. pitch
trigger input

bend up/down switch (or is it a pot)

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johans121



Joined: Jun 19, 2007
Posts: 174
Location: Memphis, TN (USA)

PostPosted: Thu Nov 20, 2008 8:48 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm definitely in for 4!
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JohnnyBusca



Joined: Nov 27, 2008
Posts: 1
Location: Eindhoven

PostPosted: Thu Nov 27, 2008 2:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

Ola!

This is also a piece of SDS-3..
http://www.tonyblack.org/mp3/external/SDS3.mp3

This is really the best drum machine ever...

http://schleyer.org/simmons/sds3.htm
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johans121



Joined: Jun 19, 2007
Posts: 174
Location: Memphis, TN (USA)

PostPosted: Sat Dec 06, 2008 5:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

Is this project still alive?
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bubblechamber



Joined: Nov 04, 2006
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PostPosted: Sun Dec 07, 2008 4:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

johans121 wrote:
Is this project still alive?

Hi Jim, sorry for the delay.
It's still moving forward in a slightly on hold kinda way. i'm finishing up my apartment search/relocation from Los Angeles to NYC. that, along with my job, really slowed things down(i've got a new line of eurorack modules heading towards Analogue Haven right now). but i'm hoping to start testing a prototype when i get back home next weekend. i've pretty much wrapped up all my other projects and work stuff till the end of the year and i'm hoping to finish the testing and revisions in that time.
i'll be posting the results of the tests, and if we're really lucky, samples...
i'll also be posting a PCB for a eurorack sized panel for pots and jacks. if there's a lot of interest in that we can talk about doing a run of those, too. it'll be a almost completely wire-free design(jacks will need buss wire), using header rows and connectors with PCB mounted pots. so it'll be set up a lot like the Livewire AFG.
sorry for the delay, guys. sometimes life really gets in the way of plans, but i am completely committed to getting this and having it exactly like the original. mostly cause i really want about 8 of these in my cabinet.
david

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mono-poly



Joined: Jul 07, 2004
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Location: Rotterdam, Netherlands
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PostPosted: Mon Dec 08, 2008 3:53 am    Post subject: Reply with quote  Mark this post and the followings unread

A run of Eurosize panels souns interesting to me.
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neandrewthal



Joined: May 11, 2007
Posts: 672
Location: Canada

PostPosted: Fri Dec 26, 2008 10:11 am    Post subject: Reply with quote  Mark this post and the followings unread

Luka wrote:
from photos/schems i can see

pots:
impact click (is this envelope amount?)
decay time
bend level (is this attack?)
effect amount (what does this do - lfo?)
and 2 more
+ channel volume slider (not sure if this is included in the single voice run)

jacks
decay kill
ext. pitch
trigger input

bend up/down switch (or is it a pot)



Arghhhhhh, I'm trying to figure out what the essential controls are too.

Randal said:


1) LFO rate
2) Mic. level (input sensitivity)
3) Click level
4) Pitch
5) Decay
6) Bend
7) Noise /Tone mix
Cool Bend level
9) Run time (Arp. length-TIME)
10) Effects level (modulation input atten. for LFO and Arp.)
11) Channel level

But, I clearly only see 7 pots per voice, plus the fader. What was he smoking?

Can anyone explain what controls and options are available on the PCB?

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Blue Hell
Site Admin


Joined: Apr 03, 2004
Posts: 20678
Location: The Netherlands, Enschede
Audio files: 156
G2 patch files: 318

PostPosted: Fri Dec 26, 2008 5:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

neandrewthal wrote:
What was he smoking?


Some of the pots apparently Rolling Eyes

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Randaleem



Joined: May 17, 2007
Posts: 456
Location: Northern CA, USA

PostPosted: Fri Jan 02, 2009 8:22 am    Post subject: Reply with quote  Mark this post and the followings unread

Blue Hell wrote:
neandrewthal wrote:
What was he smoking?

Some of the pots apparently Rolling Eyes

Hi,

Just noticed this couple of posts.

On the original SDS3, Channel Pots From top to bottom, left to right:
1) Mic. Sensitivity
2) Impact Click
3) Pitch
4) Decay Time
5) Noise/tone Mix
6) Bend Level
7) Effect Range
8 ) Channel Level (slider)

Then there are four more pots in the effects section:
9) LFO Speed
10) Run Time (Arpeggiator)
Having individual LFO's and Arp's greatly! increases the available variety.

11, 12) Overall pitch and overall level (unnecessary with individual modules, but still useful for a group of SDS3 modules IMO)

Bubblechamber's board is different from mine; I don't know what his board supports. But these 12 pots are the original SDS3 controls.
No smoking involved. Here's a close look at an SDS3.

Kind regards, Randal


SDS3_Top.JPG
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neandrewthal



Joined: May 11, 2007
Posts: 672
Location: Canada

PostPosted: Fri Jan 02, 2009 10:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Awesome! Thanks. I've been trying for a long time to find a decent pic of that thing.
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urbanscallywag



Joined: Nov 30, 2007
Posts: 317
Location: sometimes

PostPosted: Fri Jan 02, 2009 10:43 am    Post subject: Reply with quote  Mark this post and the followings unread

Neat paintjob and rockin' skirted pots. Cool
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ickystay



Joined: Nov 15, 2006
Posts: 139
Location: Oregon

PostPosted: Thu Jan 08, 2009 9:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

Nice to see you here, Randal.
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jmejia



Joined: Mar 12, 2009
Posts: 114
Location: portland

PostPosted: Mon Apr 04, 2011 3:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

Is anyone still working on this project? I'd be happy to pick it up and continue if no-one else had bandwidth for it!
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TekniK



Joined: Aug 10, 2008
Posts: 1062

PostPosted: Mon Apr 04, 2011 9:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

jmejia wrote:
Is anyone still working on this project? I'd be happy to pick it up and continue if no-one else had bandwidth for it!


PM fonik
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fonik



Joined: Jun 07, 2006
Posts: 3760
Location: Germany
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PostPosted: Mon Apr 04, 2011 11:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

pick it up! i once did a proto PCB for testing purposes, which did not work, actually. i already handed it over to someone else one year ago... so go ahead.
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brother303



Joined: Nov 02, 2010
Posts: 139
Location: ruhr-area/germany

PostPosted: Tue Apr 05, 2011 3:10 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi,

jmejia wrote:
Is anyone still working on this project? I'd be happy to pick it up and continue if no-one else had bandwidth for it!


Coooool!

4 channels of Simmons, 2x DS7 and one MPS stuffed in a nice (euro-)case...

...awesome! party time!

Go ahead jmejia... Please
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jmejia



Joined: Mar 12, 2009
Posts: 114
Location: portland

PostPosted: Thu Jun 09, 2011 11:59 am    Post subject: Reply with quote  Mark this post and the followings unread

Quick update here - nothing too much to tell.. I'm learning kicad so I can transfer the existing design from eagle. I'm an eagle lite user - and not particularly keen on buying the full version. (The design is too big for the free eagle)

It is fairly high in my backlog pile though.. so it will happen. Just not with the speed I had initially hoped. It also looks like the majority of the work has already been done.. so likely just needs a prototype, troubleshoot, prototype, troubleshoot kind of deal.
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diablojoy



Joined: Sep 07, 2008
Posts: 796
Location: melbourne australia
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PostPosted: Thu Jun 09, 2011 4:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

Smile yay good to see someone is still working on this
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fonik



Joined: Jun 07, 2006
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PostPosted: Thu Jun 09, 2011 11:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

jmejia wrote:
... so likely just needs a prototype, troubleshoot, prototype, troubleshoot kind of deal.

or breadboard it first?
just my 2 pence

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jmejia



Joined: Mar 12, 2009
Posts: 114
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PostPosted: Fri Jun 10, 2011 10:39 am    Post subject: Reply with quote  Mark this post and the followings unread

fonik wrote:

or breadboard it first?
just my 2 pence


Yeah... my breadboarding skills aren't super awesome - and I have access to cheap rapid pcb prototyping through a local group I'm involved with here in Portland. So I tend to skip the breadboard step. That would be a whole seperate set of variables to troubleshoot for me! I should definitely get some practice in sometime though - I know I'd be better at all this stuff if I did!
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vout



Joined: Oct 06, 2007
Posts: 33
Location: scotland

PostPosted: Fri Oct 26, 2012 3:28 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi,

Any update on this project? I would be very interested in a set of boards.

Cheers, vout
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Moogah



Joined: Dec 26, 2007
Posts: 26
Location: USA

PostPosted: Fri Oct 26, 2012 7:41 am    Post subject: Reply with quote  Mark this post and the followings unread

Been watching this with interest since the beginning too. Seems like the circuit is a bit tricky to get working reliably!

I captured the schematic in eagle a while ago (the first time this thread went dead). If nobody else is still working on this I'd be glad to do a layout and get a prototype made and see if I have better luck!
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