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sascha neudeck
Joined: Feb 19, 2007
Posts: 10
Location: vienna
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endif
Joined: Jul 14, 2006
Posts: 138
Location: Reno, NV
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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 Posted: Sat Jul 28, 2007 4:55 am Post subject:
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| ENDIF wrote: | | How many units reserved would it take to make a new run worth while? |
40 would be worth the effort. but before doing a 2nd run i wonder if i shouldn't improve the CV circuitry... if one really wants to use it as a oscillator i should, i guess. on the other hand it's only in tune for about 4 octaves, so would it be worth the trouble?
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matthias
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b-funk
Joined: Jul 17, 2007
Posts: 193
Location: Berlin
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| Posted: Sat Jul 28, 2007 9:24 am Post subject:
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well, i don´t know if it is really necessary to use it as oscillator...
but i´m definitly interested in purchasing at least 4 pcb´s if you do a second run. i breadboarded your circuit some time ago and, well, i like it  |
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SolderSmoke
Joined: May 21, 2007
Posts: 15
Location: Sweden
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| Posted: Tue Jul 31, 2007 4:43 am Post subject:
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Count me in for two PCB´s
SolderSmoke |
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Twin-X
Joined: Jul 12, 2007
Posts: 12
Location: Netherlands
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| Posted: Wed Aug 01, 2007 5:06 am Post subject:
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| Count me in also for 2 pieces if a second run is happening. |
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RF
Joined: Mar 23, 2007
Posts: 1502
Location: Northern Minnesota, USA
Audio files: 28
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| Posted: Wed Aug 01, 2007 6:20 am Post subject:
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| I'd go for two as well. |
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prophei
Joined: Jan 27, 2007
Posts: 234
Location: san francisco, ca
Audio files: 4
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| Posted: Wed Aug 01, 2007 6:47 am Post subject:
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| i'd likely go for a few more as well =] |
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kryptic
Joined: Feb 16, 2007
Posts: 40
Location: somewhere
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| Posted: Wed Aug 01, 2007 4:42 pm Post subject:
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| I'd be in for 2 or 3. |
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kenl666
Joined: May 12, 2004
Posts: 66
Location: Pacific Northwest
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| Posted: Thu Aug 02, 2007 9:50 am Post subject:
count me in |
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| two pieces will do... |
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moosapotamus
Joined: May 11, 2007
Posts: 113
Location: New Hampshire USA
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| Posted: Thu Aug 02, 2007 10:00 am Post subject:
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I'd go for (2) two.
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"I tend to like anything that I think sounds good" |
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Doug Wellington
Joined: Jul 11, 2007
Posts: 4
Location: Tucson, AZ, USA
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5
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EdisonRex
Site Admin
Joined: Mar 07, 2007
Posts: 4579
Location: London, UK
Audio files: 172
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| Posted: Sun Oct 21, 2007 3:21 pm Post subject:
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Nice to see someone else's build, even when mine is working, just to make sure I am not an ass. I used ceramics up in the top left btw, and i didn't manage to find an 850pF capacitor so I just used a .1uF and it works too.
Anyway, yeah, the power point on the very right of your picture better be +V or you'll know about it fast.
Interesting point you make. I didn't use those connectors on my boards.
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5
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| Posted: Sun Oct 21, 2007 4:09 pm Post subject:
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thanks for the answer,
so the print for the Motm connector is definitly wrong
( ----> that line that simbolises the back of the connecter )
About the Cap:
i asked fonik about that ( i think in the German synthesizerforum. I couldn't find it now )
I have marked my Data sheet with silver mica for C5.
I think fonik told me that it makes sense to take a silver mica.
I think styroflex is recommended.
Maybe it just affects the 1V/ Okt temperatur stability. I don't remember
btw.: the Value is 820pF |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Sun Oct 21, 2007 10:45 pm Post subject:
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| Funky40 wrote: | Hi,
I'm in the final stage of building the fonik SSM from the first run.
for me it seems that the Motm Power connecter has to be tourned around for 180°.
Can somebody verify this please ? |
you are right. the connector has to be rotated by 180°. it has been corrected on the 2nd run PCB.
BTW i eventually changed the wiring of the cutoff pot (as discussed before). i hooked it up between two 47k resistors connected to the power rails to have a wide control range...
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matthias
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Big Boss at fonitronik
Tech Buddy at Random*Source |
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5
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| Posted: Mon Oct 22, 2007 10:35 am Post subject:
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Up and running
ofcourse with multiple outputs 
And i changed the pots to the left, so i have some Space for the solderside of the Board( cos of shortenings when taking modules in and out)
| Quote: | | BTW i eventually changed the wiring of the cutoff pot (as discussed before). i hooked it up between two 47k resistors connected to the power rails to have a wide control range... |
Yes, the Cutoff range is far to small.
are the detailed infos for the modification in this thread here ?
and i prefer a much bigger CV2 Range.
Does i have to make R23 smaller to do so ?
what value for a 100% increased range ?
btw.:
i have a log Pot for the audio input.
That was a fault. i think linear will be better.
The sound is great.
the Output levels seems bigger than on the dopefer SSM.
the Resonance behave seems to be very different.
Maybe there should be also some adjusting................... ??
the A105 has much more reaction when increasing the Resonance,
but it also thin out the sound on deep to mid Frequenzys.
Your one fonik don't thin out, but also don't give that much effect in my modul.
Thanks Fonik for that very cool module.
btw.: the 1V/OKt is very good for exactly 3 oktaves. Cool |
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Peake
Joined: Jun 29, 2007
Posts: 1113
Location: Loss Angeles
Audio files: 3
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| Posted: Mon Oct 22, 2007 12:08 pm Post subject:
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I'm enjoying stuffing my rev1 version, thanks for the project!
I wish I had the money to engage this idea: build 8 of them for a hardware sampler output beautifier, as the SSMs and CEMs were used in the SP drums, samplers, etc. but not the more modern ones (Emulator IV). And/or to sweeten up Pro Tools outputs into analog mixing.
Any digital output is sweetened simply by passing through such a filter, even with Fc to maximum and no resonance. |
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elektro80
Site Admin
Joined: Mar 25, 2003
Posts: 21959
Location: Norway
Audio files: 14
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| Posted: Mon Oct 22, 2007 12:10 pm Post subject:
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 I´m very pleased now that I hypnotized myself into getting 8 cards. 
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon Oct 22, 2007 1:36 pm Post subject:
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| Funky40 wrote: | | Quote: | | BTW i eventually changed the wiring of the cutoff pot (as discussed before). i hooked it up between two 47k resistors connected to the power rails to have a wide control range... |
and i prefer a much bigger CV2 Range.
Does i have to make R23 smaller to do so?
what value for a 100% increased range? |
yes - half the value? (i am not that good in maths, try it)
for cutoff pot: just connect the pin that is supposed to go to ground to a 47k resistor and then to -15V somewhere on the board. this way you get a wider range down to subaudio.
| Quote: | the Resonance behave seems to be very different.
Maybe there should be also some adjusting................... ??
the A105 has much more reaction when increasing the Resonance,
but it also thin out the sound on deep to mid Frequenzys.
Your one fonik don't thin out, but also don't give that much effect in my modul. |
i am not that experienced like dieter! i am still learning. however there is a trimmer to set the self oscillation. how could resonance sound different in this special case? the resonance itself is not an external circuitry, it is inside the IC. only the res control is external and is nothing else but applying a cv to the appropriate pin of the IC!? when the filter starts to self oscillate, it starts to oscillate!? maybe dieters module uses different values for the capacitors C5-C8 of the IC? that would affect the sound, i guess. you just would have to keep the ratio. maybe someone could build a couple using different values?
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matthias
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Last edited by fonik on Mon Oct 22, 2007 1:38 pm; edited 1 time in total |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon Oct 22, 2007 1:37 pm Post subject:
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BTW i still have some of the 2nd run PCBs available (did not sell all advance orders)...
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matthias
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ktronik
Joined: Oct 22, 2007
Posts: 4
Location: Australia
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| Posted: Mon Oct 22, 2007 1:56 pm Post subject:
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Hi, I am a newby & would like some PCB if any left...
TIA
best
Ktronik |
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5
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| Posted: Mon Oct 22, 2007 4:17 pm Post subject:
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ok, mods are done
= R23 for the CV2 Range is now 62K. Maybe something around 80K would be better, but for me i think it is fine.
100K is to conservative in my Opinion.
the cutoff Range is changed too.
I'm not shure, but maybe it might be a littlebit bigger for me.
That means that when i set the Trimmer T2 so that the Filter closes totally when cutoff is closed,
i'm not shure if the filter opens totally.
so i set it that i'm shure the Filter will open full, but it closes not to 100%.
The Sound is now WOW
Resonace behave has changed now.
In or output level is definitly bigger than on the doepfer, and thats very fine so !
SSM Rocks !
@Fonik
you get PM
thanks for the help Matthias
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon Oct 22, 2007 10:43 pm Post subject:
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| ktronik wrote: | Hi, I am a newby & would like some PCB if any left...
TIA
best
Ktronik |
 to the e-m-forum, ktronik
and check your PMs...
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matthias
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loss1234
Joined: Jul 24, 2007
Posts: 1536
Location: nyc
Audio files: 41
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