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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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 Posted: Fri May 09, 2008 2:42 am Post subject:
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i'll be on a short vacation on this weekend. i could take measurements on monday and post the results not before tuesday (currently no web access at home).
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cheers,
matthias
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Big Boss at fonitronik
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helitron
Joined: Feb 27, 2008
Posts: 21
Location: vienna
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| Posted: Sat May 17, 2008 7:29 am Post subject:
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ready and working! love that sound.
unfortunately it became a PS3000 resonators module, instead a PS3100 
..guess i have to live with that.
i left out the LFO since i have too many anyway and added attenuators instead. somehow the att on the first reso does not work - probably the potentiometer is dead or it has to do something with the switching to the other jacks. the other two work perfect.
anyone some ideas what it can be? before i dissasemble the whole thing to exchange the pot.
however, thanks or that great PCB!
hel
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RF
Joined: Mar 23, 2007
Posts: 1502
Location: Northern Minnesota, USA
Audio files: 28
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| Posted: Sat May 17, 2008 5:25 pm Post subject:
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| Nice looking kit, helitron! |
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scriptstyle
Joined: Jan 22, 2008
Posts: 250
Location: nj
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| Posted: Sat May 17, 2008 6:15 pm Post subject:
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| received my boards earlier in the week, awesome thanks man!! |
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v-un-v
Janitor
Joined: May 16, 2005
Posts: 8932
Location: Birmingham, England, UK
Audio files: 11
G2 patch files: 1
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| Posted: Sun May 18, 2008 1:03 am Post subject:
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| helitron wrote: | | ready and working! |
Not that it really matters that much, but you do know that you've labeled your module a PS3000, instead of a PS3100?? 
Edit; | Quote: | unfortunately it became a PS3000 resonators module, instead a PS3100
..guess i have to live with that. |
 
read the fucking post Tom before looking at the pictures first!!
_________________
ACHTUNG!
ALLES TURISTEN UND NONTEKNISCHEN LOOKENPEEPERS!
DAS KOMPUTERMASCHINE IST NICHT FÜR DER GEFINGERPOKEN UND MITTENGRABEN! ODERWISE IST EASY TO SCHNAPPEN DER SPRINGENWERK, BLOWENFUSEN UND POPPENCORKEN MIT SPITZENSPARKSEN.
IST NICHT FÜR GEWERKEN BEI DUMMKOPFEN. DER RUBBERNECKEN SIGHTSEEREN KEEPEN DAS COTTONPICKEN HÄNDER IN DAS POCKETS MUSS.
ZO RELAXEN UND WATSCHEN DER BLINKENLICHTEN. |
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helitron
Joined: Feb 27, 2008
Posts: 21
Location: vienna
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| Posted: Sun May 18, 2008 1:20 am Post subject:
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| v-un-v wrote: |
Not that it really matters that much, but you do know that you've labeled your module a PS3000, instead of a PS3100??
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yep, i am still pissed about that ... dont know what happened there, must be my numerophobia |
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v-un-v
Janitor
Joined: May 16, 2005
Posts: 8932
Location: Birmingham, England, UK
Audio files: 11
G2 patch files: 1
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| Posted: Sun May 18, 2008 3:51 am Post subject:
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well you're in good company, because i have numerophobia too!!
_________________
ACHTUNG!
ALLES TURISTEN UND NONTEKNISCHEN LOOKENPEEPERS!
DAS KOMPUTERMASCHINE IST NICHT FÜR DER GEFINGERPOKEN UND MITTENGRABEN! ODERWISE IST EASY TO SCHNAPPEN DER SPRINGENWERK, BLOWENFUSEN UND POPPENCORKEN MIT SPITZENSPARKSEN.
IST NICHT FÜR GEWERKEN BEI DUMMKOPFEN. DER RUBBERNECKEN SIGHTSEEREN KEEPEN DAS COTTONPICKEN HÄNDER IN DAS POCKETS MUSS.
ZO RELAXEN UND WATSCHEN DER BLINKENLICHTEN. |
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Photon
Joined: Mar 22, 2005
Posts: 363
Location: Boston
Audio files: 1
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| Posted: Sun May 18, 2008 10:05 am Post subject:
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Almost done! here's a couple shots to show progress. Can't wait to plug this one in. 
Thanks so much Fonik.
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ericcoleridge
Joined: Jan 16, 2007
Posts: 889
Location: NYC
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| Posted: Sun May 18, 2008 11:35 am Post subject:
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| helitron wrote: | | ready and working! love that sound. |
Wow helitron, these really loook great! Congratulations!
I really like the look of the blue panel with white letters especially. Is that a schaefer panel?
Also, are those blue knobs? If so, do you mind if I ask where you get them?
| helitron wrote: | | i left out the LFO since i have too many anyway and added attenuators instead. |
I think I'm going to leave the LFO off on mine also--unless there is some way to add CV rate or sync... |
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helitron
Joined: Feb 27, 2008
Posts: 21
Location: vienna
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| Posted: Sun May 18, 2008 1:03 pm Post subject:
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| ericcoleridge wrote: |
I really like the look of the blue panel with white letters especially. Is that a schaefer panel?
Also, are those blue knobs? If so, do you mind if I ask where you get them?
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thanks, yes thats a schaeffer pannel, the writing is just etched out and not filled with paint (it just looks white on that picture). the same goes for the knobs, theyre black and got them from "das musikding" in germany.
cheers, hel |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Sun May 18, 2008 11:54 pm Post subject:
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| helitron wrote: | ready and working! love that sound.
unfortunately it became a PS3000 resonators module, instead a PS3100
..guess i have to live with that.
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great work! great design! the blue finish looks very nice, i will try that on a project, too.
i fear i know how you ended up with a PS3000. if you used the fpd file from my site as a template you just may have copied my typo...
_________________
cheers,
matthias
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helitron
Joined: Feb 27, 2008
Posts: 21
Location: vienna
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| Posted: Mon May 19, 2008 12:06 am Post subject:
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| fonik wrote: |
i fear i know how you ended up with a PS3000. if you used the fpd file from my site as a template you just may have copied my typo... |
ha ha. yes its true, was using your template to make that frontpannel. and i was wondering why the hell i changed the writing from 3100 to 3000. but it was 3000 all the time. i should pay more attention when i am making frontpannels, that was not the only thing that went wrong this time - i had to redrill aprox all holes because i forgot to set them to the right size.
however, yes the blue finish looks really great, i didnt expect it to look that good. same goes for the green ones.
hel |
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zthee
Joined: Feb 20, 2008
Posts: 414
Location: Stockholm
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| Posted: Mon May 19, 2008 9:50 am Post subject:
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Hmm, just got it all together. But it's not working properly. It just sounds thin and the LEDs are lit all the time. I guess it's time to pull out the schematics and start checking with the scope..
Is the BC560C vs. BC560B an issue?? Just realized mine says B not C.. |
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helitron
Joined: Feb 27, 2008
Posts: 21
Location: vienna
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| Posted: Mon May 19, 2008 11:54 am Post subject:
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so, the attenuator problem is solved - i obviously had a shortage somewhere. the only thing that needs some change is the mix. the wet signal is to low compared to the dry signal.
how was that? increase or decrease value of R11 to adjust ? especially at 12V
thanks, hel |
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crashlander42
Joined: Oct 21, 2006
Posts: 292
Location: Orlando, FL (US)
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon May 19, 2008 11:02 pm Post subject:
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| zthee wrote: | Hmm, just got it all together. But it's not working properly. It just sounds thin and the LEDs are lit all the time. I guess it's time to pull out the schematics and start checking with the scope..
Is the BC560C vs. BC560B an issue?? Just realized mine says B not C.. |
sounding thin with LEDs lit, that would mean the filters actually work (bandpass), so the CV circuitry is not working properly.
it sounds like reversed transistors? i know, i know... but things happen. or maybe you mixed the BC550/BC560? just guessing.
BTW do you power the resonators from 15 or 12V?
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cheers,
matthias
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zthee
Joined: Feb 20, 2008
Posts: 414
Location: Stockholm
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| Posted: Mon May 19, 2008 11:12 pm Post subject:
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I power it from 15V.
I checked and double checked that it was the right transistor in the right place.. I even desoldered the 560 In the first stage and flipped it over, but then nothing happened at all.
I've narrowed it down to the transistor part of the CV circuit. I got triangle wave from the LFO comming in on R18 and looking with a oscilloscope I can see the triangle wave on R30 (leg towards BC550). But after the 560 it's like constantly +9V..
Checked the datasheet and the 560B has half the gain of 560C - but maybe that doesn't matter?
I wanna go home from work and fix this thing now!  |
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zthee
Joined: Feb 20, 2008
Posts: 414
Location: Stockholm
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| Posted: Wed May 21, 2008 9:42 am Post subject:
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Found it!
Different pin out on BC550! Had to install them backwards..
http://zthee.vantage.ch/PS3100.mp3 (First 4 seconds is dry, then the resonator..) |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Thu May 22, 2008 12:03 am Post subject:
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glad to hear.
| Quote: | | Different pin out on BC550! Had to install them backwards.. |
other than these?
| Quote: | | http://zthee.vantage.ch/PS3100.mp3 (First 4 seconds is dry, then the resonator..) |
nice sample. the resonation sounds very "human". what did you use as sound source? i wonder if you should attenuate the input. there are some artefacts in the low/mid range!?
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cheers,
matthias
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zthee
Joined: Feb 20, 2008
Posts: 414
Location: Stockholm
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| Posted: Thu May 22, 2008 12:27 am Post subject:
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Fonik, I put the BC550 in backwards, and now it works! I don't know if there som strange cheap chinese copies, or something else. I honestly don't care - as long as it works!
You mean artifacts in the MP3? Or in the resonator itself? I Just kinda hooked everything up to see if it worked, and might have had to much gain..
The sound source is a Micromoog. |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Thu May 22, 2008 12:42 am Post subject:
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i meant to hear some kind of clipping, i.e. at sec 16/17 or at sec 20?21 of your sample. or maybe it is just part of the source sound.
however, nice sample, as said before...
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cheers,
matthias
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whomper
Joined: Dec 15, 2007
Posts: 201
Location: Israel
Audio files: 2
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| Posted: Fri Jun 06, 2008 10:15 pm Post subject:
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Hi,
Got mine resonators working!
The sound is absolutely amazing, its such a great reward for a hard soldering night.
Thanks so much fonik for this great project. Looking forward so more projects like this.
Whomper |
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CJ Miller
Joined: Jan 07, 2007
Posts: 368
Location: 127.0.0.1
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| Posted: Tue Jun 10, 2008 5:09 am Post subject:
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I just started stuffing my PS3100 boards this weekend. Mine are the v1 PCBs from 2007. I read that the new version just has a better layout, which appears to be true. Just looking the board over the output appears to be different. No U5 on here, and a few resistor differences. Does this version not have an op-amp mixing the three resonators? If so I might use the LFO opamp as mixer, and perfboard an MS-20 style LFO. I don't know what difference it will make, but I am using polystyrene caps instead of mica, since I have them here. This first one will be 12v for a portable synth I'm making. The other two will probably be 15v rack modules.
Thanks again, Matthias! these boards are wonderful! |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Tue Jun 10, 2008 5:25 am Post subject:
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| CJ Miller wrote: | | I just started stuffing my PS3100 boards this weekend. Mine are the v1 PCBs from 2007. I read that the new version just has a better layout, which appears to be true. Just looking the board over the output appears to be different. No U5 on here, and a few resistor differences. Does this version not have an op-amp mixing the three resonators? If so I might use the LFO opamp as mixer, and perfboard an MS-20 style LFO. |
no need to do so. just take a look at the schematics. the three BPF get mixed by a OpAmp, BUT the wet/dry mix is done by a potentiometer only, no OpAmp based output buffer on the 2007 version. the 2008 board provides this output buffer (U5B). the left OpAmp (U5A) can be used for further mods (i.e. inverting the CV!?).
| Quote: | | I don't know what difference it will make, but I am using polystyrene caps instead of mica, since I have them here. |
i don't believe there would be an audible difference. as i understood it 500V rated silver micas would not lower the gain of the signal though!?
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cheers,
matthias
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Big Boss at fonitronik
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CJ Miller
Joined: Jan 07, 2007
Posts: 368
Location: 127.0.0.1
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| Posted: Sat Jun 21, 2008 3:39 pm Post subject:
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| fonik wrote: | | just take a look at the schematics. the three BPF get mixed by a OpAmp, BUT the wet/dry mix is done by a potentiometer only, no OpAmp based output buffer on the 2007 version. the 2008 board provides this output buffer (U5B). the left OpAmp (U5A) can be used for further mods (i.e. inverting the CV!?). |
I was looking at the schematic, I didn't know the name of what I was seeing. So being a buffer, does it only protect the outputs for connecting to other modules? Would there be any advantage to me adding an output buffer, or does it not make much difference?
Also, R14 and R15 from the 2007 output aren't on the 2008 pdf. Digging around I found a pdf for an older version of the board, which has these as a value of each 1.8k. Looks like my first board, the 12v version, is almost ready! |
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