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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Sun Nov 23, 2008 1:44 am Post subject:
Elby - Pixie!!!! anyone else? |
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anyone else building this? Im currently building one and it sure would be great to talk to others how have built or is building one of these. I know someone here is getting ready to from another post I read. _________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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State Machine
Janitor
Joined: Apr 17, 2006 Posts: 2809 Location: New York
Audio files: 24
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Posted: Sun Nov 23, 2008 8:44 pm Post subject:
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I am not building one but it sure looks interesting to me. The MIDI controlled dual DCO topology, using a processor not seen very much around these parts, is refreshing to see. I would like to see more of this project as you go through the build.
Nice !
Bill |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Sun Nov 23, 2008 9:30 pm Post subject:
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I just got the midi interface together and working today. I had a bad 2n3904 Fairchild tranny from mouser that had me stumped for a while. 2nd bad batch of Fairchild trannies I got!
Elby is very good about responding to emails. Just wanted to toss that in. _________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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State Machine
Janitor
Joined: Apr 17, 2006 Posts: 2809 Location: New York
Audio files: 24
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Posted: Mon Nov 24, 2008 5:29 pm Post subject:
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Quote: | I just got the midi interface together and working today. I had a bad 2n3904 Fairchild tranny from mouser that had me stumped for a while. 2nd bad batch of Fairchild trannies I got!
Elby is very good about responding to emails. Just wanted to toss that in | .
Unusual to get bad transistors but sure, it can stump you for a bit since it is very unexpected
I would really like to hear some sounds from this synthesizer when your done. I have been tossing around lots of ideas of my own design but am torn between using a fast Microcontroller or using an FPGA for my oscillators. I could also use a hybrid design and use an MCU for control, interfacing, and MIDI and use the FPGA for multiple oscillators.
This is a cool project your working on.
Also, good to know Elby has good customer service to
Bill |
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bugbrand
Joined: Nov 27, 2005 Posts: 846 Location: Bristol, UK
Audio files: 1
G2 patch files: 1
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jochem
Joined: Aug 10, 2008 Posts: 56 Location: groningen
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Posted: Sat Nov 29, 2008 1:25 am Post subject:
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I would love to build one of these. The sound should be insane.
Unfortunately it's too expensive and difficult for me right now.
Would like to see some of your progress |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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etaoin
Joined: Jun 30, 2005 Posts: 761 Location: Utrecht, NL
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Posted: Wed Feb 04, 2009 12:46 am Post subject:
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Ypsi_Synth wrote: | I dont think this jpeg will show up to good |
The jpeg seems to have warped into a bmp, even _________________ http://www.casia.org/modular/ |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Sun Feb 15, 2009 3:42 am Post subject:
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Got it wired up. The rats nest is temp. It will be pretty when boxed.
It draws 120 mWatts.
Man, I have never heard a Wasp filter in person, and this dual filter is the cats azz.... IT SOUND AMAZING!!
Im still working out a few little bugs but its going good. Now lets tackle this filter 3.....
5 filter modes!!!!
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_________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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jochem
Joined: Aug 10, 2008 Posts: 56 Location: groningen
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Posted: Sun Feb 15, 2009 4:18 am Post subject:
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Looks messy indeed, but i guess thats hard to avoid considering the amount of pots you have. No problems on the PCB front?
I would be interested to know how much money you spent on parts.
Good luck with the rest if the wiring |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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cyberheater
Joined: Jun 03, 2008 Posts: 12 Location: Scotland
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Posted: Sun Feb 15, 2009 1:19 pm Post subject:
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Ypsi_Synth wrote: | After a long brake im back to building it. I dont think this jpeg will show up to good but it will give an idea of the layout.
I think I may build a case with keyboard like the minimoog style look for it. |
There's a typo on the VCA ENV generator. Just to let you know before you spend money getting it printed. |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Sun Feb 15, 2009 3:28 pm Post subject:
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cyberheater wrote: | Ypsi_Synth wrote: | After a long brake im back to building it. I dont think this jpeg will show up to good but it will give an idea of the layout.
I think I may build a case with keyboard like the minimoog style look for it. |
There's a typo on the VCA ENV generator. Just to let you know before you spend money getting it printed. |
Thanks.. There are a few others of them I found on it too... its the prototype _________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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joshco
Joined: Nov 14, 2008 Posts: 55 Location: germany
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Posted: Mon Feb 16, 2009 2:51 am Post subject:
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nice work, looking forward to some sound samples... |
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cyberheater
Joined: Jun 03, 2008 Posts: 12 Location: Scotland
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Posted: Mon Feb 16, 2009 3:46 am Post subject:
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Ypsi_Synth wrote: | cyberheater wrote: | Ypsi_Synth wrote: | After a long brake im back to building it. I dont think this jpeg will show up to good but it will give an idea of the layout.
I think I may build a case with keyboard like the minimoog style look for it. |
There's a typo on the VCA ENV generator. Just to let you know before you spend money getting it printed. |
I only saw one. You've got better eyes then I have...
Thanks.. There are a few others of them I found on it too... its the prototype |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Mon Feb 16, 2009 4:33 am Post subject:
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Well... a few things, there is a bit of processor noise? (maybe) in the output, nothing horrible but you can hear it a bit at times depending on the filter setting. It can be eq'ed out to an extent.
Then VCF 3 if not working right. mostly caused but the circuit only getting 5 volts. Not sure how im going to get around this one... maybe leave it out all together?
then the LFO does not modulate the pitch very smoothly. Maybe its just the character of this synth.. yah, thats it _________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Mon Feb 16, 2009 7:27 am Post subject:
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jochem wrote: | Looks messy indeed, but i guess thats hard to avoid considering the amount of pots you have. No problems on the PCB front?
I would be interested to know how much money you spent on parts.
Good luck with the rest if the wiring |
I have all the parts to make another.... I don't know if I have it in me to make another.... want to buy the parts? _________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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jochem
Joined: Aug 10, 2008 Posts: 56 Location: groningen
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Posted: Mon Feb 16, 2009 7:33 am Post subject:
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Thanks Ypsi,
Sounds tempting, but i don't have a bundle of cash right now and need to order parts for my MB808 first.
I'm sure there are more people interested in this project. Maybe selling it as a complete kit (with PCB)?
cheers. |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Mon Feb 16, 2009 8:54 am Post subject:
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jochem wrote: | Thanks Ypsi,
Sounds tempting, but i don't have a bundle of cash right now and need to order parts for my MB808 first.
I'm sure there are more people interested in this project. Maybe selling it as a complete kit (with PCB)?
cheers. |
yep.. all... Id sell it all for 200 shipped.. if not I can build it some rainy day _________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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Posted: Tue Feb 17, 2009 1:38 am Post subject:
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hear is the noise issue We're working on right now... I have some capacitors to try in the circuit (when I get them from mouser). I hope they can clear up the noise.... but I think it is bleed through from the Pulse (from the m16c microprocessor) that controls the DCO's because you can hear it track as I move up and down the keyboard.
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pixie noise.wav |
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Hear you can hear it as the filter is opened up and lowered. |
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pixie noise 2.mp3 |
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_________________ http://ypsisynth.blogspot.com/
http://www.myspace.com/ypsisynth |
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Ypsi_Synth
Joined: Nov 08, 2008 Posts: 44 Location: Ypsilanti Mi
Audio files: 4
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