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diablojoy
Joined: Sep 07, 2008 Posts: 809 Location: melbourne australia
Audio files: 11
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Posted: Mon Nov 09, 2009 6:11 am Post subject:
Board for rays 2N5457 WSG modifier cct Subject description: CV control of WSG osc's |
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thanks to ray wilson for putting up the original cct's
recently I drew up a board to enable up to 8 of the wsg functions to be
voltage controlled ,i finally got to test it on the weekend and happy to say it is working fine
i have all six oscilators plus the 2 mix pots wired up
the board also has the gate to filter freq mod for both responses switchable .i used a SPDT center off toggle .
basically this board just gets wired between the WSG board and the pots
all ccts are in parallel to the pots
spacing allows connectors to be used which makes things a bit easier to
connect up
originally i drew this up in expresspcb so if anyone wants the original
.pcb file i can email it just pm me.
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This image has been reduced to fit the page. Click on it to enlarge. |
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2n5457 wsg mod.pdf |
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2n5457 wsg mod +screen.pdf |
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Last edited by diablojoy on Fri Nov 13, 2009 8:52 pm; edited 2 times in total |
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softbase
Joined: Aug 27, 2009 Posts: 6 Location: UK
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Posted: Fri Nov 13, 2009 2:15 am Post subject:
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Hi there,
this looks like a really nice little board, I was thinking along the same lines but using stripboard, this may finally prompt me to try making a pcb
Any chance of a component overlay and example pin allocations?
thanks for this,
Pete. |
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diablojoy
Joined: Sep 07, 2008 Posts: 809 Location: melbourne australia
Audio files: 11
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synthmonger
Joined: Nov 16, 2006 Posts: 578 Location: flada
Audio files: 3
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Posted: Fri Nov 13, 2009 7:26 pm Post subject:
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There is a method to print the image to .pdf that will give you correct scaling. You have to install a new printer and select "print to .pdf" There are some other options that I'm sure google could fill you in with.
So basically you're using the FETs as VCRs? Pretty slick! How large is the range? _________________ Youtube!
modular demos!
Whacky tunes! |
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diablojoy
Joined: Sep 07, 2008 Posts: 809 Location: melbourne australia
Audio files: 11
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Posted: Fri Nov 13, 2009 8:10 pm Post subject:
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seems the range is about the same as with vactrols but much faster response . ray wilson could probably answer that better
I'am running this off 2 MFOS 10 step sequencers as i did before with the vactrol ccts. But now the cv outs are normalled through 8 spdt center off switches so i can get a lot of combinations i also have the output going thru a yusynth VCA controlled by an MFOS ADSR and an MFOS LFO
it is still a noise maker but now it is a very rythmic one
thanks for the tip i will look that up.
I have been looking for a better way to post these but unfortuantly my biggest problem is because i designed this in expresspcb which only puts out a .pcb file the only program that will open the file is expresspcb
I think i will have to look for another program to design in but alas it seems most come with far too many of the wrong restrictions.
having said that I am quite happy to email the .pcb file for this one to anyone that wishes it . If they have expresspcb program [free] it becomes very easy. easier than redoing it anyway
edit : check first post and a big thanks to synthmonger my life has just become a whole lot easier. I have re posted the foil and added overall drawings in pdf format looks like they can just be printed straight out now
scaling appears to be correct |
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softbase
Joined: Aug 27, 2009 Posts: 6 Location: UK
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Posted: Mon Nov 16, 2009 2:29 am Post subject:
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thanks diablojoy, this is great stuff!
I'll download a copy of expresspcb, as it seems the easiest way to print this out, then give it a go when I get some time and when I've finished my MFOS 10 step sequencer
Pete. |
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diablojoy
Joined: Sep 07, 2008 Posts: 809 Location: melbourne australia
Audio files: 11
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Posted: Thu Nov 19, 2009 1:38 am Post subject:
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whenever you are ready softbase just pm me and i will email the .pcb file to you, and thankyou for the interest |
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nullnev
Joined: Oct 07, 2017 Posts: 1 Location: van Nuys
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Posted: Sat Oct 07, 2017 3:25 am Post subject:
Diodes? |
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What diodes are you using in this?
Thank you |
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