DC Mixer /Glide /Dual VCA (Stripboard)

vladosh · Last edited by vladosh on Thu Oct 18, 2012 7:27 am; edited 2 times in total

Figured i need another mixer so this one is 8 ch ,or 2 x 4 ,the wiring i have in mind is bit different but anyhow one can make use of this as it is ,the glide is there to make fade in/out control of one of the vca's ..just for testing ,for that purpose you need a switch / momentary with positive / ground going into the lag processor and then into one of the vca's ,there was no room for two lags on this piece of reused stripboard ,i haven't built it yet but will start soldering anytime really ,,here are the links for the schematics used in this layout

the vca modules : http://yusynth.net/Projects/Wildcat/vca-modules.html
the lag : http://www5b.biglobe.ne.jp/~houshu/synth/Glide0301.GIF
the dc mixer : http://www.sdiy.org/ensign/7.jpg

(uploaded new version) x3
thanks Phobos ,found it Smile

Mixer - VCA - Glide.JPG

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PHOBoS · Posted: Thu Oct 18, 2012 7:09 am Post subject:

I didn't check if the layout is correct compared to the schematics. but you do have a bad short in the current layout Wink

(or at least that's what it looks like to me)

PHOBoS

ungleichklang · Joined: Dec 03, 2011 Posts: 77 Location: East-Belgium

nice layout => I think I have to move from PCB to stripboarding Smile

vladosh · Posted: Thu Nov 01, 2012 6:02 am Post subject:

thanks Sasha Smile

synthesist · Posted: Tue Mar 19, 2013 3:19 pm Post subject:

can someone tell me if the VCA is usefull to switch control voltages?

Cause I am searching for a simple VCA design that could switch LFOs but also some audio oscillators for sick frequency modulation.

Xonrad