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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Super Sequencer
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Skrog Productions



Joined: Jan 07, 2009
Posts: 857
Location: Scottish Borders
Audio files: 97

PostPosted: Sat Feb 07, 2015 5:35 am    Post subject: Super Sequencer
Subject description: Dual normal 16 step with extras
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Hi all Smile

Since building the vari-sequencer , I have sorely missed having 2 identical mfos standard 16 step sequencers .

I have a standard 16 step I built in 2005 and it's soon time it was condensed Smile.

I have ordered another standard 16step set of pcbs from Ray a few days ago and I'm planning to build a dual sequencer on a spare 400mm by 250mm blank panel I have had set aside.

This thread will take a few weeks to get going, I'm at the planning / thinking stage at the moment Smile.

The new panel needs to contain......
2 x standard 16 step sequencers.
2 x simultaneous gate buses per sequencer.
2 x sequential switches.
2 x clock dividers.
2 x CV mixers (keyboard transpose).
lots of toggle switches & wiring Very Happy .

here is 2 planning diagrams of how the external clock & re-set"all" functions are connected & also the plan of how the Gate buses are connected inside.

And a first envisaged panel layout Smile Smile Smile Smile.


Super Sequencer block diag clock & reset.jpg
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Super Sequencer block diag  clock & reset.jpg



Super Sequencer block diag Gates.jpg
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Super Sequencer block diag Gates.jpg



Skrog MFoS Super sequencer Feb 2015 fixes v2.jpg
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Skrog MFoS Super sequencer Feb 2015  fixes v2.jpg



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Skrog Productions



Joined: Jan 07, 2009
Posts: 857
Location: Scottish Borders
Audio files: 97

PostPosted: Sun Feb 22, 2015 2:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi Smile
Been soldering again & tweeking the panel design a little.....

Got the 2 cv mixers built on vero board that will do the transpose sections, I added a switch to select normal cv or glide cv to be mixed with an external keyboard midi to cv converters cv output .

also got the sequential switches , divider for slowly clocking the seq switches , and some buffers for the 4 gate patterns available.

more pics soon.....


boards.jpg
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boards.jpg



Skrog MFoS Super sequencer Feb 2015 fixes v2.jpg
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Skrog MFoS Super sequencer Feb 2015  fixes v2.jpg



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epicyclus@skrogmusic.plus.com
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Skrog Productions



Joined: Jan 07, 2009
Posts: 857
Location: Scottish Borders
Audio files: 97

PostPosted: Mon Feb 23, 2015 1:06 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hullo Smile

Now got the mfos sequencer pcb's all populated & wired , need to do final panel checks for spacing & text fowling before I get the sticker done , and order the toggle switches & pots etc.

Dave.


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epicyclus@skrogmusic.plus.com
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Skrog Productions



Joined: Jan 07, 2009
Posts: 857
Location: Scottish Borders
Audio files: 97

PostPosted: Wed Feb 25, 2015 2:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi Smile

I'm sure this is now the final final panel layout.... in blue Smile .

Checked twice over for text fouling by fixing washers / socket nuts and all seems good , phew! Smile .

While over-analysing the connection and integration of the different bits of this sequencer, in my head , I fore saw a problem with my reset all arraingment Smile ..... the sequential switches & their respective clock dividers for sequencer 1 & 2 reset with a +12 volt momentary push ..... and the MFOS sequencers reset with a momentary ground , to save altering the panel I decided to order a DP toggle switch that has a momentary action on one flick direction only , so it resets the + and ground circuits , on different poles , at the same time .

Hope to get the sticker done over the next few days ..... then it's time for hours of press drilling in the shed , gonna need a wooly hat & hot coco for that Wink

Dave.


Skrog MFoS Super sequencer Feb 2015 fixes v2 Blue convert curves.jpg
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Skrog MFoS Super sequencer Feb 2015  fixes v2  Blue convert curves.jpg



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