going LFO crazy

[Skrog Productions]

Damn, I ran out of lfo's on a patch , need to make space for more lfo's .

i need to condense 3 older designed panels to free up space for a new 6 lfo panel i've templated in corel draw.

Panel design for 2 dual vc-lfo's done below and a new module panel design for 6 of Ray's http://www.musicfromouterspace.com/analogsynth/coolnewlfo.html
versatile multi waveform lfo , to be constructed on vero-board & panels drilled in the garden shed .

more pics as i progress .

Dave

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old vc-lfos from 2005.JPG
Description:	3 older style single vc-lfo's i built in 2005 plus a 4th board will squeeze into 2 dual vc-lfos
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Dual vc-lfo & multi lfo sm.JPG
Description:	2 of the new dual vc-lfo's under construction also multi lfo , which is 6 of Ray's versatile lfo's (a circuit ray has on the website)
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[ashleym]

It is funny, there are many things in life you can never have too many of. On my list were horsepower, records, chocolate fingers and now LFOs. Most of the time something basic will do, exactly as you are making here!!

[wmonk]

Looks great again Dave!
Now I think of it, why do I only have LFOs without VC? o_O
How many VCAs do you have?

[Skrog Productions]

Ashley....choccy fingers , yum , cadburys of course .




Wmonk ...."How many VCAs do you have?" i just have 6 at the moment , enough for a handfull of monosynths from the modular .



Dave

[wmonk]

No VCA control over all those modulations?

[Skrog Productions]

Hello ...

I have built 6 of http://www.musicfromouterspace.com/analogsynth/coolnewlfo.html
onto stripboard following the diagram as i go and added the crows nest wiring , also populated a 4th VC-LFO & wired ready for panel assembly , panels are almost ready to dress with sockets & pots , the 3 new design modules will be ready to use for Halloween stream on sunday , They will be ready

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6 mfos 'rays new lfo' lfo's.JPG
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CV-LFO no4.JPG
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[Fenris]

Looking very nice indeed. I look forward to hearing them in action.

regards

Fenris

[jordroid]

Nice, i love Ray's cool LFO also and have built quite a few of them. Your stuff never fails to inspire and i have adopted a bunch of your "space saving" techniques into the modules i'm building, great stuff and great sounds from your recent sequencer and SVF threads.

[Skrog Productions]

Thanks for the comments guys , i'm probably going to have to review my current capacity on the "windscale" diy power plant for the modular after adding all these upgrades .

6 multi LFO module complete , all working after some head scratching faults / mistakes ......3 stripboard isolator drilled pads had micro slivers of copper shorting (classic 'non concentration'), drill more out , fixed.

forgot 2 wire links , fixed .

Sine wave trimmers all set, & all 6 tested with oscilliscope

as i was wiring i tested some different sizes of caps for the lfo rates i used 100N mylar for the high rate and a Wima 2.2uF box polyester instead of the 2- 10uF electrolytics back to back in the diagram.
I also used Log 100K pots for the rate controls , for me , they give a bit of fine adjustment at the lower speeds.

Dave.

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multi LFO.JPG
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6 multi LFO.JPG
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[Skrog Productions]

Pots arrived in the post today to finish the VC-LFO's All calibrated & tested , cool .

I found some 10uF non polar caps & have put them in the bottom 2 lfo's low speed switches on the 6 multi lfo module , great for very slow filter sweeps (windy landscape ) .


sounds of 10 lfo modulation to follow ...

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MFOS Dual VC-LFO 2010.JPG
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MFOS Multi LFO 2010.JPG
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[Skrog Productions]

some vco sweeps & a very cold north wind

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Multi lfo wave forms & rates.mp3
Description:	going through the waveforms and rates on the mfos Multi lfo	Download
Filename:	Multi lfo wave forms & rates.mp3
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VC-LFO rate sweep by hand.mp3
Description:	VC-LFO rate sweep by hand	Download
Filename:	VC-LFO rate sweep by hand.mp3
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VC-LFO modulated by 2 lfo's.mp3
Description:	2 triangle lfo's from the multi lfo, hooked up to cv1 and cv2 inputs , modulating the vc-lfo at different rates	Download
Filename:	VC-LFO modulated by 2 lfo's.mp3
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super cold wind 10 lfo's - 5 vcf's.mp3
Description:	ice cold north winds , get your thermals on :D..... 3 noise generators hooked up to 5 vcf's , which are being modulated by 10 lfo's (all the new ones) run straight through a vca as an amp	Download
Filename:	super cold wind 10 lfo's - 5 vcf's.mp3
Filesize:	6.5 MB
Downloaded:	154 Time(s)

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[Fenris]

Some great sounds Dave. You must be very pleased. Blimey that wind is cold!

regards

Fenris