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What is everybody’s favorite DIY clockable LFO?
MUFF WIGGLER Forum Index -> Music Tech DIY  
Author What is everybody’s favorite DIY clockable LFO?
st_corbin
I am mainly looking for an LFO that can do the more traditional shapes, e.g. sine, triangle, etc. What are my DIY options and does anybody have one they really like?
4floorsofwhores
I'm a huge fan of the Frequency Central Wave Runner. traditional and not so traditional. nice easy build
st_corbin
Oh man that looks perfect. I seem to always forget about Frequency Central but they have some cool stuff.
pix
Mutable instruments Tides (or the 8HP swirls version) if you don't mind SMD
st_corbin
I don’t mind smd but not sure about loading the firmware, which I think it requires? How difficult is that?
unrecordings
+1 on the Wave Runner
I've just built the 5U version and it's fantastic
mome rath
quite fond of ray wilson's
adam
st_corbin wrote:
I don’t mind smd but not sure about loading the firmware, which I think it requires? How difficult is that?


if you use a binary and st's own windows software, it's very easy, takes a novice less than 5 minutes
st_corbin
adam wrote:
st_corbin wrote:
I don’t mind smd but not sure about loading the firmware, which I think it requires? How difficult is that?


if you use a binary and st's own windows software, it's very easy, takes a novice less than 5 minutes



Ok, that’s good to know. I’ll have to look into that.
desolationjones
Pingable Envelope Generator is an enjoyable thru hole build. Good value kit, too.
st_corbin
desolationjones wrote:
Pingable Envelope Generator is an enjoyable thru hole build. Good value kit, too.



Never really looked into that one, but it does look cool. Although it’s also pretty big.
toneburst
I had an Ultra Wave LFO, also from Frequency Central, for a while. Quite an easy build, and a great module. It's basically the same as the Waverunner, but with CV control of most of the parameters.

http://www.frequencycentral.co.uk/?page_id=1359

a|x
euromorcego
for full DIY you can also have a look at the electric druid chips directly.

He just updated them recently: https://electricdruid.net/electric-druid-chips-the-next-generation/

they only require little circuitry. I want to make a 1u tile for the 8 pin lfo ... but didn't manage yet.
st_corbin
toneburst wrote:
I had an Ultra Wave LFO, also from Frequency Central, for a while. Quite an easy build, and a great module. It's basically the same as the Waverunner, but with CV control of most of the parameters.

http://www.frequencycentral.co.uk/?page_id=1359

a|x



Yeah, when I looked at the smaller LFO I also checked the other Frequency Central modules and saw that. I was kinda leaning towards something with less hp but that thing is pretty cool.
pix
st_corbin wrote:
I don’t mind smd but not sure about loading the firmware, which I think it requires? How difficult is that?


I found this very useful.

https://medium.com/music-thing-modular-notes/how-to-get-started-writin g-your-own-firmware-for-mutable-instruments-clouds-a08173cec317

Also mouser sells ST-LinkV2 for cheap (surprisingly!)
st_corbin
pix wrote:
st_corbin wrote:
I don’t mind smd but not sure about loading the firmware, which I think it requires? How difficult is that?


I found this very useful.

https://medium.com/music-thing-modular-notes/how-to-get-started-writin g-your-own-firmware-for-mutable-instruments-clouds-a08173cec317

Also mouser sells ST-LinkV2 for cheap (surprisingly!)



That does look helpful. Thanks! If I have any issues I actually have a friend who’s an EE and experience doing this that could help as well.
fuzzbass
Another option is the Mutable Peaks module. You get clockable LFO plus three other functions, all multiplied by two since its a dual module. Small footprint too. One of the more interesting claims in the user manual (I have not really checked it out yet) is that the LFO can latch to unusual beats. You can phase shift the LFO, which is surprisingly useful.
st_corbin
fuzzbass wrote:
Another option is the Mutable Peaks module. You get clockable LFO plus three other functions, all multiplied by two since its a dual module. Small footprint too. One of the more interesting claims in the user manual (I have not really checked it out yet) is that the LFO can latch to unusual beats. You can phase shift the LFO, which is surprisingly useful.



Peaks seems like a useful module but I don’t really need any of the other functions it provides. I think right now I’d rather get an LFO that is either cheaper or more full featured. Although the phase shifting does sound interesting.
sizone
euromorcego wrote:
for full DIY you can also have a look at the electric druid chips directly.

He just updated them recently: https://electricdruid.net/electric-druid-chips-the-next-generation/

they only require little circuitry. I want to make a 1u tile for the 8 pin lfo ... but didn't manage yet.


just about done breadboarding an envgen8. the part count, complexity and panel size start going up dramatically when you start implementing features. I'm up to a full 2 frac panel and three quad opamps.

not all that much for what it does, but not really simple if you want c/v control.
euromorcego
sizone wrote:
euromorcego wrote:

they only require little circuitry. I want to make a 1u tile for the 8 pin lfo ... but didn't manage yet.

[...]
not all that much for what it does, but not really simple if you want c/v control.

true. But for the 8-pin lfo I really just had a simple utility lfo in mind, with a tap tempo control (and sync input) and selection of waveforms. So it is two jacks (sync in, lfo out), one pot (waveform), and one button (tap tempo).

Most complex part is to implement a filter on the lfo output (unfortunately, the datasheet does not give an example for use in an eurorack system, but it can be adapted from the other lfo). For my use, the chip itself and a dual OpAmp should be sufficient.

Still more than a basic schmitt lfo, but it can be synced and has more waveforms.

If you go for the full featured lfo, with cv control, the number of parts obviosuly increases quite a lot.
izash
I love my TTLFO.
I also use it as a flexible clock source.
http://www.ginkosynthese.com/product/ttlfo/
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