Growing your modular synthesizer for dummies

From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!

Moderators: luketeaford, Joe., lisa, Kent

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Growing your modular synthesizer for dummies

Post by Jay F. » Fri Aug 04, 2017 1:20 pm

Hi all,

Finally, I started the journey to build a modular synthesizer.

And I decided to document my journey into the world of DIY synthesizers into a blog :
Growing your modular synthesizer for dummies.

Image

We are not yet into the heart of the subject but we'll soon be.

Take care,

Jay F.
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

ClausF
Wiggling with Experience
Posts: 454
Joined: Mon Oct 08, 2012 12:01 pm
Location: Germany, FFM

Post by ClausF » Fri Aug 04, 2017 4:08 pm

Cool, will follow that...

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Sat Aug 12, 2017 4:32 am

Hello,

next installment : the plan.

https://growyoursynth.blogspot.be/2017/ ... -plan.html

Image

Where I show some crude sketches of my earliest plans. Ugly.
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Thu Aug 17, 2017 3:16 pm

A bit of electronics this time Not much, but you have to star somewhere.

My first DIY Eurorack module is a simple DC mixer.

https://growyoursynth.blogspot.be/2017/ ... odule.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

ClausF
Wiggling with Experience
Posts: 454
Joined: Mon Oct 08, 2012 12:01 pm
Location: Germany, FFM

Post by ClausF » Fri Aug 18, 2017 7:55 am

Still following that... :mrgreen:
Regarding the mixer: it's easier when you solder the pots on the PCB. You don't have so much wiring and your PCB gets fixed automatic...

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Fri Aug 18, 2017 12:04 pm

Thanks.

I thought about it. You're right.
But the holes are too small on the perf board I have.
And I had the impression that I would have a hard time aligning the holes on the panel with the pots on PCB.
Here if I miss, it's not an issue. And I did miss. ;)

But it's certainly a way I will explore later on when I'll do my own PCB.
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
av500
Super Deluxe Wiggler
Posts: 1739
Joined: Mon Feb 02, 2015 8:11 am
Contact:

Post by av500 » Fri Aug 18, 2017 12:26 pm

you might want to change to Schottky diodes like the 1n5817/8/9 for your polarity protection, they have much less forward voltage drop and dont cost much either.

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Fri Aug 18, 2017 3:25 pm

Very right. Thanks for the tip.

It did occur to me ... after the fact. :bang: I didn't pay attention and I had those 1N4001 diodes available so.. why ordering something else. :doh:

I'm too lazy to change them now, I guess.

I won't do the same for the next ones.
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Mon Aug 28, 2017 3:47 pm

Hi,

I just finished my build of Yusynth's Random Module in Eurorack format.

https://growyoursynth.blogspot.be/2017/ ... odule.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
wogglebug
Common Wiggler
Posts: 74
Joined: Sun Jul 09, 2017 11:03 pm

Post by wogglebug » Mon Aug 28, 2017 6:37 pm

Great posts! Looking forward to seeing where you are going next.

User avatar
Troubleshooter
Wiggling with Experience
Posts: 366
Joined: Thu Oct 01, 2015 8:21 am
Location: Belgium

Post by Troubleshooter » Tue Aug 29, 2017 4:48 am

You can never have enough vca's...

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Tue Aug 29, 2017 11:45 am

@wogglebug: Thanks. I appreciate.

@Troubleshooter: indeed VCA's are on the to-do list. 8-)
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Fri Sep 01, 2017 5:19 am

September edition : guitar effect in a Eurorack module.

https://growyoursynth.blogspot.be/2017/ ... odule.html

Image

Take care.
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

ClausF
Wiggling with Experience
Posts: 454
Joined: Mon Oct 08, 2012 12:01 pm
Location: Germany, FFM

Post by ClausF » Fri Sep 01, 2017 6:31 am

Cool, nice designs too.

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Sat Sep 02, 2017 12:49 am

@ClausF: thanks.

Here is the first family photograph.

https://growyoursynth.blogspot.be/2017/ ... graph.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Tue Oct 03, 2017 1:16 pm

Hello,

I thought I'd share my(*) technique for the module panels

https://growyoursynth.blogspot.be/2017/ ... nique.html

Image

Take care,

Jay F.
(*) in fact I got it from the great Ray Wilson.
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Thu Dec 28, 2017 9:46 am

"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Sun Feb 04, 2018 3:50 pm

Hi there,

I finally made a case for my first modules.

https://growyoursynth.blogspot.be/2018/02/the-case.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
kertikristof
Learning to Wiggle
Posts: 10
Joined: Tue Dec 12, 2017 5:53 am
Contact:

Post by kertikristof » Sun Feb 04, 2018 4:38 pm

Jay F. wrote:So, Rings came this morning ....

https://growyoursynth.blogspot.be/2017/ ... on-it.html

Image
They look great, congrats on these modules!

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Mon Feb 12, 2018 5:30 am

I played a bit with the Korg SQ-1 step sequencer.

I don't have a lot to control on the synth just yet. But it's still possible to have some fun.

https://growyoursynth.blogspot.be/2018/02/sequencer.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Mon Apr 02, 2018 2:27 am

Hello,

Next stop : passive multiple with flashing LEDs.

https://growyoursynth.blogspot.be/2018/ ... dules.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Fri Apr 06, 2018 2:47 pm

Hi,

as promised, the next module : passive attenuator, reference voltage and manual gate.

https://growyoursynth.blogspot.be/2018/ ... ltage.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
mqmq
Common Wiggler
Posts: 217
Joined: Thu Apr 28, 2016 2:29 am
Location: FR

Post by mqmq » Sat Apr 07, 2018 4:45 am

These last 2 modules are not passive...

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Sat Apr 07, 2018 2:06 pm

You're right.

Calling the bus module a passive multiple with flashing LEDs is a bit of a misnomer, I agree. I should have stayed with the "bus" name, without detailing. Though it really is the addition of a passive multiple function, connected in parallel to an active circuit to show the signal going throught it thanks to bicolor LEDs.

For the other module, it's composed of three function. The attenuator is entirely passive, the manual gate as well. The reference voltage is the only active part and it happens to be connected to the other two functions.
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

User avatar
Jay F.
Common Wiggler
Posts: 105
Joined: Mon Jul 17, 2017 12:20 pm
Contact:

Post by Jay F. » Mon Apr 16, 2018 12:30 pm

So I decided to make an output module...

https://growyoursynth.blogspot.be/2018/04/output.html

Image
"We are born naked, wet and hungry. Then things get worse."
https://growyoursynth.blogspot.be/

Post Reply

Return to “Music Tech DIY”