Searching a simple VCA DIY project

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

Moderators: Kent, Joe., analogdigital, infradead, lisa, parasitk, plord, sduck

Post Reply
Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Wed Jan 22, 2020 12:52 pm

Hi, I decided to test Ripples on my main case with other modules unplugged and it's a success for voltage test:
multimeter display +11,73 and -11,88 at power pin voltage test. There is no excessive heat. Good? :party:
As said before mechanical parts are not soldered, I wonder if I can check other things with multimeter before finish the assembly?

User avatar
cackland
Super Deluxe Wiggler
Posts: 1743
Joined: Thu Dec 28, 2017 5:42 pm
Location: Los Angeles, California

Re: Searching a simple VCA DIY project

Post by cackland » Wed Jan 22, 2020 12:56 pm

Yes, what else would you like to check.

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Wed Jan 22, 2020 1:03 pm

Don't know, testing some voltage across components to eventually spot strange or unwanted results? Don't really know, I ask…

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Wed Jan 22, 2020 2:40 pm

So? Should I go to solder mechanical parts and finish the assembly? No need to check anything other than power pins?

User avatar
cackland
Super Deluxe Wiggler
Posts: 1743
Joined: Thu Dec 28, 2017 5:42 pm
Location: Los Angeles, California

Re: Searching a simple VCA DIY project

Post by cackland » Wed Jan 22, 2020 2:48 pm

I understand the overly cautious idea of checking each and every ic / power pin etc on the pcb... however if you have already tested the power is correct and the circuit is receiving power.. then I would complete the project and test it with all its components (ie mechanical parts).

Then if something doesn't feel right, or the controls aren't working as expected, investigate further.

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Wed Jan 22, 2020 2:51 pm

OK, I understand, I asked because I thought it will be more difficult to access to components / reflow / desolder them when build is complete…

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Wed Jan 22, 2020 4:35 pm

Mechanical parts soldered! What's next? I can test it with external device, I've got a standalone 0-coast, field kit FX, beatstep pro… should I test directly by patching the output of the 0-coast in "IN" of Ripples and testing things in audio? Or should I try before that to take any measure of the output of Ripples with patchcable and multimeter?

User avatar
cackland
Super Deluxe Wiggler
Posts: 1743
Joined: Thu Dec 28, 2017 5:42 pm
Location: Los Angeles, California

Re: Searching a simple VCA DIY project

Post by cackland » Wed Jan 22, 2020 5:02 pm

Just plug it in and play with it how it is designed to be used.

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Wed Jan 22, 2020 5:40 pm

It looks like it works!! I will continue tomorrow for the calibration procedure, the resonance produces a very pure sound.
Thank you all for your patience, I am really very grateful, I would never have been able to do this without you and I've learned a lot.
Tomorrow I continue with Veils!

User avatar
cackland
Super Deluxe Wiggler
Posts: 1743
Joined: Thu Dec 28, 2017 5:42 pm
Location: Los Angeles, California

Re: Searching a simple VCA DIY project

Post by cackland » Wed Jan 22, 2020 6:47 pm

:sb: :tu:

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Thu Jan 23, 2020 11:38 am

I've calibrated Ripples without difficulties.
And I've tried to plug Veils: no excessive heat or magic smoke.
Multimeter power pins test: +11,70 // -11,87.
So, let's finish him with mechanical parts… :sb:

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Thu Jan 23, 2020 12:16 pm

I have several questions concerning the mounting of the LEDs:
I never mounted LEDs with these pieces: https://www.mouser.fr/ProductDetail/?qs ... FF3Q%3D%3D
can you explain to me how to mount them?

adam
Super Deluxe Wiggler
Posts: 2881
Joined: Wed Dec 25, 2013 6:24 am

Re: Searching a simple VCA DIY project

Post by adam » Thu Jan 23, 2020 3:07 pm

i would put the leds into those spacers and then put them in the pcb - if you have a panel already then i would attach the jacks etc through the panel to make sure they line up - including the leds, then solder them with the panel attached

Hales
Common Wiggler
Posts: 137
Joined: Mon Apr 30, 2018 11:22 am
Location: Strasbourg, France

Re: Searching a simple VCA DIY project

Post by Hales » Fri Jan 24, 2020 5:12 pm

Veils is working! :party:
Thanks you all again, especially adam for helping me with the building progress. :hail:

User avatar
cackland
Super Deluxe Wiggler
Posts: 1743
Joined: Thu Dec 28, 2017 5:42 pm
Location: Los Angeles, California

Re: Searching a simple VCA DIY project

Post by cackland » Fri Jan 24, 2020 11:15 pm

Glad to hear it.

adam
Super Deluxe Wiggler
Posts: 2881
Joined: Wed Dec 25, 2013 6:24 am

Re: Searching a simple VCA DIY project

Post by adam » Sat Jan 25, 2020 9:18 am

Massive relief for me ;)

Post Reply

Return to “Music Tech DIY”