Video Series: DIY VCO – Oscillator Core

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

Moderators: luketeaford, Joe., lisa, Kent

Post Reply
fosimoor
Learning to Wiggle
Posts: 14
Joined: Tue Aug 27, 2019 2:38 pm
Location: Berlin

Video Series: DIY VCO – Oscillator Core

Post by fosimoor » Sun Jun 21, 2020 9:52 am

hi all,

I guess most people here are pretty seasoned, but if there's some beginners around: I've started a new video series on how to build a v/oct analog VCO. here's the first part, where I go over the oscillator core and explain what all the components do in detail:



part two is on the way, thanks for watching!

User avatar
Eloc
Veteran Wiggler
Posts: 510
Joined: Fri Jul 11, 2014 3:27 pm
Location: United Kingdom

Re: Video Series: DIY VCO – Oscillator Core

Post by Eloc » Sun Jun 21, 2020 10:49 am

Looks good. Looking forward to part 2. I guess that'll be expo converter etc?

User avatar
synkrotron
Ultra Wiggler
Posts: 939
Joined: Wed Nov 09, 2016 12:48 pm
Location: Warrington UK
Contact:

Re: Video Series: DIY VCO – Oscillator Core

Post by synkrotron » Sun Jun 21, 2020 12:02 pm

fosimoor wrote:
Sun Jun 21, 2020 9:52 am
part two is on the way, thanks for watching!
Thank you for making. Looking forward to Part 2 :)

fosimoor
Learning to Wiggle
Posts: 14
Joined: Tue Aug 27, 2019 2:38 pm
Location: Berlin

Re: Video Series: DIY VCO – Oscillator Core

Post by fosimoor » Sun Jun 21, 2020 12:56 pm

Eloc wrote:
Sun Jun 21, 2020 10:49 am
Looks good. Looking forward to part 2. I guess that'll be expo converter etc?
glad to hear! yep exactly – expo converter with temperature compensation!

fosimoor
Learning to Wiggle
Posts: 14
Joined: Tue Aug 27, 2019 2:38 pm
Location: Berlin

Re: Video Series: DIY VCO – Oscillator Core

Post by fosimoor » Sun Jun 21, 2020 12:57 pm

synkrotron wrote:
Sun Jun 21, 2020 12:02 pm
Thank you for making. Looking forward to Part 2 :)
my pleasure - glad it's helpful!

KSS
Super Deluxe Wiggler
Posts: 2683
Joined: Mon Jan 25, 2016 7:28 am

Re: Video Series: DIY VCO – Oscillator Core

Post by KSS » Sun Jun 21, 2020 5:40 pm

@fosimoor
Suggest using "ramp" instead of "reverse sawtooth". As your aim is beginners, you can influence the future in a positive way.

User avatar
Tonescape
Wiggling with Experience
Posts: 281
Joined: Tue Jan 27, 2015 10:18 am
Location: Denmark
Contact:

Re: Video Series: DIY VCO – Oscillator Core

Post by Tonescape » Tue Jun 23, 2020 12:13 am

Nicely done! I really like the illustrations. Looking forward to next episode 🙂

fosimoor
Learning to Wiggle
Posts: 14
Joined: Tue Aug 27, 2019 2:38 pm
Location: Berlin

Re: Video Series: DIY VCO – Oscillator Core

Post by fosimoor » Mon Jul 13, 2020 1:27 pm

here's part two – controlling the oscillator with a voltage.



next up is getting rid of temperature dependence, proper scaling and possibly a waveshaper to get a variable pulse width output!

User avatar
FetidEye
demonic space drone
Posts: 2100
Joined: Mon Dec 06, 2010 5:00 pm
Location: Red Zone
Contact:

Re: Video Series: DIY VCO – Oscillator Core

Post by FetidEye » Wed Jul 15, 2020 1:48 pm

Thanks for making these wonderful video's
The explanations are very clear and well thought out. Love your drawings :)

mtts
Learning to Wiggle
Posts: 43
Joined: Sat Nov 11, 2017 2:20 pm

Re: Video Series: DIY VCO – Oscillator Core

Post by mtts » Mon Jul 20, 2020 3:22 pm

Wow ... these are really good. All sorts of things I didn't understand I now (think I) understand. No mean feat, because I'm fairly thick. Thanks a lot!

fosimoor
Learning to Wiggle
Posts: 14
Joined: Tue Aug 27, 2019 2:38 pm
Location: Berlin

Re: Video Series: DIY VCO – Oscillator Core

Post by fosimoor » Sat Jul 25, 2020 2:09 am

glad i can help! here's part three:



with this, the VCO is totally usable – but there's a few easy addons that i'll cover in the next video. after that, i'll do a proper module build episode.

User avatar
htor
Common Wiggler
Posts: 176
Joined: Sun Dec 01, 2019 6:20 am
Location: Leipzig, Germany

Re: Video Series: DIY VCO – Oscillator Core

Post by htor » Mon Jul 27, 2020 3:54 am

these videos are really good. thank you so much for making them!

stepvhen
Learning to Wiggle
Posts: 34
Joined: Sun Jun 07, 2020 10:41 am

Re: Video Series: DIY VCO – Oscillator Core

Post by stepvhen » Mon Jul 27, 2020 7:51 am

These are really fantastic. I have watched other DIY videos but haven't seen an explanation of output buffers or voltage dividers yet, and why they are useful.

User avatar
nimmen
Wiggling with Experience
Posts: 292
Joined: Wed Aug 31, 2016 1:42 am
Location: vilnius

Re: Video Series: DIY VCO – Oscillator Core

Post by nimmen » Mon Jul 27, 2020 2:50 pm

Good stuff, keep it going!
busy soldering...

steviet
Common Wiggler
Posts: 240
Joined: Wed Oct 17, 2018 9:47 am
Location: Montréal
Contact:

Re: Video Series: DIY VCO – Oscillator Core

Post by steviet » Mon Jul 27, 2020 2:57 pm

Very very well done. Thank you for this! You've got a subscriber out of this guy here.
Soundcloud
Website - DIY/Euro/Gear Blog updated every Sunday

User avatar
Datum
Common Wiggler
Posts: 102
Joined: Thu Jul 04, 2019 3:17 pm

Re: Video Series: DIY VCO – Oscillator Core

Post by Datum » Mon Jul 27, 2020 4:17 pm

Great job! I really enjoy these. Very logical explanations.

dataknife
Learning to Wiggle
Posts: 2
Joined: Sun Mar 08, 2020 3:43 pm

Re: Video Series: DIY VCO – Oscillator Core

Post by dataknife » Tue Jul 28, 2020 2:59 am

I am also enjoying the series. Much as I enjoyed the arpeggiator video.

Post Reply

Return to “Music Tech DIY”