DIY Synth- 40106 Oscillator with Sync 

The 40106 is great for the first blinky light circuit, it'll bring you your first BEEP generator and you can even go further and make a proper sawtooth core synth VCO from it.

This video is great! Thanks! I just put this together but I used three Schmidt's to make LFOs and Three to make the synth voices, Really wide range of sounds you can get out of it and I really like having the fine tuning control.

Love the simplicity of your design, Thanks for sharing!

Great work. I have so many CD40106s that should be put to use. Great video

Wow amazing would love to see a quick build guide on this for the beginner enthusiast like me

very cool!thx for sharing,man.so simple and so brilliant!

Man this is insane, amazing work! POG

Nice and simple, very well explained :)

Lovely stuff!

Amazing, thanks for sharing!

Thank you

Well my kitchen grinder can did that too, if I put more carrot in or less I give me that sound, no need ic or any complicated voltage

IT would be usefull having a list of stuff that you have used to build it. Thanks!!! Amaizing work

bleepy bloopy whacky tacky techno - very cool

Thanks for sharing

I like it. Such a simple circuit. You should have a lot more subs than this (107 before my sub).

well I just found my next project :D

I love the calm background noise of your recording, is it raining outside?

I wonder if you could use a 4017 to make a sequencer synth by putting it between the sync and the oscillator.

Hey! Will that circuit work with only 9v? Won't it drain a single 9v battery too fast? Has anyone tried?

This looks cool. Will it run on 9v? I’ve done the Devil’s Triangle it’s on my channel have a look. Cheers

Is sync the same as a square LFO modulating the volume?

AMAZING WORK BRO

hi , great work , ive been working with 40106 and i have a question , how do you prevent from not burning your chips when inverted polarization of the current occurs? iv tried to power from a 9v-12 apadter but has burn some of mi components , thank in advance!

Towards the output, is that 10nf or 10 uf?

@observer b... stumbled across this while wondering where to start on a homemade synth....I know just enough about electronics to be dangerous....I'm going to build this with a hc7414 instead of the 40106 because I have a bunch of them in my scrap bin....the 7414 Vcc is only five volts, not 12 like the 40106....I'm going to use the same values for the components as you did for a starting place, but don't know if the different Vcc voltages will effect the divider circuitry on the inputs and outputs of the inverters....or is it all proportional and has nothing to do with Vcc?? I'm going to give it a shot, but would like to have your opinion if you know what the outcome will be....

Bravo........hook up to oscilloscope .....wave form.....cheers

Forgive my ignorance, I am new to the hobby. Would you be able to provide a parts list so I can buy the parts? Nice presentation!

I'm making a 5V VCO with 2.5V for reference (speaker ground) to get +2.5V and -2.5V, I'm wondering why does everyone use +12V and -12V

Wauw

How much is 1 oscillator

"Sync" and "Gating" are not the same thing. This is gating, not sync.