Simple DIY Synth

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Simple DIY Synth

Post by MarkOne »

I don't know how many of you follow Sam from the Look Mum No Computer YouTube channel, but he recently put up a video taking you through the breadboarding of a fairly simple 2 oscillator analogue synth.

I found this really interesting and may well end up making something like this. I'll be interested in the follow up videos where he plans a delay and a sequencer circuit - And hopefully we'll see it go from breadboard to PCB

It is quite long at an hour and 20 minutes, but I think it's well worth it.

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Re: Simple DIY Synth

Post by Martin Walker »

That filter does sound good! :thumbup:
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Re: Simple DIY Synth

Post by MarkOne »

Martin Walker wrote: Fri Aug 11, 2023 8:57 pm That filter does sound good! :thumbup:

It really does!

In fact for a simple sawtooth only and with a really stripped down VCA with just a release control, I thought the whole thing sounded great!

I’ve just been reading up on the Curtis VCO chip and it looks pretty trivial to add a square wave output with a pulse width control.

For people who don’t want to commit an hour and 20 minutes, Sam has put chapter markers in the description.
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Re: Simple DIY Synth

Post by Martin Walker »

MarkOne wrote: Sat Aug 12, 2023 12:27 pm For people who don’t want to commit an hour and 20 minutes, Sam has put chapter markers in the description.

:thumbup:

Sam's projects seem to be getting less personally bizarre, and more widely useful to others 8-)
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Re: Simple DIY Synth

Post by Arpangel »

As part of my therapy, when I was recovering from being mental, I was sent to a community centre, where a guy got us to make a one oscillator mono-synth in a day, and then we had to take part in a concert with all the other "patients" when we all finished it, but this was Camden, and it was supposed to teach us how to be creative. All I can remember is pushing a resistor through the board straight into my thumb, and bleeding profusely.
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Re: Simple DIY Synth

Post by James Perrett »

My son is designing and building his own modular synth and we've taken some of our inspiration from the Noise Toaster

http://musicfromouterspace.com/analogsy ... OASTER.php

I've no idea how that one sounds but it is a good starting point for our own ideas.
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Re: Simple DIY Synth

Post by Folderol »

Interesting design, although I'd question the use of a transistor as a noise source. Back in the day I got better results from a Zener diode. Oh, and a true Zener effect diode has to be less than 5V otherwise it's an avalanche diode with a poorer noise performance.

P.S. experiment with the resistor value for 'best' noise :)
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Re: Simple DIY Synth

Post by Arpangel »

James Perrett wrote: Wed Aug 16, 2023 2:55 pm My son is designing and building his own modular synth and we've taken some of our inspiration from the Noise Toaster

http://musicfromouterspace.com/analogsy ... OASTER.php

I've no idea how that one sounds but it is a good starting point for our own ideas.

Looks cool, sweepable oscillator, looping EG, cool.
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