SyncDRONE - A small drone synthesizer

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kaputtpanzer
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SyncDRONE - A small drone synthesizer

Post by kaputtpanzer »

The syncDrone is a very simple drone synth based on a CD4093 cmos nand gate ic. It contains three square wave oscillators that are mixed together. Those oscillators are also fed into one of the NAND gates of the CD4093, which creates a more rhythmic and crude sound. The oscillators can be synced to an external signal. This feature is maybe the most interesting part. When the output of a vco is fed into sync input of the syncDrone it will produce quite interesting waveforms. It fits perfectly in a 1590B diecast enclosure.

I will upload the schematics tomorrow. The zip files contain all the necessary gerber files for the circuit board and the frontpanel and can send directly to a pcb manufacturer (pcbshopper.com helps to find different options).



syncDroneProto1 (2).jpg
syncDroneProto2 (2).jpg
Last edited by kaputtpanzer on Thu Oct 07, 2021 8:52 am, edited 2 times in total.
kaputtpanzer
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Re: SyncDRONE - A small drone synthesizer

Post by kaputtpanzer »

GERBER FILES
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SyncDronePanelGerberFiles.zip
(102.77 KiB) Downloaded 24 times
SyncDroneRevGerberFiles.zip
(267.38 KiB) Downloaded 25 times
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soggybag
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Re: SyncDRONE - A small drone synthesizer

Post by soggybag »

Nice work! Reminds me of a distant relative of the 4MS Triwave Pico Generator.
kaputtpanzer
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Re: SyncDRONE - A small drone synthesizer

Post by kaputtpanzer »

soggybag wrote: Wed Oct 06, 2021 9:04 pm Nice work! Reminds me of a distant relative of the 4MS Triwave Pico Generator.
Thanks alot.

Here are the schematics:
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syncDroneSchematic.png
kaputtpanzer
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Re: SyncDRONE - A small drone synthesizer

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BOM
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syncDRONE-BOM.pdf
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jorg
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Re: SyncDRONE - A small drone synthesizer

Post by jorg »

I was NOT expecting that to sound so great! Really impressive! Would make a sweet module!
kaputtpanzer
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Re: SyncDRONE - A small drone synthesizer

Post by kaputtpanzer »

jorg wrote: Thu Oct 07, 2021 9:36 am I was NOT expecting that to sound so great! Really impressive! Would make a sweet module!
I already thought about making an eurorack version. It is such a simple but nice tone generator for drones.
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EATyourGUITAR
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Re: SyncDRONE - A small drone synthesizer

Post by EATyourGUITAR »

Looks like the modulation is just another truth table that gets mixed in. It doesn't modulate anything. It does sound good though. Thanks for making it open source!🙏
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kaputtpanzer
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Re: SyncDRONE - A small drone synthesizer

Post by kaputtpanzer »

EATyourGUITAR wrote: Thu Oct 07, 2021 4:18 pm Looks like the modulation is just another truth table that gets mixed in. It doesn't modulate anything. It does sound good though. Thanks for making it open source!🙏
Yes, it is a bit misleading. MOD LEVEL is the level of "modulated signal".
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drox
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Re: SyncDRONE - A small drone synthesizer

Post by drox »

nice and compact. the osc sync feature is a great feature!
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ŘłB23³
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Re: SyncDRONE - A small drone synthesizer

Post by ŘłB23³ »

:hihi: sounds pretty awesome, thanks for making it all O.S. :yay:
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