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https://www.tme.eu/de/details/cd4009ube/puffer-sender-treiber/texas-instruments/
Build Documents
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All Fles files are on githubGitHub
https://github.com/e-licktronic/Yocto-V2.0/tree/main
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Summary: Replace IC 3 with the following circuit ( comment from DSL-MAN: was NOT working as aspected by me, not all voices are triggered then correctly or Snare was missing)
not from me are the following pictures:
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