here is the complete project:https://docs.google.com/presentation/d/1Z1q_GPAg4meiXXSSI-MCJ0b07a8dzOeWbHlceL2v3CM/edit#slide=id.p
and there is not another video explaining what is a transistor and analog electronic but have slides: https://docs.google.com/presentation/d/1rMZCQWXw-wLwJm-mEClq1kY_D-Fj3WGD3juRjONG5TQ/edit?usp=sharing
Did you miss our previous article...
https://learningvideos.club/musical-instruments/how-to-play-welcome-to-the-jungle-on-drums-lessoncoverscoretranscriptionpdftutorial