11:49 How to Add a Line-In and Bluetooth to Old Stereo Systems (3) The Post Apocalyptic Inventor469K views
18:38 SMPS Tutorial (1): Introduction - Switched Mode Power Supplies and Power Conversion The Post Apocalyptic Inventor456K views
13:59 How to Add a Line-In and Bluetooth to old Stereo Systems (1) The Post Apocalyptic Inventor200K views
