The brain of a toothbrush Rotting chip - RIP TPC S8211 - 2 N MOSFETs Rotting chip. Label Bolt Left speaker Left speaker Mesh Nice attention to detail Right speaker - innards Right speaker In memory of a pet animal Getting access Removed the top The woofer IMGP4433 Input board Input board Input board Nice attention to detail Main amp My old stereo speakers Quartz Two coils Rotting PCB Who made it Bad solder mask Bad solder mask HX7500 magnet NiCd battery Philips HX7500 - body Philips HX7500 - body Lit LED The brain + LEDs Full wave rectifier - strangeness Full wave rectifier - with small load Full wave rectifier - with large cap Full wave rectifier - strangeness Full wave rectifier - strangeness Smoothing capacitor added Smoothing capacitor added SMD to the rescue Burned LED The End