Quartz
Rotting chip - RIP
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
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
The End
Salvaged LEDs
See also...
Keywords
Authorizations, license
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Two coils


To save a full H-bridge, they just wound two coils onto the core. It is driven by 2 MOSFETs in a small chip (TPC8211).
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