Nanoptix “Spill-Proof” Thermal Receipt Printer

I have yet another receipt printer, this one appears to be brand new. It’s possibly the smallest thermal 80mm printer I have at the moment, and has both USB & Serial interfaces. There’s not much to these printers at all. Removing a single screw allows the case halves to separate,

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Hair Dryer

This is a 1500W hairdryer, death caused by thermal switch failure. This is the switch unit. Attached are two suppression capacitors & a blocking diode. Cold switch is on right. Heating element unit removed from housing. Coils of Nichrome wire heat the air passing through the dryer. Fan unit is

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