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Optocoupler on a circuit board. Note the pair of class Y1 safety capacitors.
Optocoupler on a circuit board. Note the pair of class Y1 safety capacitors.
A reflective pair (left) and two slotted couplers with the light paths in purple
A reflective pair (left) and two slotted couplers with the light paths in purple
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Various electronic components, with a 15 cm ruler to scale.
Various electronic components, with a 15 cm ruler to scale.
Various examples of Light-emitting diodes
Various examples of Light-emitting diodes
SMD resistors on the backside of a PCB
SMD resistors on the backside of a PCB
Some different capacitors for electronic equipment
Some different capacitors for electronic equipment