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JRE
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One way I am learning about electronics is to try to analyze the function of random small circuit boards that I come across. Recently I I found a device with a component labeled SW2, so likely it’s a switch. It’s the grey cylindrical component with gold endcaps in the attached picture. However 

I don’t understand how it can function as it appears to have no visible way to alter the switch setting. Is it some kind of reed switch? Has it been mislabeled and really it is something else?   

closeup of electronic component

One way I am learning about electronics is to try to analyze the function of random small circuit boards that I come across. Recently I found a device with a component labeled SW2 so likely it’s a switch. It’s the grey cylindrical component with gold endcaps in the attached picture. However I don’t understand how it can function as it appears to have no visible way to alter the switch setting. Is it some kind of reed switch? Has it been mislabeled and really it is something else?  closeup of electronic component

One way I am learning about electronics is to try to analyze the function of random small circuit boards that I come across. I found a device with a component labeled SW2, so likely it’s a switch. It’s the grey cylindrical component with gold endcaps in the attached picture. 

I don’t understand how it can function as it appears to have no visible way to alter the switch setting. Is it some kind of reed switch? Has it been mislabeled and really it is something else? 

closeup of electronic component

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Transistor
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What kind of switch is this surface mount component with no actuator?

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What kind of switch is this?

One way I am learning about electronics is to try to analyze the function of random small circuit boards that I come across. Recently I found a device with a component labeled SW2 … so likely it’s a switch. It’s the grey cylindrical component with gold endcaps in the attached picture. However I don’t understand how it can function as it appears to have no visible way to alter the switch setting. Is it some kind of reed switch? Has it been mislabeled and really it is something else? closeup of electronic component