Testing a fuse with a cellphone - GIF

[ToolTalkBot]

Testing a fuse with a cellphone.




Previously:

Fuse replacement guide - photo
High voltage fuse removal tool - photo
Inspecting fuses - GIF
Non-metallic fuse pliers - photo

[gatz]

“smart” use of a cellphone

[BillCameron123]

But does it work????? seems to me to be a pressure based application... Anybody having a supporting comment???

[davesrepair]

Crazy, but this works, yes! I've run several tests with it this evening. It'll come in handy when the phone is all I've got on me.

[mklotz]

But does it work????? seems to me to be a pressure based application... Anybody having a supporting comment???

Phones use capacitance switches which detect the change in capacitance when the capacitance of a human is connected to the switch. (More on that subject here...

https://en.wikipedia.org/wiki/Touch_switch

so the human must be in electrical contact with the switch to operate it. He is if the fuse is good; if the fuse is open he's not in contact.