General > General Technical Chat

Interesting piece of electronics...

(1/4) > >>

allanw:
Some others might have seen this around the internet recently as well.



The IC's a optocoupler: http://measure.feld.cvut.cz/groups/edu/osv/4N35.pdf

I think it's interesting that they used a 1% resistor...

Kiriakos-GR:
What are the usage of all this ?

allanw:
It's a way to remotely detonate a bomb when the cell phone is called. This is a great picture because it shows how the bomb was disabled or something before it was called. Or maybe the bomb just didn't work in the first place. Or they had jammed the signal.

What I find interesting and scary is that they use precision electronics to do this. Not that I'm interested in making one myself, of course.

armandas:

--- Quote from: allanw on May 07, 2010, 05:58:52 am ---What I find interesting and scary is that they use precision electronics to do this. Not that I'm interested in making one myself, of course.

--- End quote ---
Where do you see precision electronics? I'd say they use whatever they can scavenge from old consumer electronics products..

Grapsus:
I agree, who cares about the precision of the resistor you place on the emitter of this optocoupler? Moreover the overall quality of this system seems awfull...

Navigation

[0] Message Index

[#] Next page