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photo-driven relay (built) | by linux-works
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photo-driven relay (built)

a working prototype.

(e=emitter, b=base, c=collector).

 

shine some light on the photosensor and you can hear the relay click. remove the light and it clicks back again.

 

hand-soldered by linux-works (me). lead dress is non-critical ;)

 

photo: e3, 14-54, raw capture

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Taken on June 16, 2008