[dorkbotpdx-blabber] D'oh! But thanks!

[Jason Plumb]

dave madden wrote:
> Does anybody know what the 0-5000hr gizmo is?

I spoke briefly with the kind gent who brought the parts (Sorry, forgot 
your name!).  He says that the thing will take a current and slowly 
(5000 hours apparently) turn black over time.  He suspects it was 
intended for use in TVs etc. where a service tech could gauge part 
life/usage based on the level of blackness.

I didn't manage to get any of these, but there were lots to be had. 
Assuming that one could PWM or otherwise vary the current, one could 
envision a method of building up a 2-d image or similar...

-jason
http://noisybox.net