Re: What is this component?

"max"
> What is this component?
>
> http://i36.tinypic.com/2dkg7r7.jpg
>
> http://i38.tinypic.com/2ppepeh.jpg


** Looks a lot like an  "electrophoretic"  elapsed time indicator.

A small DC current ( circa 1 uA) p***** through the device causing a 
coloured band to progress up the middle of the tube.

The scale divisions may be in hundreds or possibly thousands of hours.

Used to tell how many hours of operation a device has been subjected to  -

they were readily available only a decade ago from Farnell et alia.



.....   Phil