MJ Brush wrote...

>I have a super easy question. I've been looking at a lot
>of scrap circuit boards kickin around here, and I always
>notice little parts (usually look like SMT transistors)
>which are silkscreen labelled CR1, CR2, etc...  What does
>CR stand for?  The only thing I can thing of is Comparator.
>Is that right?

Nope.

CR = "Crystal Rectifier," a term once used for diodes, but
largely unused since very late in the Jurassic Age.

Why it survives as a component designator abbreviation, I've
never been able to figure out.  I use "D" for diodes.

Dave D.

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