[R-390] Line Level VU Meter

[David Wise]

Radium has a half-life in the thousands of years,
so if it was hot, it's still hot.  The phosphor,
however, gets tired and quits glowing,

I wouldn't be surprised if a radio-phosphor
was also light-storing; you folks who see that
aren't off the hook.

Since it's an alpha emitter and alphas are stopped
by just about everything, your geiger counter will
not register through the glass.  Alphas may be easy
to stop, but if you inhale or ingest a source,
it will work on you from the inside for the
rest of your life; high risk of cancer.

If you open one, it's a good idea to wear a
good fine-particle-filtering respirator,
do it in a breeze-free place, don't kick up
any dust or let a single speck fall on the floor,
and treat the tools and debris as low-level
radioactive waste.

My $.02,
Dave Wise