[R-390] Line Level VU Meter

[rbethman@comcast.net]

I don't know how "toxic" radium is after it has gone through several half
lives.  Is it an alpha emitter?  If so, the particles could probably be
safely vacuumed out.  Alpha particles won't go through paper or unbroken
skin, BUT are VERY toxic if breathed in or otherwise ingested.

Bob - N0DGN

Bob - N0DGN  Craf-T-Bob  (Because I love Hallicrafters!)
R-390A EAC '67, R-390A Collins '52, BC-610I, BC-939B,
and BC-614E