I bought this gamma ray counter for $15 from Surplus Gizmos, intending to use it as an enclosure for another project.  Any ideas?  It appears to be from the late sixties, and has a tube inside to amplify the signal from the particle chamber.

Thing is, it still works.  As near as I can tell anyway, not having a source of gamma rays to test it against.  And the quality of design and construction is so nice, now I feel bad about Frankensteining it.  In the coming zombie apocalypse, I’m sure it’ll come in useful.