Mil tube identification

[James True]

Addressed to: BOATANCHORS at SCO.THEPORCH.COM
              BOATANCHORS at LISTSERV.TEMPE.GOV

Just got a bunch of military surplus tubes yesterday.  There are two types
that I can only guess about.  No information in my RCA receiving tube manual.
Any information would be appreciated.

One looks like it goes in a waveguide and has two 1/4" pins protruding from
one of the long sides. It is marked "CBYI 7381 (symbol for radioactive) Co60.
Should these be in a toxic waste dump somewhere instead of my garage?

The second looks like a large glass diode.  1" diameter with one round
electrode in each end.  It has some kind of white powder inside.  These are
marked "National Electric NL-24222".

Thanks for your attention and assistance.

James

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James True  N5ARW     EMail: james.true at ibm.net
P.O. Box 13280              Voice: 501-851-8783
Maumelle, AR 72113            Fax: 501-851-8784
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