[ RadSafe ] Help with old electron tube

[Jeff Leavey]

Radsafers:

Does anyone have info on an F-2757 electronic tube from ITT made in the 
early-60's?  A picture is attached. The info I have is:

>> The radioactive tubes are high-power TR switches.  When
>> the  430 radar was first installed, it used those tubes so
>> that it could receive both polarizations.  The tubes have
>> radioactive tritium gas in them.

Do these really contain H-3 and any idea how much?  A Google search by several people has not
turned up any useful info.

Thanks!
Jeff

-- 
Jeff Leavey
Assistant Radiation Safety Officer
Cornell University Environmental Health and Safety 
395 Pine Tree Rd, Suite 210, Ithaca, NY 14850 
jal247 at cornell.edu	www.ehs.cornell.edu
p:(607)255-7397 c:(607)279-4665	f:(607)255-8267