A wrongdoer is disabling their communications systems in order to control the flow of information to the authorities. One of these systems is a wireless telegraph. I would like to have the wrongdoer steal an important component, which can be easily hidden and replaced later.
It appears from my reading that taking the moveable contact of a Perikon detector would do the job, and it would be fairly quick and easy to steal and replace. But:
1) would a commercial-grade (not homemade) system from, say, the mid-20's to early 30's have a Perikon detector, or would it be some other kind of crystal system, or perhaps most likely to be a vacuum tube?
2) Would a crystal contact or vacuum tube have to be handled very delicately, or could you carry it around in your pocket?
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