What are these components in these circuits

componentsidentification

I have seen a documentary about making BGM-71 TOW (an anti-tank missile – the Iranians make it). You can see it in this link (part 1). I have seen two odd components. In your opinion, what are these components?

The first component is this (at 4:17 minute):

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The second component is this (at 4:38 minute):

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Here's another picture of the second component (at 4:50 minute):

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Best Answer

Difficult to see from the photos but the second component doesn't look like a resistor to me, but a plated metal enclosure rather like those used to package crystals, only larger.

What's inside it? Not a clue, but my guess would be a SAW filter or crystal filter, physically large enough to need such a case.

These sometimes come in odd packages.

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