eli5 what is this iconic high pitched sound you hear, when a movie or game character activates night vision goggles? Is this a real thing?

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eli5 what is this iconic high pitched sound you hear, when a movie or game character activates night vision goggles? Is this a real thing?

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Anonymous 0 Comments

It’s a capacitor charging – I may be dating myself, but older inexpensive and disposable cameras made the same sound when charging the flash.

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