DP-75 Geiger counter chirping noise #radioactive

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Published on ● Video Link: https://www.youtube.com/watch?v=vsF5dE6pWkg



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The weird background chirping noise the Polish DP-75 Geiger counter makes as opposed to the normal Piezo-electric clicking/ticking noise the majority of counters make.
You have to really amplify the audio output to actually hear the noise and even then it's mostly drowned out by the high voltage noise of the electronics inside.

As demonstrated at the end of the short, the reason the DP-75 has an audio out lead is simply for the alarm function, not for audio feedback of counts per minute.