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Calibrating Geiger Counters with an Analog scale (Ludlum anyone?) for accurate CPM rate reading using a Function Generator. This method calibrates the electronics only and doesn't account for detector efficiency and actual
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How to use a Geiger Counter - YouTube
How To Use a Geiger Counter - Olympic Health Physics
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LUDLUM GEIGER COUNTER # 2 3 12 14C : MOD-KIT TO ADD FLASHING LED $9.50 + S/H | eBay
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