BS 1852

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The British standard 1852 is a standard coding method for specifying resistance values, with R for Ohms, M for megohms, and K for kilohms. Any number that comes after the letter means it's a decimal point. For example, 5K4 means 5.4 kilohms, 5R2213 means 5.2213 ohms, 9M means 9 megohms.

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