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Old October 29th, 2010, 07:48 AM   #3 (permalink)
HoodieMcFoodie
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Join Date: Oct 2007
Location: Tamworth, 'straya.
Age: 51
Posts: 7,825
Pretty much whenever you see a letter between two numbers in resistor values the letter is replacing the decimal point.

2M2 = 2.2M ohms
4k7 = 4.7k ohms
3r3 = 3.3 ohms
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