3 results
tagged
resistors
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Pick the color stripes, pick the number of stripes, and it'll tell you what value the resistor you have in hand is.
A website that takes a parrticular frequency (in KHz) and a duty cycle (at least 50%, or on half the time, off half the time) and calculates the values of the two resistors and the capacitor required to generate that frequency using a 555 IC.