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Apple ][ Joystick capacitor calculator
Input the resistance of your potentiometer in kΩ (kohms)
resistance in kΩ:
Calculating capacitance for a
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kΩ pot:
Solve for x:
10 kΩ * (x + 0.022μF) = 150kΩ * 0.022μF
x + 0.022μF = (150kΩ * 0.022μF) / 10kΩ
x = (150kΩ * 0.022μF) / 10kΩ - 0.022μF
x = 0.308 μF (microfarad)
x = 308 nF (nanofarad)
x = 308000 pF (picofarad)