Filter CalculatorsOpamp CalculatorsSound calculatorsOther stuff
  • Passive 6dB RC Filter
  • Passive 6dB LR Filter
  • 18db 2way speaker crossover

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  • Frequency-Time
  • SPL to distance
  • SPL - Pressure

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  • Ohms law
  • Resistor colours
  • Polycap colours
    • DiodesTransistors
  • Germanium diodes
  • Rectifier Diodes
  • Switch Diodes
  • Schottky Diodes
  • Zener Diodes
  • Other Diodes
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  • Germanium Transistors
  • Bipolar silicone low power Transistors
  • Other silicone low power transistors
  • Silicone Hi power Transistors
  • Dechiffer Transistor codes
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