usb e kits presents
online calculator,converters and generators

Common length and distance converter

Inches,mm,feet and other converter

LM317/lm338/lm350 Voltage and Current regulator calculator

You can use this Voltage Regulator to calculate the output voltage for the LM317 / LM338 / LM350 family

zener diode calculator

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an online zener diode calculator.
just enter the values needed and find the resistor and the zener.

helical coil calculator

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HELICAL COIL CALCULATOR

hysterisis opamp calculator

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A simple online calculator for the hysterisis in an opamp as a comparator.