Calculators

Wavelength Calculator

Wavelength = (speed of light) / (frequency in cycles per second)
In case you didn't know, for 1/2 Wavelength divide by 2 and 1/4 wavelength divide by 4
Frequency in MHz:
Wavelength: Meter(s)
Wavelength: Inch(es)
function CalcLM317() { var R1 = document.getElementsByName("R1")[0].value; var R2 = document.getElementsByName("R2")[0].value; var Vout = 1.25 * (1 + (R2/R1)); document.getElementsByName("Vout")[0].value = Vout; }

LM317 Voltage Regulator Calculator

LM317
Vout = 1.25(1 + R2/R1)
Fill out R1, R2
R1: Ohms
R2: Ohms
Vout: Vdc