Constants   Equations   Subjects   Periodic Table   Conversions   SI Units   Symbols Science Subjects Electronics : Calculators : 555 Timer   Back to the category listings...   Below are two calculators to enable to to calculate what values of resistors and capacitors to use to get a specific frequency, a specific delay period or vice-versa from a 555 timer. Enter the values as a number (ie. 4.5 or 1.6e-3). When enough values have been completed, the missing values will be calculated for you. Note: Requires a JavaScript capable browser to work   - NE555 Astable Mode Frequency Hz Duty Cycle % R1 R2 C1 F   - NE555 Monostable Mode Period s R1 C1 F   If you have anything to contribute, simply e-mail it to me at science@tcaep.co.uk. I look foward to hearing from you!

Top [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O M O M Y ] [ S E A R C H ] [ Constants ] [ Equations ] [ Subjects ] [ Periodic Table ] [ Conversions ] [ SI Units ] [ Symbols ]   © 1997 - 1999, Jonathan Stott