How to choose capacitor values for a low pass filter

[blair321]

hi there i would be very gratefull if anyone could help.

im trying to work out some values for a low pass filter. the problem is the values for the capacitor I am not sure exactly what amount nf or uf are,
for example 1 nf or 10 uf
what is the exact number
any help would be appreciated

 

[chroot]

Those units are nanofarads and microfarads, respectively.

1 nF = 1 x 10^-9 F
1 uF = 1 x 10^-6 F

- Warren

 

[blair321]

warren
you are the best