Pot help again

[JimBeed]

Now im just about to install the capacitor to the tone pot, then i realised, wait the packets dont say which is the 500k pot, and which is the 250k pot that i ordered 
now does anyone know how you can tell which is which.
the only differences i can see is in the middle of the bottom of each theres the inside of the pot which is either a black colour on one, or white on the other.
the other only difference is one has a number then 30 whilst the other has a number then 31.
So any help?
there both from warmoth

[Patrick from Davis]

If you are looking at the pot, with shaft pointing towards you, and the lugs down, there should be a small area above the shaft facing you that has A500K or A250K on it.  These can be under a little metal, but usually are discernible.  If the labels are not there, get a multimeter out and turn the shaft all the way one direction.  middle to one side will be 0 ohms, middle to the other side will be 250K or 500K depending on the pot.
Patrick

[dbw]

If 30/31 is the only difference in marking, you'll have to measure them, because I can't think what those codes would represent.

[JimBeed]

well also say 0817 on one and 0924 on the other but ive looked at other places and they say this is month and day i believe.
and Patrick the a500k etc isnt there, only says cts on the top, though thanks for the help.
Annoyingly i dont have a multimeter nor the money to buy one. as the tool buying has left me skint.
Ill wait till i get a reply from warmoth or find some other help incase.

the 250k was for the neck pickup and the 500k was for the tone, and i didnt want to solder the capicitor onto the wrong one.
as i believed 250 was better for single coil, whilst 500k was better for humbuckers and tone.
the bridge has a 500k push pull as its going to do series parrallel aswell.
just realised i found the 250 k packaging and to my mistake it did say on that which it was, if only hadnt taken it out of the packaging :/ ah wel my fault.
and my email to warmoth wasnt hostile thankfully as i thought for a start they hadnt given me any clue which was which.

[Cagey]

Take 'em to the local Radio Shack, or anybody like that who sells multimeters. Tell them you're looking to buy a meter because you have problems like this from time to time, and see if they'll do you a favor and measure the pots for you. It only takes seconds, so it's not like you'd be putting anyone out.

[JimBeed]

Actually think ill have problem solved, old bass teachers coming so likely he might have one, ill ask him to bring it, i dont mind putting the electronics off bit longer, need to wait for his help to position pickups best i can anyways.
Cheers though guys.

[BobR55]

The pot with the 31 is 500K, with 30 is 250K.