Importance of resistor values

[abador]

Hey, I don't have a large variety of resistors so I have used what I have. I have a 10 ohm, 20 ohm, 33 ohm, 1 Kohm and a 10 Kohm. Is this a good starting point? How close should the resistor value be to the value stated in a schematic?

[Hero999]

It depends on what the resistor does.

If it's something like a a current limiting resistor in series with an LED or transistor's base then it's not critical so you can go 10% either way but if it's in a potential divider which determines the output voltage of a regulator, such as the LM317, it's more critical.

If you don't understand the schematic then use the exact value or seek advice from someone who does. Anyway I think at least having a basic understanding of a schematic should be a prerequisite for building it.