Casio SA-21

[Gordonjcp]

Do you know Ohm's Law?  I'm sure you can work out a solution to your problem...

[PolyPhuckin]

If by 4k7, you mean 4.7k pot, then I'm gonna try a 5kohm fixed resister to see if it works.

i do indeed, they're one and the same.

Do you know Ohm's Law?  I'm sure you can work out a solution to your problem...

True, here's a reference calculator for you http://www.the12volt.com/ohm/page2.asp & i recommend you have a little play around with this free program http://www.yenka.com/en/Yenka_Electronics/

Hope they help