How can I power a Sennheiser MKH 110?

Question

I have just bought a Sennheiser MKH 110. i want to use it is a field recording microphone but I don't know how to power it. People have successfully done this with a PP3 9v battery, the mic runs off 8v. I'm a complete novice with electronics but if I knew what components to get and had a shematic, I think I could build a power supply for it.