power

A friend gave me an mz-r700 a few weeks ago without a power adaptor. Wondering if one of those generic multiprong adaptors would work, and if so, if it would charge Energizer® rechargeable batteries (NiMH) I have. Basically, can I ever plug this machine into an outlet without the super-special Sony®© adaptor? And if not, how easy/expensive will it be to purchase said adaptor? Thanks btw, the headphones as microphones trick rocks my little world...