hifi engine

Akai 400ds

Hello, I have recently purchased a Akai 4000ds having found some old tapes that I made in the mid sixties with some of my mates in our fledgling band, my old grundig long ago bit the dust, that of course was easy to operate as it had built in speakers , now I have this machine I have no idea how to achieve playback or just what I need to do this, can anyone out there help this old man relive his past , if you could talk me through real slow would appreciate your patience, thank you