I'm just browsing for potential buys online - can anyone identify this connector? It sort of looks like XLR, but I don't know, the image isn't very good quality. Also, there's another cable with dual 1/4 stereo connectors (left/right channels). I believe this cable was used to for tape decks of the time. Are there any simple adapters I could buy/easy methods to convert either of these cable types to use with a more conventional XLR connection or even 3.5mm or would dealing with this be too much hassle?