You will want to take a look at this simple map I made while reading: http://imgur.com/FMeZSDs

Each G on the map represents a gramophone while G1 represents the first one guaranteed to be in the center of the station. But the 2nd and 3rd gramophones are a bit random with only 4 different spots to spawn in.

Hope this makes a painful section of the game into a cakewalk.