Hey now! Hang on a minute. I love Deltics, and am in fact waiting for a Bachmann sound fitted one to arrive (courtesy of the madkitten(when it's finally released)), but the point was. Does anyone know of a sound chip for an EE4SRKT? As far as I'm aware only two locos had this unit. The class 73 and 205. Please feel free to correct me if I'm wrong.