The world's first compact cassette recorder (Pocket Recorder) PHILIPS EL 3300 was developed in the Belgian PHILIPS factory in Hasselt. Lou Ottens, was the team leader in Belgium. Involved in the team were J.J.M. Schoenmakers and Peter van der Sluis (the cassette PHILIPS EL 1903, the mechanism, the Recorder EL 3300). Happy Birthday, Lou Ottens!