Compact Cassette Report - Philips One-Hole Cassette vs. Compact Cassette Norelco Philips

It was probably like a crime thriller. The Americans knew nothing. The Japanese knew nothing about it. Not even the two works of PHILIPS in Vienna and the Belgian Hasselt knew anything from each other. In Vienna they were working on a hi-fi single-hole system. With the single-hole cassette they had experience in the field of dictation systems. Now a high-quality system for private use should be de...