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The New British Broadcasting System
What really made it work was the audio recording on magnetic tape. What
made the NBBS broadcast remarkable was a new recording breakthrough by two
Reichs-rundfunk Gesellschaeft (German radio) engineers. Drs. Otto von
Braurmuhl and Walter Weber found that by mixing a very high frequency signal
with the audio during recording, the reproduced signals were so good that it
became difficult to tell them from the live performance.
NBBS, which used commercial transmitters from Luxembourg, Belgium and
Scandinavia, relied on tape for virtually all of its programming. It was,
therefore, possible to air the same concert at the same hour from all of the
stations.
In September of 1944, the Minnesota Mining & Manufacturing Company in St.
Paul (3M), already producing coated "Scotch" pressure sensitive tapes,
received a special request from the Brush Development Company of Cleveland,
Ohio. The Brush company was "interested in obtaining tapes coated with an
emulsion containing a uniform dispersion of ferromagnetic powder," as the
inquiry stated.
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