The first
receiver of
his own design came on the
market in
the year
1922. The "Studio",
a receiver equipped with two
valves of the TM type, suitable
for the reception of waves of
200 to 4000
meters. This receiver
was
followed by a model that would
be decisive
for the success of
Vitus receivers:
the Mondial.
The Mondial
won the Grand
Prix du
Concours de
TSF in
1922.