Listen to "Oome
Ko heeft radio" sung by Kees Pruis, with orchestra,
recorded in 1927
The loudspeaker
was
on display in the Van Abbemuseum in
Eindhoven from June 9th, 2012 until November 11th, 2012.
The Philips 2003 on a Brandsteder radio cabinet (a Philips 2501
is inside) at the exhibition. June 15th, 2012.
Back
Back, detail
Back, original
"PR" (Philips Radio) seal
Another disc loudspeaker
Back
Loudspeaker
plug with tone corrector
Plug with tone
corrector, the Philips 4004
This correcting device was used in
combination with output pentodes like the B443. Due to
the higher internal resistance of these tubes the
loudspeaker sounded too shrill The built-in capacitor
(10nF)
lowered the amount of treble.
French postcard
Ir Louis
Christiaan Kalff,
(1897–1976) did a lot of design work for Philips. Kalff
started his career in 1925 as chief of the Philips
Advertising Studio. He made
designs for posters, advertisements, brochures, folders
and package materials.
He also designed radios (the Philips 2501, 2502 and
2514) and disc loudspeakers (e.g. the Philips 2003). He
was an architect as well and in this capacity designed a
number of Philips factories and
the Evoluon.
Kalff was active
as designer of posters (Holland-America line,
Jaarbeurs Fair in Utrecht, Calvé) and exhibitions. As an
architect he designed the Sterrenkundig
Observatorium (Astronomical Observatory) in Eindhoven.
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