The first Philips
radio, made in the N.S.F. factories in Hilversum.
The technical design of the receiver is by ir. J.J.
Numans; it is the first radio equipped with a penthode.
The design of this
radio is, like that of the later receiver 2514, by ir. Louis Kalff, who also designed the
Philips disc loudspeakers. The style is "Nieuwe
Zakelijkheid" or "New Realism", a modern design,
that was not to everybody's taste. A small cabinet was
made by the Brandsteder furniture workshop
in Amsterdam, specially for this set.
In this cabinet the 2501 (or the 2502) could be placed, as
well as the battery eliminator. It is shown
here.
The wave ranges are 200-400, 300-600 and
1000-2000 meters. The built-in 2503 power supply unit works on 220
Volts in this radio. The radio also requires the
Philips
battery eliminator 372.
The radio
was
on display in the Van Abbemuseum in
Eindhoven from June 9th, 2012 until November 11th, 2012,
as part of an exhibition about the period 1924-1929.
The Philips
2501, a Brandsteder radio cabinet and a Philips 2003
loudspeaker at the exhibition, June 15th, 2012
Data
Valves
Circuit
Serial number:
23953
Dimensions (w×h×d):
31 × 19 × 13 cm
Made in:
± 1927
Purchased in:
2005
Sold in:
2024
Click on a valve for more
information
Click on the pdf-logo to
open
What does
it sound like?
Listen to a short sound clip of a Radio 10 Gold broadcast.
Side view (the
2503 power supply unit's cover still has to be placed)
The connecting cords between
the 2501 and the battery eliminator 373 have aluminium tags.
Advertisement for the 2501, made
in 1927 by Matthieu Clement
Advertisement for the 2501 by
Wladimir Bielkine, 1927
From a Philips product folder, 1927
An unopened box containing a French F215 with the
original seals still intact
French
advertisement for the Philips 2501 and 2501 by Matthieu Clement
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