In veneer walnut cabinet with black feet, Bakelite ornament in the shape of a rising sun in
front of the speaker, Bakelite knobs and Bakelite rim
around the wavelength scale. The design is by Otto van Tussenbroek.
For reception on medium wave and long
wave.
Connections for antenna, ground, pick-up
and extra loudspeaker at the rear. The back panel is
made of wood.
The knobs from left to right: wavelength
switch, tuning, on/off/volume control.
The radio chassis was also used in the
Erres KY117 and the Erres KY123.
The radio looks very similar to the Erres
KY126. The only difference in appearance is the slightly
lower center knob. Technically, however, the two devices
differ considerably. Just like the KY117 and the KY123,
the KY129 has a band filter, grid detection instead of
anode detection, an additional 1: 3 transformer between
the detector and the power tube and a larger 2158
Philips electrodynamic loudspeaker. The technical design
is by ir P.G. Zaaijer.
In this radio, instead of the Philips
loudspeaker mentioned above and in the diagram, an
American loudspeaker with field coil was chosen, as was
also used in later Erres receivers. The radio was
probably produced a little later in 1933 or in 1934.
The radio was made for the Belgian market
by Van der Heem & Bloemsma, The Hague.
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