Five-valve, three circuit AC receiver.
Single-knob tuning and built-in
electrodynamic loudspeaker. The radio was
Belgium, by Stokvis-Radio.
was part of the Brussels-based Stokvis
et Fils, 15-19 Avenue de Dixmude.
Otto van Tussenbroek
likely it a radio that was sold in
Belgium under the name Stokvis-Radio
The high profile cabinet with rounded
corners, designed by Otto
van Tussenbroek (1882-1957), is made of
cabinet differs from the KY123, which
the radio strongly resembles.
In the brochure material of Erres and
the articles about the device in the
newspapers, it is stated that the
cabinet is made of polished walnut.
The radio has no back
panel but only two black triangular
metal corner reinforcements at the top.
The knobs from left to
right: on/of/tone control, tuning,
volume/wavelength switch. The dial (scale
0-100, with the wavelengths of long and
medium wave in meters) is illuminated by
the Philips scale lamp 8046 (6 V, 0.5
At the rear, the antenna
and the earth connection, a gramophone
connection and a connection for an
On the housing of the
tuning condenser there is a stamp with
the text " Stokvis-Radio", with a
pencilled text in the "Type" box: "116D"
and in the "No" box: "856B". The chassis
has a stamp with the number "003808".
The condenser housing has a Belgian "Licence
SBR SEM" sticker, indicating that the
device was sold in Belgium. A Philips
sticker is fitted on the side of the
condenser. One of the
capacitor blocks has a date stamp with
the date July 26th, 1932.
The circuit of the radio
is the same as that of the Erres
KY123 en KY129.One differenceis probablythe power tubethat was used.
butthatradio hasa robustoutputtransformer. In
theKY123,the Philips 2157
loudspeaker wasused. As this speakerhas a smaller
seems impossible thattheE443Htube wasused asapower tube.
At 40mA, the
windingwould haveto absorb nearly1 W;
at 20mA this is much lower
The powertube therefore likely
has been a C443or aC453.
It was made by
Van der Heem & Bloemsma in The Hague.