Solid beech cabinet, coloured reddish
brown. Arbolite front,
top and side panels. Both tuning scales are
illuminated by bicycle lamps. The cabinet was a bit rickety and had open
joints. Furniture restorer Ruben Spelbos, Utrecht, restored
Knobs below the scales: primary and
secondary tuning. Small knob in the middle: push/pull wave length
switch (medium wave/long wave), above that, a knob for reaction
control. A volume
control knob is situated at the right hand side of the
cabinet. Antennas of different length can be connected at the
left hand side. A loudspeaker and a gramophone player
can be connected at the back of the receiver.
The original price of the radio was f 195,-.
The radio was also
supplied with an electrodynamic loudspeaker, type 5085.
The price of this loudspeaker was f 125.(picture right).
The Helios dynamic loudspeaker and the excitation system
could also be purchased separately and installed in a
home made cabinet.
The receiver was made using three
components that became known as the Weco block system
(power block, coil block, and amplifier block).
Listen to "Goin'
To Get 'Cha" by Fess Williams and his Royal Flush
Orchestra, recorded in December 1929
Back of the chassis
On the right the Weco Triplo A transformer can be
seen. There were two types: The Triplo A for the Philips tubes
C142, F215 and D142 and the Triplo AE for the Philips 4 volts
the original schematic this transformer is called "Triplo Combinatie"
(filament voltage, plate voltage and choke)
Back with metal backpanel
The backpanel is a replica, made after an
original backpanel from the Radio Museum in Reusel.
Top view of the chassis
The three main components are clearly visible
here. The purple coil block is made of a zinc like alloy.
The interior parts of the coil block,
photographed from two angles. On the left, the primary torodial
coils for medium and long wave
can be seen, on the right the
secondary coil and the
reaction coil are visible. The wave length switch is mounted on
the partition between the two coils.
Bottom of the coil block with serial number
(330), production date (December 27th, 1929) and autographs of
the maker and the inspector.
In a Belgian catalogue the
receiver is shown, together with an electrodynamic
loudspeaker. The radio is called type 5013 here.