Material: Oak cabinet with two diamond
shaped coromandel wood decorations and
ebonite front.
A rheostat, on the left, controls the HF
valve, the knob on the right hand side
is for reaction control. The two big
knobs are used for primary and secondary
tuning. Both knobs have fine tuning. A
wave range switch is situated between
these knobs. The original price was f
172.50.
Data
Valves
Circuit
Serial number:
none
Dimensions (w×h×d):
48.5 ×
23 × 23.5 cm
Made in:
1928
Purchased in:
2011
Click on a valve for more
information
Click on the circuit to
enlarge
What was broadcast in
1928?
Listen to "Kijk je
's avonds even naar de sterren!" by Dajos Bela and
His Dance Orchestra,
recorded in 1928.
Back, before restoration
The AC mains section of the
receiver can be seen on the right. It shows a Philips 451
mercury vapour-filled rectifier that does not belong there. The
right tube is a 373
rectifier. A Ferrrix filament transformer can be seen
behind the C142 valve. This is a strange addition, because the
filament windings of the original transformer were undamaged. A
home made Bekius variometer for inductive coupling is hidden behind the
cardboard cover.
Back, after restoration
The extra filament transformer was removed and
some of the wiring was replaced.
Chassis (below)
The interstage transformer is by Körting, the
tuning condensers were made by Brandes
AC mains section
Chassis (top view)
Advertentisement in Provinciale
Overijsselsche en Zwolsche Courant, September 28, 1928
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