Made in 1927-1928,
probably
by a small Belgian (Walloon) factory or workshop.
All binding posts are situated on the control panel: on the
left binding posts for the frame aerial, in the middle
connectors for the different voltages, 4V, 40V and 80V,
on the right jacks for headphones and loudspeaker. The
arrangement of the control panel is perfectly symmetrical.
Data
Valves
Circuit
Serial number:
None
Dimensions:
29,5 × 61,5 × 30 cm
Made in:
1927-1928
Purchased in:
2007
Sold in:
2021
Click on a valve for
more information
Click on the circuit to enlarge
What was broadcast in 1927?
Listen to "Blue
Skies" sung by Josephine Baker,
recorded January 12, 1927
Inside
Valves from left
to right: mixer, two i.f. tubes, detector, and two l.f.
tubes. Situated in the middle are three adjustable i.f.
circuits. Oscillator coils are by Belga, condensers and
resistors by Alter, Mikado and French firm Wireless.
Transformers by Cema and Transfolina (a brand name of
S.B.R., Société Belge Radio-Electrique). Tuning knobs
(with fine tuning) are also by S.B.R.
The Transfolina l.f.
transformer
type T16A (1 : 2.5)
Tuning knob, page from an S.B.R.
catalogue, 1928
Tuning knob with its original box
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dinsdag 06 september 2022
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