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Two-circuit receiver

First Dutch commercial AC voltage radio with build-in loudspeaker. Rigid "Haagse Stijl" design by Otto van Tussenbroek (1882-1957). Casing: oak; front: black aluminium. The speaker cloth is still original but faded by sunlight. Made by Van der Heem & Bloemsma, The Hague. At this moment I own two of these radios. The radio with serial number 67032 is completely original. The pictures on this page show this radio. The radio with serial number 67996 was restored to almost its original state (see restoration report). This radio has a gramophone connection that is not present in earlier models (see picture below).

Otto van Tussenbroek
Data Valves Restoration report
Serial number: 67032/67996
Dimensions: 37,5 × 49 × 18,5 cm
Made in: 1930
Purchased in: 2005/2006
Click on a valve for more information

Circuit
In earlier models of this radio another valve set was used: the 506K, the B443 as amplifier, the E415 or E424 as detector and the E442 as HF valve.
Back
Date stamp on one of the condenser blocs: December 6th, 1930.
Back
With oak and aluminium back panels.
Side view
Showing the tiny volume control knob.
Connections
Above KY107 66763 without gramophone connection
Below: K107 67996 with gramophone connection
Picture in Radio-Expres, September 12, 1930 Advertisement for the Philips 4000 l.f. transformer that was used in the KY107 in Radio-Expres, September 19, 1930
The Erres KY107, picture from an Erres catalogue, 1930

Deze pagina is voor het laatst bijgewerkt op vrijdag 18 november 2011