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Two-circuit radio

Oak cabinet, black aluminium front and bakelite knobs. Design by Otto van Tussenbroek. Made by Van der Heem & Bloemsma, The Hague. This firm made the same model using their own name, the H. & B. 34. Strangely enough there is another Erres KY111: a low tombstone model with a built-in loudspeaker (see pictures below.) The radio was marketed bij Lindeteves-Stokvis in the Dutch East-Indies in 1934.
Data Valves  
Serial number: 24357
Dimensions (w×h×d): 46,4 × 26 × 22,2 cm
Made in: 1931
Purchased in: 2006
Voltage: 125 V
   
Click on a valve for more information
With Erres loudspeaker (1930)
Back
Valves (left to right) C443, E424, E452T, 506K

A look inside. A second copper coil base is situated behind the mounting plate with resistors to the right, below the central capacitor block. The Philips 4000 l.f. transformer (below left) had to be repaired.

Advertisement for the KY111 tombstone in Het Nieuws van den Dag voor Nederlandsch-Indië, May 12th, 1934...

...and in the Nirom-Bode (1934)

This radio has the following valves: E446, E446, E443H and 1823. The radio uses resistance-coupling, as transformers would not have a great lifespan in humid conditions. The wave lengths are 12-40 meters, 30-85 meters and 75-200 meters.
Erres KY111. Picture from a leaflet

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