The name Erres
was derived from the initials of R.S. Stokvis, of
trading-company R.S. Stokvis & Zn in Rotterdam. This
trading-company made technical products since the end of the
nineteenth century.
Using the name Erres Radio, Stokvis started building and selling radios
around 1923. An advertisement for the first radio, the one valve
receiver Erres 1, appeared in the radio magazine "Radio-Wereld",
that year. For the first series of radios Erres used parts made by different factories: Dutch
N.S.F., the English Sterling factory, and later Dutch factories Van der Heem & Bloemsma and Philips. The
K.W.S (1928), KY103 and KY104 (1929) were the
first AC radios. Erres claimed to have made the first
commercial Dutch AC
radio with a built-in loudspeaker, the
KY107.
In 1926, Van der Heem &
Bloemsma is the most important radio maker for Erres. After the recession of 1929,
Erres' results decrease and the influence of Philips
increases. In 1930 Philips becomes an important share-holder,
but the factory continues to make radios and televisions, using the Erres
brand name, with mainly Philips components. In the mid sixties Philips
takes over Erres.
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