PHILIPS IDEEZET Gas Triode

The Philips IDEEZET tube from 1918 was Philips' first radio tube.
Between 1907 and 1917, Ir. Hans Henricus Schotanus à Steringa Idzerda worked on further developing the triode vacuum tube that had already been invented in America in 1906 by Lee De Forest. The Eindhoven light bulb factory of Philips took the tube into production in 1918 under the name PH-IDZ (Philips Ideezet). The element design was similar to the original DeForest audion. The tube had a limitation, because it was only suitable for transmitting Morse code.

Fiche technique • Data sheet • Datenblatt: IDEEZET.pdf.

 

Longueur • Length • Länge : 119 mm • 4" 3/4
Diamètre • Diameter • Durchmesser : 23 mm • 15/16"

 

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