phototuben.
/ˈfəʊtəʊtjuːb/, /ˈfəʊtəʊtʃuːb/, U.S. /ˈfoʊdəˌt(j)ub/ Electronics.
A photocell in the form of a vacuum tube or gas-filled tube with a photoemissive cathode and an anode.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun] > phototube
phototube1930
photomultiplier1940
the world > matter > physics > electromagnetic radiation > electricity > voltage > photovoltaics > [noun] > photocell > specific types of cells
phototube1930
caesium cell1931
1930 Electronics 1 418/1 (heading) Phototube voltage supervisor. An aid to tube production.
1964 Oceanogr. & Marine Biol. 2 358 It is only since the adoption by biologists of the multiplier phototube..that more precise measurements of the spectral composition of luminescence..have become feasible.
1973 Nature 12 Jan. 132/2 The emission was observed at right angles..and detected photoelectrically with a ‘1P28’ phototube.
1996 Sci. Amer. Jan. 7/1 The new multiplier phototube, called the image orthicon, picks up scenes by candle- and matchlight.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1930