Antique radios, Old Time Radios
WL-787
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Country:
United States of America (USA)
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| Identical to |
WL-787
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| First Source
(s) |
Oct.1936 : -- Original-techn. papers. Soc Mot Pict Eng Paper
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Filament |
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| Description |
The WL-787 tube was designed by Westinghouse as a classroom demonstration device in the 1930's for use in school/university laboratories.
The anode is phosphor coated so as to indicate where the electrons are striking it. The pattern varies as the electron stream is controlled by the widely-spaced grid.
Changing the grid voltage varies the width of stripes of glow between the grid wires. introducing a magnet bends the electron beam and stripes.
First made in 1936.
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Dimensions (WHD)
incl. pins / tip |
69 x 254 x mm / 2.72 x 10.00 x inch |
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Just Qvigstad
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WL-787: Copy from unknown document
Howard Mariotti
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