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in devices such as battery chargers until it was replaced by selenium diodes before World War 2. Alterations to image: removed aliasing artifacts (crosshatched lines) due to scanning of halftone photo using Gimp FFT
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Two
General Electric Tungar rectifier bulbs from 1917. The lefthand one is rated at 2 amperes and the right at 6 amperes. These consist of a glass bulb filled with low pressure argon gas, containing a tungsten
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rectifier tube, allowing it to rectify low voltages. It was used as a low voltage
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Click on a date/time to view the file as it appeared at that time.
188:, General Electric Corp., New York, Vol. 20, No. 3, p. 209, Fig. 1
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Commons is a freely licensed media file repository.
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
