866A
The 866 is a mercury vapor half-wave rectifier intended for high-voltage applications. The voltage drop is approximately 15 volts up to 150 Hz. To avoid unwanted shorts the tube must be operated in a vertical position and the filament preheated for at least 30 seconds before applying the plate voltage.
01Construction
02Operation
Under normal operating conditions the tube glows blue and mercury droplets are visible.
Sources and credits
This article is adapted from the Wikipedia article “866A”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- 866 mercury rectifier 1.jpeg by Pardo bsso, CC BY-SA 3.0
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