单词 | lighting circuit |
例句 | You can’t use two smart switches to control one lighting circuit, especially if you want to use dimming. How to choose between smart lights and smart switches 2022-06-14T04:00:00Z The needle is charged to a potential 237 of 50 to 200 volts by means of a dry pile or voltaic battery, or from a lighting circuit. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z This trigger could be actuated by an excess of current—say the connecting of a hundred and ten volt lighting circuit on the line. Whispering Wires There are many other styles of center grinders on the market, some of which are driven by a small belt from the cone-pulley and others by electric motors which are connected with ordinary lighting circuits. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. By this time, incandescent lighting circuits in large cities were sufficiently extensive to make such installations practical. Elevator Systems of the Eiffel Tower, 1889 With a weak flicker the emergency lighting circuit came on. The Ethical Engineer It should, however, be used only where direct current lighting circuits are available. The Automobile Storage Battery Its Care And Repair If he dared speak in his own defense there would be a jumper to the street lighting circuit and a seventh burnt out hulk in the police morgue. The Velvet Glove “I shouldn’t wonder if in the next twenty or thirty years we shall be able, by means of appliances like this new power vacuum tube, to get our power from the ordinary lighting circuit.” The Radio Boys Trailing a Voice or, Solving a Wireless Mystery Provision has been made for using the track circuit for lighting in emergency if the regular lighting circuit should temporarily fail. The New York Subway Its Construction and Equipment Some one had connected its wiring with the electric lighting circuit, and the tiny coils were fused and burned into solid little cylinders of copper. The Taming of Red Butte Western By an ingenious device, worked as a call signal from the transmitting station, the electric waves converted a lighting circuit for this purpose. The Boy Inventors' Radio Telephone If the lighting circuit gives 110 volts he can connect eleven 10-volt lamps in series. The Boy Mechanic: Volume 1 700 Things for Boys to Do The apparatus is connected at the points, BB', with the lighting circuit. Scientific American Supplement, No. 595, May 28, 1887 The signal lighting is supplied by a special alternating current circuit independent of the power and general lighting circuits. The New York Subway Its Construction and Equipment But whatever you do, never use a current from a lighting circuit on a tube of any kind that has a rated plate potential of less than 100 volts. The Radio Amateur's Hand Book No," he admitted, "but did you ever hear what you could do with a microphone, a rheostat, and a small transformer coil if you attached them properly to a direct-current electric lighting circuit? Guy Garrick "I suppose this is a direct-current lighting circuit," he remarked, thoughtfully regarding his find. The Dream Doctor The current is of 120 volts or the same as that used in an ordinary incandescent lighting circuit, but is alternating and of 4,000 amperes. The Story of Electricity For the lighting circuits a flexible steel conduit is used, and a special junction box. The New York Subway Its Construction and Equipment You can, however, use 110 volt direct current from a lighting circuit as your initial source of power to energize the plate of the vacuum tube oscillator of your experimental transmitter. The Radio Amateur's Hand Book On the side and upper roofs, over these conduits for the lighting circuits, a strip of sheet iron is securely nailed to the roof boards before the canvas is applied. The New York Subway Its Construction and Equipment Don't connect the filament to a lighting circuit. The Radio Amateur's Hand Book |
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