| 单词 | rheostat |
| 例句 | “It’s more of a rheostat than a switch, really.” The Name of the Wind 2007-03-27T00:00:00Z His eyes don't leave the diagram, and he taps the sheet and says, "Get a reading on this rheostat, David. If the dial's out of alignment, that could double or triple the current getting past." Things Not Seen 2002-01-01T00:00:00Z What is revealed is hardly as important as being made to wait for it: a pile of wires and rheostats transformed into a sculpture that breathes in an endless night. New York’s Poet of Light and Letters 2023-04-20T04:00:00Z “It’s not an on-off switch. It’s a rheostat,” the former senior official said. U.S. diplomats in Afghanistan face daunting, dangerous mission with little military backup 2021-07-17T04:00:00Z Sensing by this system therefore serves as a rheostat for the metabolic activity of the microbiota and its exposure to diet and xenobiotics, as well as for the presence of mucosal infections. The microbiome and innate immunity : Nature : Nature Publishing Group 2016-07-05T04:00:00Z Giant microphones, vacuum tubes, capstans, switches, rheostats and broadcast towers erupted around you in a circular photomural 67 feet in diameter. At 30 Rock, Recreating a Rotunda With a Nod to the Past 2014-06-25T04:00:00Z A rheostat can be added to the motor circuit to regulate the speed. Hertzian Wave Wireless Telegraphy 2012-01-09T03:00:20.570Z Then he manipulated the voltage of the “B,” or high voltage, dry battery, and also varied the current flowing through the filament by means of a rheostat connected in series with it. The Radio Boys at Mountain Pass The Midnight Call for Assistance 2012-01-02T03:00:17.697Z An adjustable resistance or rheostat is connected in parallel with the field winding as shown in fig. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z And that force can be very easily varied by the use of an instrument called a "rheostat" or variable resistance. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z In this case rheostats must not be used for dimming the light because of the attendant changes in color or quality of the light. Visual Illusions Their Causes, Characteristics and Applications 2011-06-02T02:00:25.247Z Lamp and rheostat are furnished at factory prices. Microscopes and Accessory Apparatus Catalogue No. 40 2011-04-14T02:00:42.743Z He invented the rheostat and improved the resistance balance, invented by S.H. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z The method of varying the current through the field coils by means of a rheostat inserted in series with the field winding as shown in fig. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z The rheostat is to the electric current what the valve is to the steam; it can be opened and closed, more or less, as necessary. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z A moment later he attached the bulb to a wire that connected with a little rheostat or resistance coil and thence, in turn, to an electric-light socket. The Social Gangster To regulate the current a rheostat is necessary. Microscopes and Accessory Apparatus Catalogue No. 40 2011-04-14T02:00:42.743Z The starting rheostats are adapted to allow resistance to be removed from the motor armature circuit, allowing the armature to gain speed and increase its counter-electromotive force without overheating. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. A rheostat is placed in series with the field coils, and by varying the resistance, more or less current will flow through the coils, thus regulating the field strength. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z Just a touch to the handle of the rheostat and we notice that bar 102 shows signs of life. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z First Craig made a connection with an electric light socket from which he removed the bulb, cutting in a rheostat. The Social Gangster It worked on a delicately adjusted and enclosed rheostat; there was nothing that could be substituted for it. Astounding Stories, August, 1931 All the master components were open, a rheostat appearing to be the primary control. All In The Mind The ends of the series winding are connected by a shunt containing a rheostat. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z This is done by making each crank operate a variable resistance or rheostat. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z It made Benedict think of a light bulb connected through a rheostat, with someone turning that rheostat, turning it until the circuit was well overloaded. Time Fuze Buy a storage battery and a small slide-wire rheostat, that is variable resistance, to use in the filament circuit. Letters of a Radio-Engineer to His Son He adjusted his rheostats and closed the circuit through the new magnet. Astounding Stories, March, 1931 The current induced in the armature, divides and flows through the two paths thus offered, the amount flowing through the shunt being regulated by the rheostat. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z He moved the rheostat under his hand, and the thunder slackened. Astounding Stories of Super-Science, June, 1930 Rushing back to his primary unit, with the thought that perhaps by some chance he had not fully closed the rheostat, he looked at the cross. Astounding Stories of Super-Science, August 1930 Assemble them so as to make a rheostat with a range of 0-1000 ohms by steps of 10 ohms. Letters of a Radio-Engineer to His Son He manipulated the rheostat that controlled the current through the electromagnet, and continued to read his instruments. Astounding Stories, March, 1931 A rheostat is placed in shunt with the series winding so that the current passing through the winding may be regulated to control the voltage of the machine. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z The inventor moved a rheostat, and from behind them the stern blast rose to a tremendous roar. Astounding Stories of Super-Science, June, 1930 Calmly, though every fiber of his being was at breaking stress, the young scientist opened the rheostat. Astounding Stories of Super-Science, August 1930 You can assemble a resistance which will do fairly well if you will buy a small rheostat which will give a resistance varying by steps of ten ohms from zero to one hundred ohms. Letters of a Radio-Engineer to His Son A power pack controlled by a simple rheostat in the palm of the left-hand glove, but whose energy derived from the electron-kinetic properties of pent and shielded tritium. Zero Data R is the shunt field rheostat for regulating the current through the shunt. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z Clean commutator with fine sandpaper.Wrong connections of field rheostat-check connections with diagram.Open circuit in field rheostat. The Automobile Storage Battery Its Care And Repair Behind the panel was a tall cylinder wound with shining copper wire, and beside it another panel, upright, fairly bristling with knobs, contact points, potentiometers, rheostats and switches. Astounding Stories of Super-Science, March 1930 There ... just about there ... by the rheostats, where the four red lights and the two green made a baleful pattern against the black metal skin. We're Friends, Now One hand-end fumbled at the palmed rheostat, then dropped to pick up the disarmer. Zero Data From daybreak until far into the night, with radio receivers clamped over their ears, the three twisted dials, adjusted rheostats and listened in on long and short wave bands. The End of Time Figures 41 and 42 show the wiring of two charging rheostats which may be used instead of the lamp banks shown in Figures 39 and 40. The Automobile Storage Battery Its Care And Repair When Dirk’s altimeter indicated seventy-five hundred feet he turned the nose of his ship eastward and adjusted his rheostat until his motors, fed by wireless current, were revolving at top speed. Astounding Stories of Super-Science, March 1930 He passed a low current into the wires, through a rheostat, with startling results. Spawn of the Comet Fumbled again at the rheostat while the figure straightened up to point the glistening projector at Jason's belly. Zero Data As he advanced the rheostat the tubes glowed brighter, bathing the room in unearthly light. The End of Time In these two rheostats the live wire is connected to the rheostat resistances in order to prevent short-circuits by grounding any part of the circuit beyond the rheostats. The Automobile Storage Battery Its Care And Repair Once in the westbound lane, he headed his plane toward Manhattan and threw his rheostat wide open. Astounding Stories of Super-Science, March 1930 Jack took off the headpiece, threw the rheostat back to zero, and looked about him, as if dazed. The Radio Boys with the Revenue Guards Shielding his eyes from the glare with an upraised forearm, Powell began stepping a rheostat up to more and more power. Devil Crystals of Arret It has four binding-posts,—making it possible to energize the field or armature separately,—and so it can be used in circuits with reversers and rheostats for experiments. How Two Boys Made Their Own Electrical Apparatus Containing Complete Directions for Making All Kinds of Simple Apparatus for the Study of Elementary Electricity These rheostats may be bought ready for use, and should not be "homemade." The Automobile Storage Battery Its Care And Repair In practice substantially all of the regulation is effected by varying the position of the controlling lever on the regulating rheostat. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man A current of 2-1/2 ampères is needed, and is conducted to the coils in the stage through the rheostat. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Marlowe began stepping the rheostat up gradually to more power, advancing it with cautious slowness to avoid any chance of a repetition of the previous accident. Devil Crystals of Arret They can do everything the big motors can do, and if used with the rheostats, reversers and other apparatus in the outfits, the student will have a whole motor laboratory. How Two Boys Made Their Own Electrical Apparatus Containing Complete Directions for Making All Kinds of Simple Apparatus for the Study of Elementary Electricity Each charging line is generally provided with a separate rheostat so that its charging rate may be adjusted to any desired value. The Automobile Storage Battery Its Care And Repair The rheostat, which is in the right part of the figure, has five sliding contacts, each of which can be connected with ten different points. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man A rheostat added to the accumulator makes it possible to graduate the light at one's leisure and cause it to pass through all the shades comprised between cherry-red and incandescence. Scientific American Supplement, No. 488, May 9, 1885 But within a wide range, the switchboard rheostat can be used for voltage regulation. Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine To regulate the strength of the current a rheostat was placed in the circuit. Fragments of science, V. 1-2 Each circuit is provided with a separate rheostat and ammeter. The Automobile Storage Battery Its Care And Repair The various numbered points on the rheostat R2, are connected with the binding posts on S10, and each can in turn be connected with a or A, b or B, etc. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man With enlarged hands at the ends of almost fleshless arms he clutched at the knobs of rheostats and the cranks of transformers, hesitantly, spasmodically, and without ever quite reaching anything. In the Control Tower Turn the rheostat handle gradually; as you advance it, the voltmeter needle will advance. Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine What you mean to say," Biff broke in, "is that the juice from this fifteen cent battery goes through this cheap rheostat to those meaningless coils in the model and absolutely nothing happens. Toy Shop The two terminals near the top of each rheostat are connected to one charging circuit. The Automobile Storage Battery Its Care And Repair At the left is the regulating rheostat and motor and snap-switch. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man It is the form usually adopted for rheostats. Electricity for Boys Regulating Voltage at Switchboards The voltage of any given machine may be regulated, within wide limits, by means of the field rheostat on the switchboard. Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine Ives went to his desk, clicked the transmitter and receiver switches on and off, moved a rheostat or two. Breaking Point The two terminals near the lower end of each rheostat are connected to the generator. The Automobile Storage Battery Its Care And Repair To vary the current passing through the manganin heating coils in the air-spaces next the zinc wall, a series of resistances is installed connected directly with the rheostat R2 in fig. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Thomson greatly simplified the galvanometer, and Wheatstone invented the rheostat, a means of measuring resistance, about 1850. Electricity for Boys If it registers too high, reduce the voltage of the generator slightly, by means of the field rheostat connected to the generator. Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine The best way to add salt to a liquid rheostat is to make a strong solution in a separate vessel and add as much of this solution as is needed. Scientific American Supplement, No. 1157, March 5, 1898 A simple discharge rheostat is shown in Fig. The Automobile Storage Battery Its Care And Repair The details of these resistances and their connection with the rheostat are shown in fig. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man He placed a small rheostat in the circuit so that the strength of the current might be regulated. Tom Swift and His Giant Telescope The loss at half-load would be about 9 volts, and the rheostat would be set permanently for 119 or 120 volts. Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine Liquid rheostats are ever so much more satisfactory for alternating than for direct current testing. Scientific American Supplement, No. 1157, March 5, 1898 For making the heavy discharge tests a rheostat of the carbon plate type is suitable. The Automobile Storage Battery Its Care And Repair One end of the rheostat is connected directly with the 110-volt circuit. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man That gives you your direction, and the rheostat here at the belt changes the velocity. Islands of Space This is done by means of a starting rheostat, similar to the regulating rheostat on the dynamo switchboard. Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine Each had its switches, wheels rheostats, and levers. The Status Civilization Such a rheostat is on the market and may be purchased complete with ammeter and leads for attaching to the battery. The Automobile Storage Battery Its Care And Repair Diagram of rheostat and resistances in series with it 36 19. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man To the left of this coil was a large relay switch, and a rheostat control. The Black Star Passes Now put the other foot on the rheostat and let the left elbow gently rest on the deodorizer. You Should Worry Says John Henry The telescope, which is held in the hand, weighs only 25 oz.; and the case containing the battery, rheostat and milliammeter, which is slung from the shoulder, only 10 lb. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel See if machine will build up with field rheostat cut out. The Automobile Storage Battery Its Care And Repair He kept on turning the rheostat until the incoming voices seemed about the same pitch as his own voice. Man of Many Minds He waited, but when nothing more startling occurred, he gave the rheostat a sharp turn. The Black Star Passes Lou had the tractor turned and the rheostat all the way to the floor. Badge of Infamy By means of the rheostat the current through the lamp is adjusted Page 221 until the brightness of the filament is just equal to the brightness of the image produced by the lens L, Fig. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The equipment for constant current charging uses a lamp bank or rheostat to regulate the charging current where direct current is available, and a rectifier or motor-generator set where only alternating current is available. The Automobile Storage Battery Its Care And Repair Never turn up the rheostat without watching the lamp. Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery Slowly he closed the rheostat and put the power into the coil. The Black Star Passes Throwing in his rheostat he sent an "O.K" in reply, and waited expectantly, pencil in hand. The Man Who Rocked the Earth The load on the generator is measured by carefully calibrated switch-board instruments, and is regulated by a specially constructed water rheostat which stands in front of the building. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 The current then flows through the battery, through the rheostat and to the graphite electrode. The Automobile Storage Battery Its Care And Repair The rheostat having been previously adjusted to heat the electrode to nearly white heat, the circuit is broken and the electrode introduced cold. Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery He opened the coil circuit and closed the magnet circuit at half voltage, then again he increased the current through the rheostat. The Black Star Passes At last he threw over his rheostat and the hum of the rotary spark rose into its staccato song. The Man Who Rocked the Earth The field strength of the electromagnets, controlled by rheostats, instantly shaped the charge into a glowing ball of fire! Tom Swift and The Visitor from Planet X For making starting ability discharge tests at high rates, a carbon plate or similar rheostat is most suitable, and such rheostats are on the market. The Automobile Storage Battery Its Care And Repair The switches which open and close the power circuits through motors and rheostats are called contactors, each comprising a magnetic blow-out switch and the electro magnet which controls the movements of the switch. The New York Subway Its Construction and Equipment The current from the battery, B, traverses the selenium plates and the bobbins of the magnet, M, and returns to B through the rheostat, W; and the same occurs with the current from B'. Scientific American Supplement, No. 508, September 26, 1885 By the introduction of a loop in the circuit, containing a rheostat, two strengths of current and consequently of stimulus intensity were obtained, either of which could be employed as desired. Harvard Psychological Studies, Volume 1 Containing Sixteen Experimental Investigations from the Harvard Psychological Laboratory. The former is an alternating-current generator; the latter is a rheostat. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The currents that supply these lamps are brought over two different circuits, in which are interposed rheostats that permit of graduating the intensity of the light at will. Scientific American Supplement, No. 803, May 23, 1891 The rheostat boxes themselves are also insulated from the angle iron supporting them. The New York Subway Its Construction and Equipment As for the rheostats, W W', their object is to correct variations in the selenium's resistance and to balance the resistances of the two corresponding circuits. Scientific American Supplement, No. 508, September 26, 1885 The introduction of resistance by means of the rheostat, R, was frequently a convenient method of correcting the chronoscope. Harvard Psychological Studies, Volume 1 Containing Sixteen Experimental Investigations from the Harvard Psychological Laboratory. The outer ends of the five platinum wires are soldered to ordinary copper wires and connections made to various points on a rheostat as shown. The Boy Mechanic: Volume 1 700 Things for Boys to Do These iron contacts are connected with the divisions of a rheostat, R, arranged in a tight compartment surrounded with paraffine, near the tube. Scientific American Supplement, No. 598, June 18, 1887 As a matter of fact, powdered carbon and plumbago had been used in making small adjustable rheostats by M. Clerac, in France, and probably also in Germany, as early as 1865 or 1866. Heroes of the Telegraph Further elaboration of this method was made later by the addition of rheostats, condensers, and local opposition batteries on long lines. Edison, His Life and Inventions Its high electrical resistance makes it valuable for regulating devices and rheostats. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon A resistance for the arc may be made by running the current through a water rheostat or through 15 ft. of No. 25 gauge German-silver wire. The Boy Mechanic: Volume 1 700 Things for Boys to Do This rheostat is interposed in the general circuit. Scientific American Supplement, No. 598, June 18, 1887 The rheostat for regulating the battery current is the same as that used in the preceding experimental transmitter. The Radio Amateur's Hand Book A galvanoscopic frog giving contractions with one cell through two water rheostats was then placed in circuit. Edison, His Life and Inventions When the welder switch is closed in making a weld, that portion of the rheostat resistance between two arms determining the voltage is short circuited. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon One wire runs to the switch, B, and the other connects with the water rheostat, which is used for reducing the current. The Boy Mechanic: Volume 1 700 Things for Boys to Do The rheostat on the searchlight niver was any good; and she may or may not need a new whistle—I dunno. Cappy Ricks Or, the Subjugation of Matt Peasley Variable resistors are also called resistance boxes and more often rheostats. The Radio Amateur's Hand Book For his quadruplex system, Mr. Edison utilized this fact in the construction of a rheostat or resistance box. Edison, His Life and Inventions 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 If a gradual transformation is desired, a double-pointed rheostat could be used, so that as one light dims the other increases in brilliancy, by the insertion and removal of resistance coils. The Boy Mechanic: Volume 1 700 Things for Boys to Do Quickly Kennedy turned another switch, of a rheostat, which accentuated a whisper to almost a shout. Gold of the Gods The Battery Rheostat.—As with the receptors a rheostat is needed to regulate the current that heats the filament. The Radio Amateur's Hand Book His visit was merely for the purpose of gathering some apparatus, which included a Crookes tube, carefully packed, a rheostat, and some other paraphernalia which we divided. The Treasure-Train The things needed are an arc-lamp, an impedance coil, or small transformer- coil, a rheostat, and a source of energy. The Dream Doctor The motor can be controlled by a small three or four-point battery rheostat. The Boy Mechanic: Volume 1 700 Things for Boys to Do Where two or more oscillator tubes are used only one storage battery is needed, but each filament must have its own rheostat. The Radio Amateur's Hand Book Don't try to operate your spark coil with 110-volt direct lighting current without connecting in a rheostat. The Radio Amateur's Hand Book To do this you need only to use a voltmeter across the filament terminals instead of an ammeter in series with it; then regulate the voltage of the filament with a rheostat. The Radio Amateur's Hand Book By carefully adjusting the rheostat you can easily find the point at which it makes the tube the most sensitive. The Radio Amateur's Hand Book A rheostat is also useful in that it keeps the filament from burning out when the current from the battery first flows through it. The Radio Amateur's Hand Book Set the vacuum tube amplifier back of the rheostat and the A and B batteries back of the parts or in any other place that may be convenient. The Radio Amateur's Hand Book Then place the variable condenser, the rheostat, the crystal detector and the binding posts for the head phones in front of and in a line with each other. The Radio Amateur's Hand Book This done connect the other terminal of the filament to one post of the rheostat and the other post of this to the - or negative side of the A battery. The Radio Amateur's Hand Book The rheostat consists of an insulating and a heat resisting form on which is wound a number of turns of resistance wire. The Radio Amateur's Hand Book Then set the variable condenser in front of it, set the vacuum tube detector at the right hand end of the tuning coil and the rheostat in front of the detector. The Radio Amateur's Hand Book Connect the first post of the variable condenser to the + or positive electrode of the A battery and its - or negative electrode with the rotating contact arm of the rheostat. The Radio Amateur's Hand Book A rheostat of this kind is shown at I and is listed at $1.25. The Radio Amateur's Hand Book The Filament Rheostat.—An adjustable resistance, called a rheostat, must be used in the filament and storage battery circuit so that the current flowing through the filament can be controlled to a nicety. The Radio Amateur's Hand Book A movable contact arm that slides over and presses on the turns of wire is fixed to the knob on top of the rheostat. The Radio Amateur's Hand Book For the two-step amplifier you must, of course, have besides the above parts the amplifier tubes, variable condensers, batteries rheostats, potentiometers and fixed condensers as explained in Chapter IX. The Radio Amateur's Hand Book A rheostat that has a resistance of 6 ohms and a current carrying capacity of 1.5 amperes which can be mounted on a panel board is the right kind to use. The Radio Amateur's Hand Book It is, however, used as well as the rheostat. The Radio Amateur's Hand Book |
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