. Practical wireless telegraphy; a complete text book for students of radio communication . no PRACTICAL WIRELESS TELEGRAPHY. capacity of approximately .002 mfds. and since four are connected in series, theresulting value is .0005 mfds. A very recent type of short wave condenser manufactured by the Marconi Company is shown in Fig. 128. Four copper platedglass jars are mounted on a metal rackand connected together as follows: Con-nection is made from the binding post Eof the left hand inside jar A to the aerialsystem. The outer coating of jar A restson the inside coating of the jar B. Theoutsid
. Practical wireless telegraphy; a complete text book for students of radio communication . no PRACTICAL WIRELESS TELEGRAPHY. capacity of approximately .002 mfds. and since four are connected in series, theresulting value is .0005 mfds. A very recent type of short wave condenser manufactured by the Marconi Company is shown in Fig. 128. Four copper platedglass jars are mounted on a metal rackand connected together as follows: Con-nection is made from the binding post Eof the left hand inside jar A to the aerialsystem. The outer coating of jar A restson the inside coating of the jar B. Theoutside coating of jar B makes contactwith the outside coating of the jar Dthrough the metal rack. The circuit con-tinues on from that point in just the re-verse direction, to that cited in the firstcase, finally ending at the binding post ofjar C. The four jars are thus connectedin series and have combined capacity of. Fig. 127—Drum Type Aerial Tuning Inductance. .0005 mfds. The short wave condenser may be connected in series with either the aerialwires or the earth lead. 106. High Potential Condensers.—The Leyden jar type of condenser hasbeen described in paragraph 84. The assembly of the flat plate condenser isshown in Fig. 129 where three banks of condenser plates are connected in student should note from this diagram how the connecting tabs are broughtout from the sheets of tinfoil and the manner in which the plates are stacked will be seen from the detail that aleft hand tab plate is stacked upagainst a right hand tab plate and soon until the required capacity is ob-tained. When one group is com-plete, the entire unit is bound withcanvas tape and immersed in a tankof oil. The tinfoil is first attached to thecondenser plates by means of a goodgrade of fish glue after which it is al-lowed to dry. The plate is then coatedwith shellac or hot parafBn and after dry-ing again is r
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
