. Practical wireless telegraphy; a complete text book for students of radio communication . of the repeating transformermust be carefully adjusted, as well as thecoupling between the primary and secon-dary windings. Correct values of induc-tance and capacity must be selected in eachof the three circuits for any particularwave length. Beyond the tuning of thethird circuit, the general mode of opera-tion is practically the same as with the ,,■„ ,„,, „.„ , T, ^- ^- •.. ordinary radio-frequency tuners. big. 184—Simple Regenerative Circuit. t. i . i ^ . ■ , . , It should not require explanation tha


. Practical wireless telegraphy; a complete text book for students of radio communication . of the repeating transformermust be carefully adjusted, as well as thecoupling between the primary and secon-dary windings. Correct values of induc-tance and capacity must be selected in eachof the three circuits for any particularwave length. Beyond the tuning of thethird circuit, the general mode of opera-tion is practically the same as with the ,,■„ ,„,, „.„ , T, ^- ^- •.. ordinary radio-frequency tuners. big. 184—Simple Regenerative Circuit. t. i . i ^ . ■ , . , It should not require explanation thatwith the amplification of signals obtained by the circuits shown in Figs. 179 to 183 the usefulrange of transmitting apparatus has been considerably increased. Another circuit for the ampUHcation of incoming radio signals is shown in the 184, wherein the principal point to be observed is the connection of the secondaryterminals of the receiving tuner to the vacuum valve. One terminal is connected through the grid condenser to the grid and the opposite ter-. es ^ VALVE 1 WLVEZ VALVE 5


Size: 1943px × 1286px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917