A System of Multiplex Telephony By the Use of Vacuum Tubes
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To quickly assess the difficulty of the text, read a short excerpt:
Evidently then there must have exist- ed a kind of pulling into phase of one circuit by the other, similiar in general to the pulling into phase of two alternators when running in parallel.
The chief criticise of this arrangement lay in the fact that, while the received words were dis- tinct and clear, they were not loud enough. This ir.ay have been due to the use of old and inferior telephone transmitters, or to the VT-I circuit. The receiver used was of the radio high resistance type.
An atte...mpt was now made to devise a circuit similiar to Fig. 17, but using standard coirmion battery desk telephone equipement. It was also desired to increase the loudness of the received message.
The result in this direction is shown in ?ig.
18. The transmitter is of the reCTilar coQimon vt ooc JO S3ym ec c ( ^k\ ) jT ^ M077JA ^ > MS-yO Ati/yJll/9 NOi^MVOO O ^0 35 battery desk stand type, as is also the receiver.
The change nade in the circuit is in connecting the 2nif condenser, formerly in series in the grid cir- cuit of the VT_I , in parallel with the secondary of the receiving induction coil.
What to read after A System of Multiplex Telephony By the Use of Vacuum Tubes?
You can find similar books in the "Read Also" column, or choose other free books by Arnold, E. H to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Evidently then there must have exist- ed a kind of pulling into phase of one circuit by the other, similiar in general to the pulling into phase of two alternators when running in parallel.
The chief criticise of this arrangement lay in the fact that, while the received words were dis- tinct and clear, they were not loud enough. This ir.ay have been due to the use of old and inferior telephone transmitters, or to the VT-I circuit. The receiver used was of the radio high resistance type.
An atte...mpt was now made to devise a circuit similiar to Fig. 17, but using standard coirmion battery desk telephone equipement. It was also desired to increase the loudness of the received message.
The result in this direction is shown in ?ig.
18. The transmitter is of the reCTilar coQimon vt ooc JO S3ym ec c ( ^k\ ) jT ^ M077JA ^ > MS-yO Ati/yJll/9 NOi^MVOO O ^0 35 battery desk stand type, as is also the receiver.
The change nade in the circuit is in connecting the 2nif condenser, formerly in series in the grid cir- cuit of the VT_I , in parallel with the secondary of the receiving induction coil.
What to read after A System of Multiplex Telephony By the Use of Vacuum Tubes?
You can find similar books in the "Read Also" column, or choose other free books by Arnold, E. H to read onlineMoreLess
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