What is the function of the induction coil in the telephone circuit?

Show diagram of the Stromberg-Carlson magneto desk telephone circuit and describe its working.

But they had help on their telephone circuit this time.

He further found that these currents could be detected by grounding the terminals of a telephone circuit.

As is well known, it is electric currents and not sound-waves that are transmitted over a telephone circuit.

Any loose, crazy unstable structure, of conducting bodies, inserted in a telephone circuit, will act as a microphone.

The time constant of a telephone circuit should therefore not be less than 0.0003 second.

He demonstrated that in every telephone circuit there is a particular point at which, if a telephone is inserted, no cross-talk can be heard.

It is a little electro-magnetic cut-out that breaks the telephone circuit whenever a current passes into the circuit equal to or more than an ampere.

This proved just what was needed for the telephone circuits.

The details of the common-battery telephone circuits of the Dean Electric Company are shown in Fig.

The new system replaces with cables the old radio- telephone circuits that have been in use betw.

He said 70 percent of the total line capacity, equivalent to 120,000 ordinary telephone circuits, is already leased.

The use of the so-called direct-current receiver has brought about a great simplification in the common-battery telephone circuits of several of the manufacturing companies.

"The device that connects our telephone circuits."

To the same year, 1879, belong his laborious investigations on current induction, and some ingenious plans for eliminating its effects on telegraph and telephone circuits.