Telephone amplifier circuit diagram

The telephone loudspeaker uses the principle of electromagnetic induction to amplify the weak telephone sound, and the sound is loud and clear. The use of the telephone loudspeaker has a particularly obvious effect on improving the quality of long-distance calls and rural calls. Meetings are convenient for phone recording. The microphone is also equipped with a recording jack, which is convenient for the recorder to record phone content.

Telephone amplifier circuit

Telephone amplifier printed board

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