In a headset chest set, which part acts as the receiver for a sound powered telephone?

In a headset chest set, the component that acts as the receiver for a sound-powered telephone is the receiver/headset. This part is responsible for converting electrical signals into audible sound, allowing the user to hear incoming communications clearly. The receiver/headset is specifically designed to fit comfortably over or in the ears, facilitating effective communication even in noisy environments.

The other components play distinct roles. The transmitter is designed for sending sound or voice signals, not receiving them. The speaker typically refers to a standalone device or component that projects sound but is not directly integrated into a headset. The mouthpiece is involved in capturing the user's voice for transmission rather than receiving sound, making it an essential part of the communication process but not the receiver itself.