Mike and Speaker on Phone Make Talk More Convenient (Apr, 1933)

Mike and Speaker on Phone Make Talk More Convenient

THE latest gadget for attachment to your telephone is an amplifier and loudspeaker which permits you to speak and listen without holding the transmitter up to your face.

As shown in the photo at the left, the transmitter-receiver piece is hung on a special device which feeds into an amplifier that boosts both the incoming and out-coming voice. The former issues from a loudspeaker, while the latter is picked up by a super-sensitive microphone.

Dialing is accomplished in the usual manner. The device is the invention of Hans Schmidt, a Berlin Engineer, who labored for five years on the development of his creation.

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