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The receiver was mounted on the head by a clamp which held it next to the ear. [9] The head mount freed the switchboard operator's hands, so that they could easily connect the wires of the telephone callers and receivers. [10] The head-mounted telephone receiver in the singular form was called a headphone. [11] [12] These head-mounted phone ...
Angle view of the Pioneer SX-1980 stereo receiver. The Pioneer SX-1980[ 1][ 2][ 3] is an AM/FM radio receiver that Pioneer Corporation introduced in 1978, to be matched with the HPM series of speakers. It was rated at 270 watts RMS per channel into 8 ohms, both channels driven. However, in the September 1978 issue of the magazine Audio, [ 4 ...
A handset is a component of a telephone that a user holds to the ear and mouth to receive audio through the receiver and speak to the remote party using the built-in transmitter. In earlier telephones, the transmitter was mounted directly on the telephone itself, which was attached to a wall at a convenient height or placed on a desk or table.
A bone anchored hearing aid (BAHA) is a surgically implanted auditory prosthetic based on bone conduction. It is an option for patients without external ear canals, when conventional hearing aids with a mold in the ear cannot be used. The BAHA uses the skull as a pathway for sound to travel to the inner ear.
Hearing aids provide sound amplification directly into the user's ear, whereas an FM system uses external microphones that broadcast audio signals directly into receivers worn by those with ...
H. H. Scott, Inc. H. H. Scott, Inc. was a major manufacturer of hi-fi equipment in the U.S. It was founded in 1947 by Hermon Hosmer Scott in Cambridge, Massachusetts and moved to the nearby town of Maynard in 1957. [1]
List of communications receivers. This is a list of rack-mount or tabletop communications receivers that include short wave frequencies. This list does not include handheld, portable or consumer grade equipment. Those that include VHF or UHF can be termed wideband receivers, whereas those without HF would be termed scanners, or surveillance ...
AN/VRC-12. The AN/VRC-12 is the lowest-numbered element of a family of vehicular VHF - FM synthesized vehicular radio communications systems developed by Avco Corporation [ 1] and introduced around 1963 and used extensively by the U.S. military during the Vietnam War and for many years after. It replaced the earlier AN/GRC-3 through 8 series ...
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