The Trimline telephone is a variety of telephone set designed by Henry Dreyfuss Associates for the AT&T Bell System.
The idea behind the Trimline telephone was to create an alternative telephone set design that was stylish and easier to use than a traditional telephone. This trimline telephone schematic was accomplished by moving the dial from the telephone's base to the inside of the handset, between the earpiece and mouthpiece. The user could then dial a call without having to return to the base. The same concept is now used trimline telephone by all cellular telephone and cordless telephone models. To miniaturize the rotary dial conair fm2552 caller id trimline telephone enough to fit in the Trimline handset, an unusual moving fingerstop was used. The Trimline was also one of the first phones to use the now ubiquitous RJ11 modular phone plug and jack.
Introduced in 1965, the Trimline included a lighted dial and was encased in a sleek, curved plastic housing. Later versions replaced the dial with a touch-tone keypad. Today, similarly designed models are sold by many companies.
Electronics Topics
The field of electronics is the study and use of systems that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves and semiconductors. The design and construction of electronic circuits to solve practical problems is part of the fields of electronic engineering, and the hardware design side of computer engineering. The study of new semiconductor devices and their technology is sometimes considered as a branch of physics.
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