Introduction
First introduced in 1965, the Trimline included a lighted dial and was encased in a sleek, curved plastic housing that took up little space compared to earlier U.S. models. Unfortunately, the glass-smooth and shallowly-curved plastic handset proved difficult to retain between cheek and shoulder for hands-free communication without slipping, and this problem was never corrected over the life of the phone. The first Trimline models used incandescent dial lights powered by a power transformer plugged into a standard 120VAC outlet. The bulky transformer and the need for a conveniently-placed 120-volt outlet was criticized by many consumers, and Western Electric subsequently redesigned the Trimline to use a green LED backlit dial powered by current from the phone line. Always eager to re-use its older stocks of turned-in phones, AT&T later repainted and resold early-model pre-divestiture Trimlines without a transformer as 'non-lighted' models.
Read more about this topic: Trimline Telephone
Famous quotes containing the word introduction:
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—Henry David Thoreau (1817–1862)