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According to the team that created the device, the vibrations from the heart muscles would be enough to allow the generator to power a pacemaker. [2] This would eliminate the need to replace the batteries surgically. In 2012 a group at Northwestern University developed a vibration-powered generator out of polymer in the form of a spring.
Measurements of a typical Tune-o-matic bridge Schaller Wide Travel Tune-o-Matic a.k.a. Harmonica bridge on The Fool. Since its invention, different versions by Gibson have been used: • ABR-1 without retainer wire: 1954–1962 • ABR-1 with retainer wire: 1962–1975 • Schaller Wide travel Tune-o-Matic a.k.a. "Harmonica bridge": 1970-1980 (Kalamazoo plant) • Modern TOM a.k.a. "Nashville ...
Droop speed control is a control mode used for AC electrical power generators, whereby the power output of a generator reduces as the line frequency increases. It is commonly used as the speed control mode of the governor of a prime mover driving a synchronous generator connected to an electrical grid. It works by controlling the rate of power ...
The stoptail bridge consists of two parts: an adjustable fixed bridge piece, such as a Tune-o-matic and a separate stopbar (or stop bar) tailpiece.. A stopbar tailpiece is, as the name implies, a bar-shaped formed metal piece commonly made of pot metal or zinc alloys although aluminum and brass may be used.
The Hagström Viking was the first semi-acoustic guitar built by the Hagström company. It was launched in 1965 alongside Hagström's new 12-string guitar and two bass guitars. Two years later there was a twelve-string model launched simple called the Viking 12 and the Viking II Deluxe which featured gold plated machine heads and adjustable ...
An electrical grid may have many types of generators and loads; generators must be controlled to maintain stable operation of the system. In an electric power system, automatic generation control (AGC) is a system for adjusting the power output of multiple generators at different power plants, in response to changes in the load.
The rosewood fingerboard had trapezoid inlays, and the guitar had an adjustable bridge. For amplification, a single-coil pickup (an uncovered P-90 pickup) [ 1 ] was installed under the top of the body with the pole screws protruding through the top at the end of the fingerboard, with a volume and a tone knob.
In 1962 the adjustable bridge was introduced. In 1967 the tuner knobs were changed to metal. In 1970, the model was discontinued as a result of the acquisition of the Gibson company by Norlin, but in 1972, the Japanese-made FT-145 (Natural) and FT-145SB (Sunburst) was introduced and ended in 1980.