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In telecommunications, an acoustic coupler is an interface device for coupling electrical signals by acoustical means—usually into and out of a telephone. The link is achieved through converting electric signals from the phone line to sound and reconverting sound to electric signals needed for the end terminal, such as a teletypewriter, and ...
The Silent 700, introduced in 1971, [1] was a line of portable computer terminals manufactured by Texas Instruments in the 1970s and 1980s. Silent 700s printed with a 5 × 7 [ 2 ] dot-matrix heating element onto a roll of heat-sensitive paper .
Tuning an instrument nowadays usually starts with setting an A; historically it would commence from a C or an F. The harpsichord uses the bass clef (F clef). Some modern instruments are built with keyboards that can shift sideways, allowing the player to align the mechanism with strings at either A = 415 Hz or A = 440 Hz.
A thermocouple, also known as a "thermoelectrical thermometer", is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction.A thermocouple produces a temperature-dependent voltage as a result of the Seebeck effect, and this voltage can be interpreted to measure temperature.
A gimmick loop is a simple type of capacitive coupler: two closely spaced strands of wire. It provides capacitive coupling of a few picofarads between two nodes. Usually the wires are twisted together. [4] [5]
There are four surviving harpsichords bearing the name of Gräbner, as well as a handful of clavichords. The harpsichords are all double manual instruments, 2x8' , 1x4', shove coupler and buff stop. All have a mitred tail, as opposed to a rounded one favoured by builders in Berlin and Hamburg. They all have an unusual non-pythagorean scale that ...
In addition, the unison off couplers can be used with other couplers to change the order of the manuals at the console: engaging the Great to Choir and Choir to Great couplers along with the Great unison off and Choir unison off couplers would have the effect of moving the Great to the bottom manual and the Choir to the middle manual.
Coupler (piping), also called a (joist) short length of pipe with two female threads; Coupler, a device used on a pipe organ or harpsichord to allow a player to play multiple divisions at once, by means of "coupling" a division to another at either sub, super, or octave pitches; Coupler, a tap valve, for controlling the release of beer out of a keg