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  2. VHS-C - Wikipedia

    en.wikipedia.org/wiki/VHS-C

    In 1989 JVC increased the run time to 30 minutes by using thinner tape. [3] Later, JVC offered 45-minute and 60-minute cassettes. For comparison, 120-minute 8-mm cassettes became available in the late 1985 and quickly became the norm. Later, 150-minute and 180-minute 8-mm cassettes were offered as well.

  3. Digital Linear Tape - Wikipedia

    en.wikipedia.org/wiki/Digital_Linear_Tape

    This is important for newer tape media, which have very thin, dense data tracks; 256, 384 and 768 data tracks on a 1 ⁄ 2-inch-wide (13 mm) tape are available. DLT7000 and 8000 tilt the head forward and backward to reduce crosstalk between adjacent tracks through azimuth ; this is called Symmetric Phase Recording .

  4. Linear Tape-Open - Wikipedia

    en.wikipedia.org/wiki/Linear_Tape-Open

    Linear Tape-Open (LTO), also known as the LTO Ultrium format, [1] is a magnetic tape data storage technology used for backup, data archiving, and data transfer.It was originally developed in the late 1990s as an open standards alternative to the proprietary magnetic tape formats available at the time.

  5. Tape measure - Wikipedia

    en.wikipedia.org/wiki/Tape_measure

    Millimeters produce whole (integer) numbers, reduce arithmetic errors, thus decreasing wastage due to such errors. The US made measuring tape shown on the right is interesting in that it is a "Reverse Measuring Tape", where the measurements can be read from right to left just as well as they can be read when the tape is used from left to right.

  6. Audio tape specifications - Wikipedia

    en.wikipedia.org/wiki/Audio_tape_specifications

    The first commonly available increase in tape length resulted from a reduction in backing thickness from 1.5 to 1.0 mil (38 to 25 μm) resulting in a total thickness reduction from 42 to 35 μm (1.7 to 1.4 mils), which allowed 3,600 ft (1,100 m), 1,800 ft (550 m), and 900 ft (270 m) tapes to fit on ten-and-a-half-, seven-, and five-inch reels respectively.

  7. DV (video format) - Wikipedia

    en.wikipedia.org/wiki/DV_(video_format)

    Tape is enclosed into videocassette of four different sizes: small, medium, large and extra-large. All DV cassettes use 1 ⁄ 4 inch (6.4 mm) wide tape. DV on magnetic tape uses helical scan, which wraps the tape around a tilted, rotating head drum with video heads mounted to it. As the drum rotates, the heads read the tape diagonally.

  8. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    A reducer reduces the pipe size from a larger to a smaller bore (inner diameter). Alternatively, reducer may refer to any fitting which causes a change in pipe diameter. [15] This change may be intended to meet hydraulic flow requirements of the system or adapt to existing piping of a different size. The reduction length is usually equal to the ...

  9. Eccentric reducer - Wikipedia

    en.wikipedia.org/wiki/Eccentric_reducer

    Eccentric reducers are used at the suction side of pumps to ensure air does not accumulate in the pipe. The gradual accumulation of air in a concentric reducer could result in a large bubble that could eventually cause the pump to stall or cause cavitation when drawn into the pump. Eccentric reducers exhibit a unique design with one side having ...