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  2. 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.

  3. Compact Cassette tape types and formulations - Wikipedia

    en.wikipedia.org/wiki/Compact_Cassette_tape...

    Remanence of audio tapes, referred to quarter-inch tape width, varies from around 1100 G for basic ferric tapes to 3500 G for Type IV tapes; [5] advertised remanence of the 1986 JVC Type IV cassette reached 4800 G. [6] Coercivity is a measure of the external magnetic flux required to magnetize the tape, and an indicator of the necessary bias level.

  4. Reel-to-reel audio tape recording - Wikipedia

    en.wikipedia.org/wiki/Reel-to-reel_audio_tape...

    A reel-to-reel tape recorder (Sony TC-630), typical of a 1970s audiophile device. Reel-to-reel audio tape recording, also called open-reel recording, is magnetic tape audio recording in which the recording tape is spooled between reels. To prepare for use, the supply reel (or feed reel) containing the tape is placed on a spindle or hub.

  5. Cassette tape - Wikipedia

    en.wikipedia.org/wiki/Cassette_tape

    The Compact Cassette, also commonly called a cassette tape, [2] audio cassette, or simply tape or cassette, is an analog magnetic tape recording format for audio recording and playback. Invented by Lou Ottens and his team at the Dutch company Philips , the Compact Cassette was released in August 1963.

  6. List of cassette tape and cartridge tape formats - Wikipedia

    en.wikipedia.org/wiki/List_of_cassette_tape_and...

    Cassette tape, a two-spool tape cassette format for analog audio recording and playback and introduced in 1963 by Philips; DC-International, a format that was created by Grundig after Phillips had abandoned an earlier format that was being created alongside the Compact Cassette; 8-track tape, continuous loop tape system introduced in 1964

  7. Tape measure - Wikipedia

    en.wikipedia.org/wiki/Tape_measure

    Tape measures are often designed for specific uses or trades. Tapes may have different scales, be made of different materials, and be of different lengths depending on the intended use. Tape measures used in tailoring are called "sewing tape". Originally made from flexible cloth or plastic, fiberglass is now the preferred material due to its ...

  8. Birmingham gauge - Wikipedia

    en.wikipedia.org/wiki/Birmingham_gauge

    The Birmingham gauge is also known as the Stubs Iron Wire Gauge or Birmingham Wire Gauge and is distinct from the Stubs Steel Wire Gauge and the British Standard Wire Gauge. It is commonly referred to simply as gauge (abbreviated as G ), [ 3 ] but this should not be confused with the French gauge , a separate system used for measuring the outer ...

  9. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 61118 Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape – Type M2; IEC 61119 Digital audio tape cassette system (DAT) IEC 61120 Digital audio tape recorder reel to reel system, using 6,3 mm magnetic tape, for professional use; IEC 61121 Tumble dryers for household use – Methods for measuring the performance