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  2. Gas metal arc welding - Wikipedia

    en.wikipedia.org/wiki/Gas_metal_arc_welding

    Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) and metal active gas (MAG) is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to fuse (melt and join).

  3. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]

  4. RP-23 Sapfir - Wikipedia

    en.wikipedia.org/wiki/RP-23_Sapfir

    The initial production version, the Sapfir-23L (L - Lyogkiy or lightweight) pulse radar was first carried on the MiG-23 Edition 1971. Using a twist-Cassegrain antenna 800 mm (31 in) in diameter, it used a continuous-wave target illuminator channel to provide guidance for the semi-active radar homing (SARH) R-23R missile. However, as an interim ...

  5. Welding power supply - Wikipedia

    en.wikipedia.org/wiki/Welding_power_supply

    A welding power supply is a device that provides or modulates an electric current to perform arc welding. [1] There are multiple arc welding processes ranging from Shielded Metal Arc Welding (SMAW) to inert shielding gas like Gas metal arc welding (GMAW) or Gas tungsten arc welding (GTAW).

  6. Folded unipole antenna - Wikipedia

    en.wikipedia.org/wiki/Folded_unipole_antenna

    The folded unipole antenna is a type of monopole mast radiator antenna used as a transmitting antenna mainly in the medium wave band for AM radio broadcasting stations. It consists of a vertical metal rod or mast mounted over and connected at its base to a grounding system consisting of buried wires.

  7. Electrogas welding - Wikipedia

    en.wikipedia.org/wiki/Electrogas_welding

    Electrogas welding (EGW) is a continuous vertical-position arc welding process developed in 1961 in which an arc is struck between a consumable electrode and the workpiece. A shielding gas is sometimes used, but pressure is not applied.

  8. T-54/T-55 operators and variants - Wikipedia

    en.wikipedia.org/wiki/T-54/T-55_operators_and...

    It has a post mount forward of commanders cupola for 50cal HMG. [42] VT-55KS captured from Egyptians or Syrians and modified to meet the needs of Israeli Army. [42] MT-55 captured from Egyptians or Syrians and modified to meet the needs of Israeli Army. It is fitted with an extended antenna. [118] T-54 converted into an improvised APC. Rebuilt ...

  9. Discone antenna - Wikipedia

    en.wikipedia.org/wiki/Discone_antenna

    The discone antenna has a useful frequency range of at least 10 to 1. [2] [3] When employed as a transmitting antenna, a properly constructed discone is just as efficient as an antenna designed for a more limited frequency range. The extra bandwidth comes from the controlled taper and large termination radius of the cone.

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