• Year
  • 1939 ??
  • Category
  • Radio part (not a module) 
  • Radiomuseum.org ID
  • 356313

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: 7-Pole Male Plug 10H/258B - MILITARY U.K. different makers
  • Shape
  • Miscellaneous shapes - described under notes.
  • Dimensions (WHD)
  • 40 x 42 x 41 mm / 1.6 x 1.7 x 1.6 inch
  • Notes
  • The 7-Pole Male Plug (UK Air Ministry Stores Ref. 10H/258B) has a central locating key and right-angle cable entry. It was produced by several manufacturers and used for commercial applications as well as for UK and US military equipment. Other designations include:

    Plug Type 174
    US Signal Core No. PL-182
    US Navy No. NAF-68925-2
    Belling & Lee Type L530
    Philco No. 358-1250
    Ucinite No. 118109

    Designations for the corresponding fixed female socket include:
    10H/255
    Belling & Lee Type L726 or L531
    US 278757.5

    Insulation resistance > 104 Megohms
    Current rating 5 A per pole
    Max contact resistance 1 milliohm
    Breakdown voltage 74 kV DC
    Insertion/withdrawal force 0.45 kg per pole
    Max cable diameter 12.7 mm (0.5 in)
    Temperature range -40˚C to +85˚C
    Contacts silver-plated; solder spills tinned

  • Net weight (2.2 lb = 1 kg)
  • 0.038 kg / 0 lb 1.3 oz (0.084 lb)
  • Mentioned in
  • - - Manufacturers Literature (Signal Corps Plugs and Sockets, Philco Service Cable Fabrication, Belling-Lee Components catalogue.)
  • Author
  • Model page created by Bruce Taylor. See "Data change" for further contributors.

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The model 7-Pole Male Plug is part of the collections of the following members.

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