Type B Push-Pull Output Transformer Various

Rola Company (AUS) Pty. Ltd.; Melbourne

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  • Year
  • 1946 ??
  • Category
  • Radio part (not a module) 
  • Radiomuseum.org ID
  • 314353

 Technical Specifications

  • Wave bands
  • - without
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Type B Push-Pull Output Transformer Various - Rola Company AUS Pty. Ltd.;
  • Dimensions (WHD)
  • 2 x 2.125 x 2.625 inch / 51 x 54 x 67 mm
  • Notes

  • ROLA TYPE B PUSH-PULL OUTPUT TRANSFORMER CODES

    Non-Isocore transformer designed to operate with Models 12R, 12U, G12 or G12PM loudspeakers which have a voice coil impedance of 8.4 ohms. In the past this transformer has been known as the G12 type. For 6AQ5, 6BW6 & KT61 see type BOL109. For KT66 & 807 see type BPL126.

    Valve/Tube

    Type

    Operating

    Conditions

    Plate

    Voltage

    Nominal

    Load

    Transformer

    Type
    2A3 Class A1 self bias 250 5,000ct BTL50
    2A3 Class AB1 self bias 300 5,000ct BTL50
    2A3 Class AB1 Fixed bias 300 3,000ct BTL65
    2A5 Class A1 Pentode self bias 250 14,000ct BNL114
    2A5 Class AB2 Pentode fixed bias 375 10,000ct BOL109
    6F6, G/GT Class A1 Pentode self bias 250 14,000ct BNL114
    6F6, G/GT Class AB2 Pentode fixed bias 375 10,000ct BOL109
    6L6, G/GT Class A1 Pentode fixed bias 250 5,000ct BPL126
    6L6, G/GT Class A1 Pentode fixed bias 270 5,000ct BPL126
    6L6, G/GT Class A1 self bias 270 5,000ct BPL126
    6V6, G/GT Class AB1 Pentode 250 10,000ct BOL109
    6V6, G/GT Class AB1 Pentode 285 8,000ct BOL124
    42 Class A1 Pentode self bias 250 14,000ct BNL114
    42 Class AB2 Pentode fixed bias 375 10,000ct BOL109
    45 Class A1 275 9,200ct BSL46
    45 Class AB2 275 3,200ct BSL79
    47 Class A1 Pentode self bias 250 14,000ct BNL114
    AL3 Class A Pentode 250 14,000ct BOL90
    CL4 Class AB self bias Pentode 250 4,000ct BRL73
    EL2 Class AB self bias Pentode 250 8,000ct BQL77
    EL2 Class AB fixed bias Pentode 250 8,000ct BQL77
    EL3, NG Class A Pentode 250 14,000ct BOL90
    KL4 Class B Pentode 135 35,000ct BNL69

     

  • Literature/Schematics (1)
  • - - Manufacturers Literature (Rola Loudspeaker Data. (Date unknown))
  • Author
  • Model page created by Martin Kent. See "Data change" for further contributors.

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