J2B

Advance Electronics / Components Ltd.; Hainault, Wrexham

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  • Year
  • 1958 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 320306

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125; 210-250 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: J2B - Advance Electronics /
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 11 x 7 x 7.75 inch / 279 x 178 x 197 mm
  • Notes

  • Advance J2B. The Signal Generator has the following valves 1 x Mullard EZ81 Rectifier, 1 x Brimar 6C4 Triode, 1 x Mullard ECC88 Twin Triode, 1 x Mullard EL84 Pentode. The electronics are attached to a steel chassis and all is housed in an aluminium case which has die cast alloy side frames.

    Output Frequency: 15Hz-50kHz in 3 bands
    Band 1: 15-300 Hz
    Band 2: 300-4000 Hz
    Band 3: 4-50 kHz.
    Output impedance: 5 or 600 Ohm.
    Output voltage OC:8.8 Vpp (Measured on DSO)
    Output Voltage @ 5.0 Ohm : 1.58 Vrms, 4.52 Vpp (Measured on DSO)
    Attenuation: 20db @ 600Ohm

  • Net weight (2.2 lb = 1 kg)
  • 1.5 kg / 3 lb 4.9 oz (3.304 lb)

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