General Purpose Amplifier 042.841

Unilab; Blackburn, Lancashire

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  • Year
  • 1956 ??
  • Category
  • Teaching aids-material
  • Radiomuseum.org ID
  • 352823

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 220 Volt
  • Loudspeaker
  • -Loudspeaker incorporated, but system not known.
  • Power out
  • 3.6 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: General Purpose Amplifier 042.841 - Unilab; Blackburn, Lancashire
  • Shape
  • Tablemodel, slant panel.
  • Dimensions (WHD)
  • 230 x 185 x 225 mm / 9.1 x 7.3 x 8.9 inch
  • Notes

  • The Unilab general purpose amplifier 042.841 can, for example, be used together with the Unilab 3cm microwave receiver 045.671 to amplify modulation signals.
    The signal to be amplified is fed to the amplifier via the input jack to the first amplification stage consisting of an EF86 and is then forwarded to the output stage consisting of an EL84. Output signal can be reclaimed via the "Hi" jack for high-impedance speakers and via the "Lo" jack for low-impedance speakers.
    An internal loudspeaker can be switched on using the “S” switch, to which another loudspeaker can be connected in parallel via the “Ls” jack. Volume can be controlled using a potentiometer using the rotary control on the front panel.
    The power supply Voltage is rectified via an EZ80.

  • Mentioned in
  • - - Manufacturers Literature (Unilab Note for use No. 1, 3cm. ELECTROMAGNETIC WAVE APPARATUS)
  • Author
  • Model page created by Konstantin Kalthof. See "Data change" for further contributors.

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