Nine Valve Superheterodyne

Pegasus (Brand), Franklyn A. G. & Pegasus Ltd.; Leeds

Data
Forum
Pictures
Collections

  • Year
  • 1927
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 351828

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 9
  • Valves / Tubes
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries / HT 160, GB 18, LT 2 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Nine Valve Superheterodyne - Pegasus Brand, Franklyn A. G.
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 16.75 x 19.5 x 7 inch / 425 x 495 x 178 mm
  • Notes

  • A superheterodyne circuit is employed, incorporating four intermediate high-frequency amplifying stages and three resistance-coupled amplifiers following the second detector valve so there are nine valves in all.

    The total filament current is about 1 ampere and is supplied from a 2 volt 20 ampere-hour accumulator. The H.T. battery potential is 160 volts, and the maximum grid biasing potential is 18 volts.

     A push-pull switch is used to change over from broadcast to long waves. The loudspeaker is contained within the cabinet. 

  • Price in first year of sale
  • 63.00 GBP
  • Author
  • Model page created by Clive Forder. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum