• Year
  • 1958 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 148682

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

 Technical Specifications

  • Number of Transistors
  • 4
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz; 3 AF stage(s); Reflex
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Dry Batteries / 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • from Radiomuseum.org
  • Model: PR4 - Perdio Electronics Ltd. /
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 5.75 x 3.25 x 1.25 inch / 146 x 83 x 32 mm
  • Notes
  • Miniature "personal" receiver. 4 transistors & one diode. IF amplifier is also AF amplifier (Reflex).
  • Net weight (2.2 lb = 1 kg)
  • 0.4 kg / 0 lb 14.1 oz (0.881 lb)
  • Source of data
  • -- Schematic
  • Circuit diagram reference
  • Radio and TV Servicing books (R&TVS) book
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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