P4D later

• Country
• Great Britain (UK)

• Manufacturer / Brand
• Roberts Radio Co.Ltd., East Molesey, Surrey, UK

• Year
• 1946–1951

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 90668

• Picture
• Schematics

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

• Number of Tubes
• 4

• Valves / Tubes
• DK32 DF33 DAC32 DL35

• Main principle
• Superheterodyne (common); ZF/IF 467 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Dry Batteries / 90 / 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: P4D [later] - Roberts Radio Co.Ltd., East

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 310 x 300 x 205 mm / 12.2 x 11.8 x 8.1 inch

• Notes

• Released April 1946 at £14 14s 0d + £3 3s 3d purchase tax. Built in frame aerial

  Uses Ever Ready AD3 or equivalent combo HT & LT pack. About 240 hours or more.

  Turntable base.

  Separate LW & MW internal loop (frame) aerials and rear panel sockets for Short Wave.

  The battery pack adds about 2.7kg more to the 5kg empty weight.

  See also the variant earlier and notes therein reported.

• Net weight (2.2 lb = 1 kg)
• 5 kg / 11 lb 0.2 oz (11.013 lb)

• Price in first year of sale
• 18.00 GBP

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (824 (6th Sept 1946))

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 100 models, 96 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Roberts Radio Co.Ltd., East Molesey, Surrey, UK