• Country
• Great Britain (UK)

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

• Year
• 1967–1970

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 89977

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

• Number of Transistors
• 8

• Semiconductors
• AF115 AF117 AF117 BC149 AC127 AC127 AC128 AC128

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Dry Batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 7 inch = 17.8 cm

• Power out
• 0.65 W (unknown quality)

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

• from Radiomuseum.org
• Model: R303 - Roberts Radio Co.Ltd., East

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

• Dimensions (WHD)
• 260 x 150 x 80 mm / 10.2 x 5.9 x 3.1 inch

• Notes
• The 3 x AF11x transistors are in the Mullard LP1159/1 IF module. Only one of these transistors is shown on the schematic. Speaker 7 x 3.5 inch. Price 15gns.

• Net weight (2.2 lb = 1 kg)
• 1.4 kg / 3 lb 1.3 oz (3.084 lb)

• Price in first year of sale
• 15.75 £

• Source of data
• -- Original-techn. papers.

• Circuit diagram reference
• Radio and TV Servicing books (R&TVS) book

• Literature/Schematics (1)
• -- Original-techn. papers. (ERT Chart 1637)

• Literature/Schematics (2)
• Trader Sheet 1824

• 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