• Country
• Great Britain (UK)

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

• Year
• 1981–1983

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 90086

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

• Number of Transistors
• 14

• Semiconductors
• unknown_tr BF494 BF494 BF495 BF495 BF495 BC548 BC548 BC558 BC558 BC338 BC328 BC635

• Main principle
• Superheterodyne (common); ZF/IF 470/10700 kHz

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Line / Batteries (any type) / 240 / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 0.45 W (unknown quality)

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

• from Radiomuseum.org
• Model: R23 - Roberts Radio Co.Ltd., East

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

• Dimensions (WHD)
• 250 x 150 x 80 mm / 9.8 x 5.9 x 3.1 inch

• Notes

• Two unknown transistors are in the Roberts RR1412/4 FM tuner

• Net weight (2.2 lb = 1 kg)
• 1.5 kg / 3 lb 4.9 oz (3.304 lb)

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

• 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