• Country
• Great Britain (UK)

• Manufacturer / Brand
• Rolls-Caydon (Brand), Campbell & Addison Ltd; London

• Year
• 1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 202833

• Number of Tubes
• 5

• Valves / Tubes

• Main principle
• TRF with regeneration

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

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

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

• from Radiomuseum.org
• Model: Caydon 5-Valve Portable - Rolls-Caydon Brand, Campbell &

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

• Dimensions (WHD)
• 15.5 x 12.5 x 8.75 inch / 394 x 318 x 222 mm

• Notes
• Three controls: the first tunes the frame aerial, the second the HF stages and the third affords a-critical control of reaction. Although there are two HF stages, only one is tuned, the other being aperiodic. Both HF stages are untuned when the range switches are set for long waves. The HF stages are followed by a detector and two transformer-coupled LF amplifiers. Celestion loudspeaker. Wave range 200-500 and 1000-2000 metres. Enclosed frame aerial. Leather attaché case.

• Net weight (2.2 lb = 1 kg)
• 12.712 lb (12 lb 11.4 oz) / 5.771 kg

• Price in first year of sale
• 35.00 GBP

• Source of data
• Wireless World (The), London (WW, 79)

• Author
• Model page created by John Koster. See "Data change" for further contributors.

• Other Models

• Here you find 13 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Rolls-Caydon (Brand), Campbell & Addison Ltd; London