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Caydon 5-Valve Portable

Caydon 5-Valve Portable ; Campbell and Addison (ID = 1055410) Radio
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Caydon 5-Valve Portable ; Campbell and Addison (ID = 1055410) Radio
Campbell and Addison: Caydon 5-Valve Portable [Radio] ID = 1055410 764x828
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For model Caydon 5-Valve Portable, Campbell and Addison; London:
Article in Wireless Word, 1927.
Country:  Great Britain (UK)
Manufacturer / Brand:  Campbell and Addison; London
Year: 1927 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5:
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.
Power out
from Model: Caydon 5-Valve Portable - Campbell and Addison; London
Material Leather / canvas / plastic - over other material
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)

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

All listed radios etc. from Campbell and Addison; London
Here you find 4 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.