• Country
• Great Britain (UK)

• Manufacturer / Brand
• Eddystone (Brand), Stratton and Co., Ltd., Eddystone Radio Ltd.; Birmingham

• Year
• 1942–1945

• Category
• Commercial Transmitter (TX not Transceiver)

• Radiomuseum.org ID
• 112936

• Number of Tubes
• 6

• Valves / Tubes
• ARP37 CV18 CV18 CV18 ECC31 ECC31

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage and/or dry batteries / 12 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Wireless Sender No. 57 440 - Eddystone Brand, Stratton and

• Shape
• Tablemodel, with any shape - general.

• Notes
• VHF transmitter, used in VHF duplex communications systems. Single crystal controlled channel within 50 - 100 MHz range. Output 7 - 10 Watts.
  Variants: without suffix letter: 50 - 100 MHZ range
  440B: range 85 - 95 MHz
  440C: range 65 - 85 MHZ
  RAF variant / no suffix letter: - 120 MHz
  This set has been used as transmitter of Royal Army Wireless Station No. 57. Modified sets often used by ham for VHF 6m - communications in post-war years.

• Mentioned in
• Eddystone User Group: Quick Reference Guide

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 255 models, 125 with images and 46 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Eddystone (Brand), Stratton and Co., Ltd., Eddystone Radio Ltd.; Birmingham