• Country
• Great Britain (UK)

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

• Year
• 1965–1972

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 113234

• Number of Tubes
• 10

• Valves / Tubes
• 6BA6 6AJ8 6BA6 6BA6 6AL5 6AU6 6AT6 6AM5 6BE6 5Z4G 0D3

• Main principle
• Superhet with RF-stage; ZF/IF 720 kHz

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110, 200, 230 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 1 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: LF Communication Receiver 850/4 - Eddystone Brand, Stratton and

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 430 x 222 x 381 mm / 16.9 x 8.7 x 15 inch

• Notes
• VLF communications receiver covering 10 - 600 kHz in 6 bands (10-20, 19-40, 40-85, 80-160, 150-310, 300 - 600 kHz), AM, CW (BFO).
  S-meter, CW audio filter, bandwidth 0,4 / 1,5 / 6 kHz; 8 crystal controlled presets.
  Used for maritime and submarine communications surveillance, 200 sets produced.

• Net weight (2.2 lb = 1 kg)
• 22.6 kg / 49 lb 12.5 oz (49.78 lb)

• Price in first year of sale
• 312.00 GBP

• 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 253 models, 123 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