• Country
• Great Britain (UK)

• Manufacturer / Brand
• Ediswan, Edison Swan Electric Co.; London

• Year
• 1925 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 203971

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

• Number of Tubes
• 4

• Valves / Tubes

• Main principle
• TRF with regeneration

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 6 & 4.5 or 9 & 9 & 2 x 60 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Ediswan 4-valve, long range Radiophone - Ediswan, Edison Swan Electric

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 570 x 360 x 280 mm / 22.4 x 14.2 x 11 inch

• Notes

• Reflex receiver. Grid-leak detector, transformer-coupled LF valve, resistance-capacity-coupled LF valve. Wave range 200-4000 metres. Walnut cabinet, totally enclosed.

  Five bands using plug in coil modules.

  1. 190 to 230m (MW)
  2. 260 to 540m (MW)
  3. 500 to 1000m (LW)
  4. 900 to 2200 (LW)
  5. 1800 to 4000 (VLF)

  Valves suggested are: P.V.5, A.R., A.R., P.V.5

  LT: 6V (3 cell) Lead Acid Accumulator using rheostats for 5V filaments.

  Grid Bias (x2) and HT (x2) dry cell "tapped" packs.

• Price in first year of sale
• 27.00 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 21 models, 16 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ediswan, Edison Swan Electric Co.; London