• Country
• Great Britain (UK)

• Manufacturer / Brand
• Johnson and Phillips Ltd. (J & P); Charlton, London

• Year
• 1910 ??

• Category
• Commercial Transmitter (TX not Transceiver)

• Radiomuseum.org ID
• 311559

• Main principle
• Transmitter

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Batteries / addl. power jack

• Material
• Wooden case

• from Radiomuseum.org
• Model: W/T Transmitter 52b - Johnson and Phillips Ltd. J &

• Dimensions (WHD)
• 240 x 350 x 370 mm / 9.4 x 13.8 x 14.6 inch

• Notes

• Spark transmitter.

  Emetteur à étincelles

• Net weight (2.2 lb = 1 kg)
• 15.6 kg / 34 lb 5.8 oz (34.361 lb)

• Author
• Model page created by Musée des Radios Museum. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 3 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Johnson and Phillips Ltd. (J & P); Charlton, London