• Country
• Great Britain (UK)

• Manufacturer / Brand
• Edison-Bell Ltd.; London

• Year
• 1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 70271

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

• Number of Tubes
• 2

• Valves / Tubes
• PM1 PM2

• Main principle
• TRF with regeneration

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 2 & 80 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Gem - Edison-Bell Ltd.; London

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 12.8 x 4.4 x 10.8 inch / 325 x 112 x 274 mm

• Notes

• BBC/EBM stamp. Similar to Bijou which has a cover. Plug-in coils.
  Alternative 4 Volt valves: PM3 PM4; 6 Volt valves: PM5X PM6.
  Adjust -G for minimum plate current where audible distortion does not yet commence.
  1926 according to valve PM2.

  Specification.

  • Highly polished base fitted with an ebonite panel and nickel-plated fittings.
  • Grid bias battery is fitted in the panel.
  • Supplied with coils suitable for 300-500 metres.
  • Coils for higher wavelengths can be supplied at extra cost.
  • Has one detector and one low-frequency stage.
  • Will give good loudspeaker results at 25-30 miles.

  Priced at £3, valves, batteries, and Marconi License extra.

• Price in first year of sale
• 3.00 GB £

• Mentioned in
• Radio! Radio!

• Literature/Schematics (1)
• Wireless World (The), London (WW, 79) (Feb 10, 1926, Page Ad 2.)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 22 models, 14 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Edison-Bell Ltd.; London