• Country
• Great Britain (UK)

• Manufacturer / Brand
• Lotus (Brand), Radio, Garnett Whiteley & Co., Lotus Radio Ltd.; Liverpool

• Year
• 1929/1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 189731

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

• Number of Tubes
• 4

• Valves / Tubes
• S4VB or MS4B 354V or MH4 PM24 or PM24A or PT425 DW2_Mullard

• Main principle
• TRF with regeneration

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

• Power type and voltage
• Alternating Current supply (AC)

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 3 Valve SGP - Lotus Brand, Radio, Garnett

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• This AC mains version of the 3 Valve SGP (Battery) has only two knobs on the front (no rheostat) and uses 4 valves instead of 3 (recitifier valve included).

  The cabinet was available in a choice of oak, walnut or mahogany.

  Note: the article in Wireless World, Sept. 1929, pictures a set with 3 knobs as "Lotus three-valve S.G.P. all-mains receiver" which is most likely the battery version.

  Marconi list the U10 as rectifier, however there is no evidence the U10 existed in 1929 though it's certainly a suitable replacement.

• Price in first year of sale
• 21.00 GBP

• Source of data
• - - Manufacturers Literature

• Mentioned in
• Wireless World (The), London (WW, 79) (Sept. 18th, 1929, p.271 and Sept. 25th, 1929, p.339)

• Author
• Model page created by Roy Johnson. See "Data change" for further contributors.

• Other Models

• Here you find 17 models, 14 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Lotus (Brand), Radio, Garnett Whiteley & Co., Lotus Radio Ltd.; Liverpool