• Country
• Great Britain (UK)

• Manufacturer / Brand
• Murphy Radio Ltd.; Welwyn Garden City

• Year
• 1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 77761

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

• Number of Tubes
• 4

• Valves / Tubes
• MS4B AC/HL AC/Pen 1807

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); Screengrid 1926-1935

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

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

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: All Electric Pedestal A3A - Murphy Radio Ltd.; Welwyn

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 17.5 x 44.5 x 10.5 inch / 445 x 1130 x 267 mm

• Notes

• 3-valve screened grid, AC-powered receiver. Local/distance switch.

  Similar to the A3 Table model but fitted with a gramophone jack, a wider cabinet, and the addition of a detachable pedestal for two guineas extra.

• Price in first year of sale
• 19.95 GB £

• Source of data
• Radio! Radio!

• Mentioned in
• - - Manufacturers Literature

• Literature/Schematics (1)
• -- Schematic

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

• Other Models

• Here you find 366 models, 299 with images and 234 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Murphy Radio Ltd.; Welwyn Garden City