• Country
• Great Britain (UK)

• Manufacturer / Brand
• HMV (Brand), His Masters Voice, The Gramophone Company Ltd.; Middlesex

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 195759

• Number of Tubes
• 5

• Valves / Tubes
• MS4 MS4 MHL4 PT625 U10

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

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

• Details
• Changer (Record changer)

• Power type and voltage
• Alternating Current supply (AC) / 100-250 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 522 [AC] - HMV Brand, His Masters Voice,

• Notes
• See also HMV 522 DC mains autoradiogram.

• Literature/Schematics (1)
• Radio Marketing Service Engineer

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 421 models, 330 with images and 242 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from HMV (Brand), His Masters Voice, The Gramophone Company Ltd.; Middlesex