• Country
• Great Britain (UK)

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

• Year
• 1934

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 109606

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

• Number of Tubes
• 4

• Valves / Tubes
• DSB VDS DH DPT

• Main principle
• Superheterodyne (common); ZF/IF 125.5 kHz; 2 AF stage(s); Screengrid 1926-1935

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Direct Current supply (DC) / 200-250 Volt

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

• Power out
• 1.25 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Superhet Selective DC Four 404 - HMV Brand, His Masters Voice,

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

• Dimensions (WHD)
• 15.2 x 17.5 x 10.8 inch / 386 x 445 x 274 mm

• Notes
• An adaptor was available to permit operation from a.c. mains; priced at 1.50 GBP in 1934

• Net weight (2.2 lb = 1 kg)
• 16.8 kg / 37 lb 0.1 oz (37.004 lb)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Roy Johnson. 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