• Country
• Great Britain (UK)

• Manufacturer / Brand
• His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB

• Year
• 1934/1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 17866

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

• Number of Tubes
• 5

• Valves / Tubes
• MX40 VMS4B MHD4 PX4 U12

• Main principle
• Superheterodyne (common); ZF/IF 125 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

• Details
• Changer (Record changer)

• Power type and voltage
• Alternating Current supply (AC) / 200; 230; 250 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 570 - His Master's Voice Masters,

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

• Notes
• The Marconi-HMV model 570 is the radiogram version of model 442. The schematic is for models 289, 298, 442 and 570.

• External source of data
• E. Erb 3-907007-36-0

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Literature/Schematics (4)
• Trader sheet 521

• Other Models

• Here you find 414 models, 323 with images and 242 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB