• Country
• Sweden

• Manufacturer / Brand
• Centrum-Radio, Gylling & Co.; Stockholm

• Year
• 1937 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 238564

• • Brand: Gylling

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

• Number of Tubes
• 4

• Valves / Tubes
• 6A7 6D6 6B5 80

• Main principle
• Superhet, IF regeneration; ZF/IF 480 kHz; 2 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 100; 110; 120; 130; 140; 150; 210; 220; 230; 240; 250 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: HW4 Typ 39 - Centrum-Radio, Gylling & Co.;

• Shape
• Tablemodel, low profile (big size).

• Notes

• Centrum Radio model HW4 is an AC operated 4-tube 3-band superheterodyne receiver.

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

• Author
• Model page created by Aglef Tröger. See "Data change" for further contributors.

• Other Models

• Here you find 194 models, 145 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Centrum-Radio, Gylling & Co.; Stockholm