• Country
• Netherlands

• Manufacturer / Brand
• Havened, Radio Techn.(Handels) Bur., Den Haag

• Year
• 1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 69504

• Number of Tubes
• 4

• Valves / Tubes

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries

• from Radiomuseum.org
• Model: Audios O 4 - Havened, Radio Techn.Handels

• Notes
• Information taken from Radio Expres 27/15. Picture Nr.: 163.04

• External source of data
• Radio Amateur Museum / Frans J.J. Driesens + ISBN 90-76014-04-3.

• Source of data
• Opkomst van de Nederlandse Radio-Industrie

• Mentioned in
• Radio-Expres, Netherlands (Nr, 15, 1927)

• Other Models

• Here you find 7 models, 7 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Havened, Radio Techn.(Handels) Bur., Den Haag