• Country
• Netherlands

• Manufacturer / Brand
• Heem & Bloemsma, van der, Den Haag

• Year
• 1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 69513

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

• Number of Tubes
• 4

• Valves / Tubes
• A430 A415 A415 B403

• Main principle
• TRF with regeneration

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

• Power type and voltage
• Storage and/or dry batteries / 4/120 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: IV [late] - Heem & Bloemsma, van der, Den

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 580 x 320 x 320 mm / 22.8 x 12.6 x 12.6 inch

• Notes
• Information taken from Maker information. Picture Nr.: 141.02 The cabinet was made by H.P. Mutters & Zn, The Hague. A very distinguished firm that also made the the first class interior of the Titanic. The cabinet was made in the Art Deco style of the "Haagse School".

• Net weight (2.2 lb = 1 kg)
• 10.5 kg / 23 lb 2 oz (23.128 lb)

• 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

• Other Models

• Here you find 15 models, 13 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Heem & Bloemsma, van der, Den Haag