• Country
• Netherlands

• Manufacturer / Brand
• Erres, Van der Heem NV; Den Haag

• Year
• 1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 93291

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

• Number of Tubes
• 4

• Valves / Tubes
• AK2 E444 AL2 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 108 kHz; Reflex

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 220 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: KY145 - Erres, Van der Heem NV; Den

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 340 x 450 x 230 mm / 13.4 x 17.7 x 9.1 inch

• Notes

• The E444 has a reflex function: it acts as detector, IF-amplifier and audio amplifier.

• Price in first year of sale
• 119.00 Nfl

• Mentioned in
• Technisch- Commercieel - Radio Vademecum Staleman (Erres Press Release 1935)

• Author
• Model page created by John Koster. See "Data change" for further contributors.

• Other Models

• Here you find 408 models, 325 with images and 221 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Erres, Van der Heem NV; Den Haag