• Country
• Germany

• Manufacturer / Brand
• HERU - International GmbH , Mülheim/Ruhr

• Year
• 1981 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 157037

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

• Power type and voltage
• Line / Batteries (any type) / AC 220; Batt. 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 cm = 3.1 inch

• Power out
• 0.5 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR412 - HERU - International GmbH ,

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 220 x 180 x 50 mm / 8.7 x 7.1 x 2 inch

• Net weight (2.2 lb = 1 kg)
• 0.8 kg / 1 lb 12.2 oz (1.762 lb)

• Author
• Model page created by Guido Höh. See "Data change" for further contributors.

• Other Models

• Here you find 28 models, 26 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from HERU - International GmbH , Mülheim/Ruhr