• Country
• Germany

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

• Year
• 1978 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 157006

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Radio with other functions

• Power type and voltage
• Dry Batteries / 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 cm = 2.2 inch

• Power out
• 0.25 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 2 Band Radio Flashlight LR 21 - HERU - International GmbH ,

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 158 x 82 x 35 mm / 6.2 x 3.2 x 1.4 inch

• Notes
• Das Radio hat an der Seite eine Taschenlampe.

• Net weight (2.2 lb = 1 kg)
• 0.250 kg / 0 lb 8.8 oz (0.551 lb)

• Source of data
• - - Data from my own collection

• 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