• Country
• Spain

• Manufacturer / Brand
• Inter Electrónica, S.A., Inter-Grundig, S.A.; Barcelona

• Year
• 1967 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 129831

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

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

• Power type and voltage
• Dry Batteries

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: E-156 TRP-428 - Inter Electrónica, S.A., Inter

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

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

• Author
• Model page created by Diego Fernandez-Fernandez. See "Data change" for further contributors.

• Other Models

• Here you find 337 models, 183 with images and 191 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Inter Electrónica, S.A., Inter-Grundig, S.A.; Barcelona