• Country
• Great Britain (UK)

• Manufacturer / Brand
• Trade Electronic Services (Hira); Manchester

• Year
• 1968 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 348132

• Number of Transistors
• 6

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz

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

• Power type and voltage
• Line / Batteries (any type) / 50 Hz, 240 or C: 4 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm

• Power out
• 0.3 W (undistorted)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Hira MW/LW Portable Radio D-2257 - Trade Electronic Services Hira

• Notes

• Hira Battery-Electric MW/LW Portable Radio

  Made in Hong Kong

• Mentioned in
• - - Manufacturers Literature

• Author
• Model page created by Aldo Andreani. See "Data change" for further contributors.

• Other Models

• Here you find 5 models, 5 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Trade Electronic Services (Hira); Manchester