• Country
• Great Britain (UK)

• Manufacturer / Brand
• Internet Radio (Products) Ltd.; Beckenham, Greater London

• Year
• 1975 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 161523

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

• Number of Transistors
• 13

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz

• Tuned circuits
• 5 AM circuit(s)     7 FM circuit(s)

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

• Power type and voltage
• Dry Batteries / AA: 4 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Power out
• 0.3 W (0.5 W max.)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 2 Band Mark-14 J-80 - Internet Radio Products Ltd.;

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

• Dimensions (WHD)
• 127 x 200 x 66 mm / 5 x 7.9 x 2.6 inch

• Notes

• 2-Band Portable, 4 Dioden; UKW-AFC schaltbar, Kopfhöreranschluß über 3,5 mm Klinkenbuchse.

  UK model has AM IF frequency of 470 kHz.

  Similar to Concertone.

  Made in Hong Kong

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• Author
• Model page created by Museum Roggenhofer. See "Data change" for further contributors.

• Other Models

• Here you find 6 models, 5 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Internet Radio (Products) Ltd.; Beckenham, Greater London