• Country
• Great Britain (UK)

• Manufacturer / Brand
• Fidelity Radio Co. Ltd.; London

• Year
• 1973 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 203991

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

• Number of Transistors
• 11

• Semiconductors
• BF195 BF195 BF195 BF194 BF195 BF195 AA119 AA119 AA119 BC159 BC149 AC127 AC128

• Main principle
• Superheterodyne (common); ZF/IF 470 / 10700 kHz; 4 AF stage(s); none

• Tuned circuits
• 5 AM circuit(s)     6 FM circuit(s)

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Batteries / addl. power jack / 9 Volt

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

• Power out
• 0.5 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: RAD23 - Fidelity Radio Co. Ltd.;

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

• Dimensions (WHD)
• 300 x 200 x 80 mm / 11.8 x 7.9 x 3.1 inch

• Notes

• Rear: Earphone/tape out, DC 9V in and Socket for car aerial. Though Silicon transistor -Ve ground, the outer of the external 9V DC jack socket is +Ve 9V PP9 battery last seen in local shops 2010. Still available online 2011. Rear cover held on by side carry handle screws. All "lockfit" Silicon except Audio Out is Germanium AC129 driver and AC127 + AC128 complementary output

  The unlisted transistor is used as a bias diode (D4), for the AC127 & AC128 output stage.

  • LW 1200 - 2000m
  • MW 186 - 550m
  • FM/VHF/UKW 87.5 - 108 MHz

  PP9 battery pack.

  Sockets for car aerial, earphone/external speaker and 9V DC in (outer positive)

• Net weight (2.2 lb = 1 kg)
• 1.880 kg / 4 lb 2.3 oz (4.141 lb)

• Source of data
• Radio And Television Servicing books (R&TVS)

• Circuit diagram reference
• Radio and TV Servicing books (R&TVS) book

• Mentioned in
• R&TVS 1974, page 484

• Author
• Model page created by Michael Watterson. See "Data change" for further contributors.

• Other Models

• Here you find 74 models, 60 with images and 38 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Fidelity Radio Co. Ltd.; London