• Country
• Great Britain (UK)

• Manufacturer / Brand
• Sugden, J.E., Heckmondwike, West Yorkshire

• Year
• 1971–1977

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 282667

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

• Number of Transistors
• 30

• Semiconductors
• MC1310

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

• Wave bands
• FM Broadcast Band Only

• Details
• Hi-Fi equipment

• Power type and voltage
• Alternating Current supply (AC) / 117-240 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: FM Stereo Tuner R21 - Sugden, J.E., Heckmondwike,

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 300 x 130 x 230 mm / 11.8 x 5.1 x 9.1 inch

• Notes

• 6 push buttons including four preset tuning positions, AFC and stereo/mono. S-Meter tuning indicator and stereo pilot lamp.

  Outputs: 1 DIN socket, 4 phono sockets (2 for each channel to permit direct connection of auxiliary recorder).

  Frequency range: 88 - 104 MHz
  Frequency response: ± 1 dB, 30 Hz - 15 kHz
  Distortion: less than 0.25% average modulation

  30 transistors.

  Same as the Sugden R51 FM Stereo Tuner which is housed in a metal case.

• Mentioned in
• -- Original-techn. papers.

• Literature/Schematics (1)
• - - Manufacturers Literature (User manual for the Sugden R21 & R51 Stereo VHF FM Tuners)

• Author
• Model page created by Michel Cormier. See "Data change" for further contributors.

• Other Models

• Here you find 12 models, 12 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sugden, J.E., Heckmondwike, West Yorkshire