• Country
• New Zealand-Aotearoa

• Manufacturer / Brand
• Rolls (brand), Stevens and Sons Limited; Christchurch

• Year
• 1945

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 347196

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

• Number of Tubes
• 5

• Valves / Tubes
• 6K8G 6U7G 6Q7G 6V6GT 6X5GT

• Main principle
• Superheterodyne (common); ZF/IF 460 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 230 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 inch = 16.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Rolls RB [Wooden Cabinet] - Rolls brand, Stevens and Sons

• Shape
• Tablemodel, with any shape - general.

• Notes

• 5-Valve superhet broadcast (MW) wooden cabinet mantel model receiver. Also available in a pressed metal cabinet.

  Very early models used a Rola electromagnetic (EM) speaker, although this was quickly updated to a separate choke in the power supply and a newer Rola permanent magnet speaker with a diamond-shaped magnet.  Later models had the more traditional Rola PM speaker with the round magnet.

  Manufactured by Radio (1936) Ltd for Stevens & Sons Ltd.

  See also Golden Knight RB, Skyscraper RB, Courier RB, Ultimate RB, Lewis Eady RB & Madison RB.

• Mentioned in
• More Golden Age of Radio (Page 133 (Metal cabinet))

• Author
• Model page created by Brian Stevens. See "Data change" for further contributors.

• Other Models

• Here you find 21 models, 17 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Rolls (brand), Stevens and Sons Limited; Christchurch