• Country
• New Zealand-Aotearoa

• Manufacturer / Brand
• Ultimate (Brand), Radio Ltd. & Radio (1936) Ltd.; Auckland

• Year
• 1951 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 277077

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

• Number of Tubes
• 4

• Valves / Tubes
• ECH21 EF22 EBL21 7Y4

• Main principle
• Superheterodyne (common); ZF/IF 460 kHz; 1 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 5 inch = 12.7 cm

• Power out
• 3 W (unknown quality)

• Material
• Bakelite or Plastics (type unknown)

• from Radiomuseum.org
• Model: Ultimate Minor RBG - Ultimate Brand, Radio Ltd. &

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 300 x 175 x 150 mm / 11.8 x 6.9 x 5.9 inch

• Notes

• Updated chassis for the Ultimate Broadcast Minor chassis model RAC

  Available in ivory and walnut colour.

  Rola 5" PM speaker.

• Mentioned in
• The Golden Age of Radio in the Home 1986 (Advert at the bottom of Page 73)

• Author
• Model page created by Steve Dunford. See "Data change" for further contributors.

• Other Models

• Here you find 153 models, 128 with images and 133 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ultimate (Brand), Radio Ltd. & Radio (1936) Ltd.; Auckland