• Country
• New Zealand-Aotearoa

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

• Year
• 1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 370676

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

• Number of Tubes
• 6

• Valves / Tubes
• E442 E415 E415 45 45 80

• Main principle
• TRF with regeneration; Screengrid 1926-1935

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 50 Hz, 230 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Ultimate Screen-Grid All-Electric Console Receiver Screen-Grid Five - Ultimate Brand, Radio Ltd. &

• Shape
• Console, Lowboy (legs < 50 %).

• Notes

• Ultimate Screen-Grid Five All-Electric Console Receiver

  6-valve 4-band receiver with plug-in coils and Magnavox X-Core 12" dynamic power speaker. Separate power supply chassis mounted adjacent to the speaker. The first Ultimate console.  

  Frequency Range

  • Broadcast
  • 45-100 m, 6.6-3 MHz
  • 24-50 m, 12.5-6 MHz
  • 14-28 m, 21-10.7 MHz

• Price in first year of sale
• 55.00 NZ £

• Mentioned in
• -- Original prospect or advert (New Zealand Herald 27 March 1930 Page 5)

• Literature/Schematics (1)
• -- Original prospect or advert (New Zealand Herald 3 July 1930 Page 18)

• Literature/Schematics (2)
• More Golden Age of Radio (Page 129)

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

• Other Models

• Here you find 169 models, 147 with images and 151 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