• Country
• New Zealand-Aotearoa

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

• Year
• 1946 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 339454

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

• Number of Tubes
• 4

• Valves / Tubes
• 6K8G 6S7G 6T7G or 6Q7 6G6G

• Number of Transistors

• Semiconductors
• Vibrator

• 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
• Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt

• Loudspeaker
• Ø 8 inch = 20.3 cm

• Material
• Wooden case

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

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 460 x 310 x 220 mm / 18.1 x 12.2 x 8.7 inch

• Notes

• 4-Valve broadcast (MW) superhet receiver with vibrator.

  Similar to wooden cabinet Ultimate Model RB but for 6 volt operation. 

  Most sets found today probably have a mains power supply retrofitted, in a similar manner to the photographed model.

  Manufactured by Radio (1936) Ltd.

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

• Other Models

• Here you find 144 models, 120 with images and 127 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