• 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
• 350796

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

• Number of Tubes
• 7

• Valves / Tubes
• 7B7 7S7 6AR7GT 6SQ7 6U5 KT61 7Y4

• Main principle
• Superhet with RF-stage; ZF/IF 460 kHz; 3 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Ultimate Drummond RBH [Console] - Ultimate Brand, Radio Ltd. &

• Shape
• Console with any shape - in general

• Notes

• Ultimate RBH Drummond. 7-valve (including magic eye) superhet with RF stage 5-band (bandspread) radio. Available in mantel, console, and radiogram cabinets.

• Author
• Model page created by Brian Stevens. 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