• Country
• Great Britain (UK)

• Manufacturer / Brand
• Ultra Electric Ltd.; London

• Year
• 1951

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 96336

• • alternative name: Ultra Radio and Television

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

• Number of Tubes
• 4

• Valves / Tubes
• 1C1 1F3 1FD9 1P11

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 200-250; (7,5 / 85) Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12 cm = 4.7 inch

• Power out
• 0.3 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Carnival Twin R746 - Ultra Electric Ltd.; London

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 305 x 200 x 145 mm / 12 x 7.9 x 5.7 inch

• Notes
• Uses an S.T.C DRM 2B as rectifier.

• Net weight (2.2 lb = 1 kg)
• 4 kg / 8 lb 13 oz (8.811 lb)

• Price in first year of sale
• 247.00 Hfl

• Source of data
• Technisch- Commercieel - Radio Vademecum Staleman

• Author
• Model page created by John Koster. See "Data change" for further contributors.

• Other Models

• Here you find 235 models, 153 with images and 149 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ultra Electric Ltd.; London