- Country
- Great Britain (UK)
- Manufacturer / Brand
- Ultra Electric Ltd.; London
- Year
- 1947 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 243222
-
- alternative name: Ultra Radio and Television
- Number of Tubes
- 5
- Number of Transistors
- Semiconductors
- Metal-rectifier
- Main principle
- Superheterodyne (common); ZF/IF 471 kHz; 2 AF stage(s)
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast, Long Wave and Short Wave.
- Power type and voltage
- AC/DC-set / 200-250 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Power out
- 6 W (unknown quality)
- Material
- Wooden case
- from Radiomuseum.org
- Model: U511 - Ultra Electric Ltd.; London
- Shape
- Tablemodel, slant panel.
- Notes
Push Pull Beam Tetrode audio output.
Wavebands:
- LW: 150 ... 300 kHz
- MW: 545 ... 1500 kHz
- SW: 6 ... 18.5 MHz
IF trap on aerial with variable capacitor.
Tone control.
Gram/PU sockets for crystal/ceramic and magnetic (using a transformer).
Requires external aerial.
Separate dropper taps for series heaters and HT according to mains voltage.
Price excludes tax of £5.75 in 1947
Mains Scale/Dial Lamp 15W (sewing machine type)
Warning: AC/DC type with potentially live chassis (either when on or off!), deliberately uses single pole mains switch in "Neutral" to chassis for minimal hum pickup on volume control. So isolation capacitors should be Y rated safety types, Earth to Chassis, Aerial, Magnetic and Crystal "P.U./gram" inputs.
- Price in first year of sale
- 26.75 GBP
- Literature/Schematics (1)
- Radio And Television Servicing books (R&TVS) (1951 Edition Vol I pg 530)
- Author
- Model page created by Bartosz Szwed. See "Data change" for further contributors.
- Other Models
Here you find 223 models, 135 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