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Coronation Twin R786

Coronation Twin R786; Ultra Electric Ltd.; (ID = 547394) Radio
 
Coronation Twin R786; Ultra Electric Ltd.; (ID = 547395) Radio
 
Coronation Twin R786; Ultra Electric Ltd.; (ID = 1001158) Radio
 
Coronation Twin R786; Ultra Electric Ltd.; (ID = 1001159) Radio
 
Coronation Twin R786; Ultra Electric Ltd.; (ID = 2307008) Radio
 
Coronation Twin R786; Ultra Electric Ltd.; (ID = 2307009) Radio
Coronation Twin R786; Ultra Electric Ltd.; (ID = 2383559) Radio Coronation Twin R786; Ultra Electric Ltd.; (ID = 187602) Radio
Coronation Twin R786; Ultra Electric Ltd.; (ID = 238023) Radio Coronation Twin R786; Ultra Electric Ltd.; (ID = 238027) Radio
Coronation Twin R786; Ultra Electric Ltd.; (ID = 694849) Radio Coronation Twin R786; Ultra Electric Ltd.; (ID = 800722) Radio
Coronation Twin R786; Ultra Electric Ltd.; (ID = 1156105) Radio Coronation Twin R786; Ultra Electric Ltd.; (ID = 1618843) Radio
Coronation Twin R786; Ultra Electric Ltd.; (ID = 1622747) Radio Coronation Twin R786; Ultra Electric Ltd.; (ID = 1622769) Radio
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Coronation Twin R786; Ultra Electric Ltd.; (ID = 2383559) Radio
Ultra Electric Ltd.;: Coronation Twin R786 [Radio] ID = 2383559 945x709
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For model Coronation Twin R786, Ultra Electric Ltd.; London
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Ultra Electric Ltd.; London
alternative name
 
Ultra Radio and Television
Year: 1953 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: 1C2 1F3 1FD9 1P11
Main principle Superheterodyne (common); ZF/IF 471 kHz
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Line / Batteries (any type) / 200-250/85+7,5 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
Power out
from Radiomuseum.org Model: Coronation Twin R786 - Ultra Electric Ltd.; London
Material Bakelite case
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 12 x 8.5 x 6.5 inch / 305 x 216 x 165 mm
Notes Released April 1953 price £13 10s 4d plus purchase tax. AC/DC mains or battery.
Source of data Radio! Radio!
Mentioned in -- Original-techn. papers.
Literature/Schematics (1) Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (1100)

Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.



All listed radios etc. from Ultra Electric Ltd.; London
Here you find 218 models, 128 with images and 149 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




 


Forum contributions about this model
Ultra Electric Ltd.;: Coronation Twin R786
Threads: 1 | Posts: 6
Hits: 2238     Replies: 5
ultra: Ultra R786 Mains Lead
Jamie Skinner
23.Dec.11
  1

Hi everyone, Does anyone know where I can find a suitable mains lead or find a connector that will fit the Ultra R786.

I have obtained this set and it is missing.

I have been told the Bush DAC90A Plug might be the same?

The measurement bewteen pin centres on the DAC90A being 17mm. (0.67inches)

Howard Craven
23.Dec.11
  2

Hello Jamie,

The Bush DAC90A plug is nothing like the plug that fits the Ultra Twin. The plug for the Ultra is unique and is very difficult to find on its own.

I can post a pic of the two plugs together if you like.

Regards ........... Howard

Surrey Hills, England

 

 

 

 

 

Jamie Skinner
23.Dec.11
  3

Thanks Howard, this would be very helpful as I might want to replicate one.

Failing that I would have to fit a permenant mains lead, or a 'Figure 8' connector.

 

Cheers,

Jamie.

Howard Craven
23.Dec.11
  4

Hello Jamie,

Here are the Bush and Ultra plugs.  Note that there is a step on the Ultra plug which operates the battery cut-off switch when pushed into its socket.

Regards ........... Howard

Surrey Hills, England

 

 

Michael Watterson
23.Dec.11
  5

Actually it's quite simple to make a custom socket (the plug is on the Radio and it's technically a cable socket on the flex). It would be a shame to spoil the radio set.

Perhaps I should do step by step guide.

Jamie Skinner
23.Dec.11
  6

Thanks Mike, It would be very useful for a step by step guide to be written up.

However, this set has a lot of damage to the bakelite and will require a lot of filler etc, so for this specific set anyway fitting a standard 'Figure Of Eight' socket wouldn't de-value it.

It would still be interesting to attempt to replicate a plug. I have placed adverts in various places so I might get a plug yet.

 

 

 
Ultra Electric Ltd.;: Coronation Twin R786
End of forum contributions about this model

  
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