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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter to Joseph Lucas, Ltd. confirming requirements for a special experimental voltage regulator.

Identifier  ExFiles\Box 60\3\  Scan310
Date  19th January 1935
  
86092.

Hs{Lord Ernest Hives - Chair}/Wst.3/MA.
19th January, 1935.

Messrs.Joseph Lucas, Ltd.,
Great King Street,
Birmingham, 19.

Experimental voltage regulator.

Dear Sir,

We confirm our telephone conversation with
your Mr.C.E.Robinson of the Laboratory when we asked him
to arrange for a special experimental Lucas regulator to
be made up for us to operate at the following values (hot):-

O.C. volt operation - 17.0 to 17.5 volts.
Volts when passing
a current of 3.75
amperes - 12.5 to 13.5 volts.

We are arranging for a covering order to be
sent to you for this regulator and should esteem it a
favour if you could let the undersigned have the
regulator as speedily as possible.

Yours faithfully,

FOR ROLLS-ROYCE LIMITED.
  
  


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