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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).
Quotation from H.W. Sullivan for insulation testing transformers.

Identifier  ExFiles\Box 32\4\  Scan021
Date  6th November 1920
  
X.1581

H.W. SULLIVAN,
368 & 369 WINCHESTER HOUSE.
LONDON, E.C.2.

Your ref : Wd{Mr Wood/Mr Whitehead}/Ms6/FJ27.
Enc. 1
6th November, 1920.

Dear Sirs,

X.1109 Transformer for Insulation Testing. X 1581

I regret your enquiry of the 27th ultimo has not been answered earlier.

I now have pleasure in quoting as follows :-

2 Single phase oil filled Potential Transformers 500 watts output, designed for a voltage ratio of 20/20,000 and for a periodicity of 50 cycles per second. @ £48. each.

This price includes delivery of an oil immersed coil type Transformer contained in a plain steel tank complete with the necessary quantity of oil. Delivery eight to nine weeks.

I enclose a copy of my Catalogue of Wireless Apparatus which may be of interest to your Engineering Department.
Awaiting the favour of your reply.

Yours faithfully,

Messrs. Rolls-Royce Ltd.,
D E R B Y.

H.W. SULLIVAN.
GENERAL MANAGER.
  
  


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