Rolls-Royce Archives
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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).
Cost comparison of ballast resistors and various batteries, including alternatives under testing.

Identifier  ExFiles\Box 50\1\  Scan026
Date  1st November 1923 guessed
  
-2-

Ballast resistance. (X.3716).

Present works cost of production
£1 - 7 - 7d.


Battery. (X.607 X.4053. X.4288)
Present quantity price of Exide 6 BXE 5 batteries
£8 -10 - 0

Alternatives :-
X.979. Tudor CLG.9 £7.17.6
X.3629. De Martis. £8.14.7 less 2%.
( - £8.11.1).
X.4283. C.A.V. Willard. £6.12.8.

These last three are going through bench tests,
none available for expl. cars at present.


Contd.
  
  


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