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).
Side lamp over-voltage protection and a dynamo scheme for the 20/25 chassis.

Identifier  ExFiles\Box 163\6\  img167
Date  8th June 1932
  
-2- He/Wst.4/KT.8.6.32. cont'd

(b) The side lamps are protected against over voltage because the full charge only comes on in the headlamp position.

Unless we adopt a similar scheme as this on 20/25 chassis with a 40/50 dynamo fitted we shall ruin the batteries during summer running.

He/Wst.
  
  


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