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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).
Sending a noisy Lucas E.575 dynamo for testing on car 2 EX to demonstrate hum removal.

Identifier  ExFiles\Box 36\4\  scan 186
Date  21th January 1921
  
X3014
To RHC.{R. H. Coverley - Production Engineer} from EFC.
c. HS{Lord Ernest Hives - Chair}/TMW.
c. Da.{Bernard Day - Chassis Design}
c. EP.{G. Eric Platford - Chief Quality Engineer}
c. EV.{Ivan Evernden - coachwork}

EFC3/T21.1.21.

X.3014 - LUCAS DYNAMOS. X 3443

We are sending in to you a Lucas E.575 dynamo which Mr. Platford has passed over to us from one of his test cars as being unacceptable to him as this is a particularly noisy dynamo. We should like this dynamo fitted to 2 EX and also that this be the machine to which the clamp already instructed is applied or taken off again as the case may be, to finally demonstrate on the car that the hum can be removed in this manner.

EFC.

Dynamo no. 3301
  
  


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