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Modifying instructions for the production of condensers for battery ignition systems.


Identifier  ExFiles\Box 34\1\  Scan038
Date  3rd January 1919
  
To RHC. {R. H. Coverley - Production Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} X.2512. EFC {E. Fowler Clarke - Electrical Engineer} 2/T3.1.19.

X.2512 FE CONDENSERS FOR BATTERY IGNITION X3199 X3129

Regarding condensers ( instructions EFC {E. Fowler Clarke - Electrical Engineer} 6/T121218 and modified instructions under EFC {E. Fowler Clarke - Electrical Engineer} /AT201218) owing to the capacity of the three condensers so far produced not coming up to expectations, we would like to further modify the instructions in such a way that two further condensers (R.R.12 and R.R.13) are produced of 1.250" and 1.500" depth respectively. The condensers already produced or now instructed will therefore now be according to the following table:-

Designation. Type. Aero or Chassis. Depth. Remarks.

produced { (R.R.8 A .500" Capacity .15 m.f.
{ (R.R.10 C .750" " .175 m.f.
{ (R.R.11 C 1.000" " .25 m.f.

now in- { (R.R.12 C 1.250" In process of
structed. { (R.R.13 A 1.500" construction.

The number R.R.9 will not be used as it is considered better to use 12 or 13 for these last two condensers.

EFC. {E. Fowler Clarke - Electrical Engineer}
  
  
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).


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