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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).
Instruction sheet comparing condenser leakage with different varnishes and noting the effects of modified connections.

Identifier  ExFiles\Box 52\3\  Scan175
Date  24th April 1924 guessed
  
Order No.: P.C. 40 (2)

the condensers with varnish. Leakage takes place at about the same point, and the curve rises in the same way as with standard condensers.

In respect of leakage, it is interesting to note that the Slo varnish appears to be worse than the Stickitilene, as SE (the condenser sealed with Slo varnish although having a lower initial capacity, has gone higher than SS. {S. Smith}

As regards the two condensers with the modified connections, no bad effects due to the modifications have been observed, these appearing to be quite normal.

Signed: C.A.P.
  
  


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