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).
Request to obtain a non-inductive resistance unit for aero ignition coil shunt resistance tests.

Identifier  ExFiles\Box 163\6\  img297
Date  22th November 1935
  
86016

EJJ. From Hs{Lord Ernest Hives - Chair}/Wst.

Hs{Lord Ernest Hives - Chair}/Wst.10/MA.22.11.35.

AERO IGNITION COIL SHUNT RESISTANCE TESTS.

Will you please obtain for us from Messrs.
Standard Telephones & Cables Ltd., one non-inductive resistance unit 200,000 ohms (plus 50 ohms permissible tolerance) capable of carrying for short periods 25 milliamperes.

Hs{Lord Ernest Hives - Chair}/Wst.
  
  


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