Letter from William Grey Walter to George Dawson, 11 August 1943

Response to BURD/A/12/GD1. Confirms phase shift effect at low voltages and promises further investigation. Comments that his Grass ink writer coils are now prepared by the Admiralty.

Details

Extent:
200
250
Identifier:
BURD/A/12/GD02
Access:
Open Access

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