Letter from George Dawson to William Grey Walter, 26 August 1943
- part of archive:
- Papers relating to the clinical and experimental neuroscientific work carried out at the Burden Neurological Institute
- Dawson, George Duncan
Describes the success of coil winding attempts with the Grass ink writers. Uses 46 and 47 swg which creates high resistance coils giving 3500 ohms and 5000 ohms respectively. References records which are no longer attached.