Vibrating bar designed to supply current at 50Hz to time-marker used with electrocardiograph

Made:
1934 in Cambridge
maker:
Cambridge Scientific Instrument Company Limited

Vibrating bar designed to supply current at 50Hz to time-marker used with electrocardiograph, by Cambridge Instrument Company Ltd., England, 1934

Details

Category:
Clinical Diagnosis
Object Number:
1979-731/3
Materials:
carbon, steel, brass, rubber and plastic
type:
electrocardiographs
credit:
Royal Postgraduate Medical School