High frequency apparatus, design, construction and practical application; a practical treatise for electrical engineers, electricans, physicians, students and experimenters (1920)
Curtis, Thomas Stanley · New York, Norman W. Henley publishing company · leaf 169
If the pointer does not describe a full-scale deflec-tion, cut a narrow strip from the shunt and try again.Continue this paring operation until the needle sweeps tothe end of the scale when the full amount of current ispassing. For electro-therapeutic purposes, the meter will requireno heavy shunt… … Fig. 85.—The meter in its case Spindle 4, within the coils of silk thread. This is a damtyoperation but patience is rewarded by success. The threadwill give some trouble owing to its propensity for absorb-ing moisture and changing its length in consequence. Theonly remedy is either to seal the case…
Electric apparatus and appliances
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