Answer to Correspondent.
Ben Brown Dhnnision —\n alternating current can be changed mto a continuous current after it has passed through the brushes of a dynamo This cannot be done by an oidmary induction coil , it requires a converter An alternating current cannot be used for an electro magnet in connection with an alarm bell.
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https://paperspast.natlib.govt.nz/periodicals/P19070301.2.23
Bibliographic details
Progress, Volume II, Issue 5, 1 March 1907, Page 179
Word Count
55Answer to Correspondent. Progress, Volume II, Issue 5, 1 March 1907, Page 179
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