TRANSFORMER ALTERATION
A good many transformers and chokes are supposed to be sufficiently shielded by their own covers, but in practice often these covers are sadly (jeking in shielding properties. The result is that in a mains set, for instance, you will get a hum owing to the circuits interacting with one another. In order to serve as a shield, the cover of the component should be very much thicker than that generally used. The usual precaution to place transformers—for instance, the power transformer and any nearby in ter-valve transformer—at right angles to one another, goes a long way to avoiding trouble, however, and if you are not sure about it you might try connecting the inter-valve transformer by means of leads a few inches long, so that you can shift it about and turn it in different positions until you get the best result.
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https://paperspast.natlib.govt.nz/newspapers/HBTRIB19320615.2.99.4
Bibliographic details
Hawke's Bay Tribune, Volume XXII, Issue 154, 15 June 1932, Page 10
Word Count
145TRANSFORMER ALTERATION Hawke's Bay Tribune, Volume XXII, Issue 154, 15 June 1932, Page 10
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