Overcoming Broad Tuning
"'THERD is a satisfactory method of overcoming the broadness of tuning of the screen-grid valve," said a Wellington listener to "Switch" last week. "I have a set using three stages of screen-grid radio-frequency amplification, which is extraordinarily sensitive. I tried it on an outdoor aerial, but found that the set was very broad in tuning. Then I tested it on about ten feet of insulated wire as an aerial, and it was knife sharp in the tuning, besides bringing in the Australian stations. Cut: down the length of your aerial, is my advice to owners of screen grid sets, if you reside within a few miles of a broadcast station."
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https://paperspast.natlib.govt.nz/periodicals/RADREC19291227.2.28
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Radio Record, Volume III, Issue 24, 27 December 1929, Page 8
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113Overcoming Broad Tuning Radio Record, Volume III, Issue 24, 27 December 1929, Page 8
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