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Newspaper
Indiana Progress
Location
Indiana, Pennsylvania, United States of America
Date
Jul 19, 1922
Page
9
In a three electrode vacuum tube a detector operates on the knee of the characteristic curve. By adjusting grid and filament potentials via battery potentiometers the tube can serve as a detector or fail to function if biased improperly. A grid condenser and grid leak resistor enable detection while preventing rapid battery drain.
Be advised that a ground antenna using a long insulated wire in a trench or on the ground can cut stray signals. Run the wire toward the station with the strongest reception and extend it several hundred feet. A variable condenser in the antenna circuit lets you lengthen or shorten wavelengths with finer loading adjustments.
The piece notes railroads broadcasting safety warnings to audiences in Pittsburgh Chicago Newark and Springfield Maas citing 84000 annual trespass deaths or injuries. It mentions a paper tape device recording incoming signals for learning the code and a Santa Lulea broadcast heard 4000 miles away near Newark. It also covers amateur radio policy with 200 meter spark and 2 meter continuous wave limits.
Notice to heirs and creditors to present claims for settlement of Mehta C Stewart estate in Washington Foodstip area. Administratrix Hulda L Stewart of Avookstle Minn requests all known parties to come forward by July 14.
Letters of administration on the estate of James G Critles late of South Mahon Ing township, deceased, granted to the undermentioned. All persons having claims against the estate are requested to present them duly authenticated for settlement, and those indebted to the estate are asked to make prompt payment. Dated June 14 1922. Administrators Mary II Cribbs ALS of Lt D Smickeburg PA.
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