TO TEST A CIRCUIT
In hooking up a home-built radio set for the first time it sometimes happens that the circuit fails to work. Often as not the trouble is not in the hookup used or in the workmanship and skill with which yon have assembled the receiver, but lies in a faulty piece of apygratus, a burned out or open transformer, or in other defective parts. Before trying your set out on the air it is a good plan to test ont every piece of apparatus and every connec. tion with a test lamp and battery te make sure that all connections are perfect and all apparatus in good condition. To test, connect a one and one half volt dry cell or flashlight cell to 2 small one and one half volt flashlight bulb. ‘The two ends are for testing apparatus and connections for oper circuits. The bulb will light uy whenever the circuit between the twe iwires is completa
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https://paperspast.natlib.govt.nz/periodicals/RADREC19280713.2.59
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Radio Record, Volume I, Issue 52, 13 July 1928, Page 15
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161TO TEST A CIRCUIT Radio Record, Volume I, Issue 52, 13 July 1928, Page 15
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