Hartley Continuity Tester (CB11947E)

Details
Written by: Newton C. Braga

 

In the figure we show how to use a small Hartley oscillator as a continuity tester. The component values are those of CB11946E and the transformer is of the same type. Resistances of a few thousand ohms can be verified with this circuit.

 


 

 

 

  

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