Author Topic: Knocker Coil Locked On  (Read 2868 times)

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Offline Mr Pinbologist

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Re: Knocker Coil Locked On
« on: September 06, 2015, 03:47:42 PM »
Those readings seem ok but checking transistors with a multimeter sometimes doesn't tell the whole story.
I've seen transistors many times where they check ok on a meter but are still bad, ie they break down under operating conditions in circuit. Diodes can also fail in this way.

Another test is to check across the collector and emitter with the meter set on ohms, you should get infinity reading.

 
« Last Edit: September 06, 2015, 03:50:59 PM by Mr Pinbologist »