(Topic ID: 240135)

Hollywood Heat Drop Target Coil Blowing Fuse (Always energized)


By atrainn

6 months ago



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#7 6 months ago

Check the 4.7K resistors on the base of the final drive transistors. These resistors are required to turn 'off' the transistors when they are no longer being driven by the driver board.
See illustration by supermoot for the pullup resistors on Q6, 7 & 8.

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