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C
Cameron BryanJul 27, 2025
Why does the light fail to operate on my National Microscope?
- LleecampbellJul 27, 2025
The light on your National Microscope might not be working due to several reasons: the batteries may be fully discharged (recharge them), the rheostat control might not be turned up enough (increase the light intensity by turning the rheostat), the light switch could be off (turn it on), the LED bulb might be burned out (replace it), or the fuse might be blown (replace the fuse).
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