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27-11-2013 #9
Last Activity: 17-06-2020
I've switched to a 9VDC battery, not much difference, after which I've earthed the driver chassis, which dropped the noise levels significantly. Comparison between a battery supply and plug-in DC supply with the driver chassis earthed:
I'll stick with the plug-in supply and keep everything earthed.
Regards,
dsc.
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