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Old 24th Aug 2018, 4:28 pm   #30
dseymo1
Retired Dormant Member
 
Join Date: Dec 2007
Location: Shropshire, UK.
Posts: 3,051
Default Re: Quick-and-dirty testgear: mains voltage monitor.

Similar dual I & V meters are available with independent power supplies. I used a pair in my bench supply - the meters are powered by an additional winding on one of the main transformers.
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