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  1. 23-06-2019 #20
    Voicecoil's Avatar
    Lives in South Lakeland, United Kingdom.
    Voicecoil
    Last Activity: 07-11-2023 Has been a member for 6-7 years. Has a total post count of 610. Received thanks 87 times, giving thanks to others 14 times. Referred 1 members to the community.
    It's worth checking your connections (with a DMM set to ohms/continuity) - one probe on the connection to the PSU, one on the workpiece. In my setup (I use sodium bisulphate) I'd be expecting about 0.7...0.9A on 31in2 @ 20 deg C - always seems to be less than the 720 rule predicts, so I just run it for proportionately longer.
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