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Old 26th Nov 2019, 4:52 pm   #37
Herald1360
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Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,526
Default Re: Neon Tester Screwdrivers

Quote:
Originally Posted by rambo1152 View Post
At least that Death Radio makes an attempt to isolate the metal case.

This set however, well see for yourself!

https://youtu.be/eib6GSYS4CQ?t=229
Yes it's potentially dangerous, as in only one component needs to fail to make it so, but the guy is being a bit precious. Not to mention that his (presumably high impedance) meter would read mains even if the RF ground capacitor and its discharge resistor were perfectly OK.

Restored correctly with the isolated ground bus genuinely isolated from the chassis / case and the RF grounding capacitor replaced by a suitable value Y-class part it will be safe enough on 120V mains. Maybe add a mains ground to the case just for added belt protection.
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