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Old 3rd Dec 2019, 7:27 pm   #40
Vintage Engr
Heptode
 
Join Date: Jan 2008
Location: Shrewsbury, Shropshire, UK.
Posts: 824
Default Re: Neon Tester Screwdrivers

That's it, "Switch off, Isolate, Dump, & Earth"

Otherwise you'll be like the poor technician who returns to an H.V. installation, - from a dentist's appointment, only to find out too late that his colleague has reversed the connections of an inductor/capacitor circuit. Big bang!

Anyone remember the BBC-2 colour test film, circa 1967/8?
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