Quote:
Originally Posted by RichardT10829
Chris, I may need to image the switch as there is no glass bead on the end, its chrome but with clear green paint on the tip which is scraped away.
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Ah, I was thinking "Supply Unit No.2" which has a wildly different switch.
The only real test is a geiger counter, but...
Paint that looks "burned brown" may well be radioactive (and the phosphorescent zinc sulphide that caused it to glow has been rendered non-luminous).
Paint that is light green may be plain zinc sulphide luminous variety: shine a strong light on it in a darkened room; if it glows after you turn the light off it's the safe variety.
Chris.(G8KGS)
28-07-18, 14:26
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