Re: Nernst Lamps
Very generous of Andy to devote so much time to YT, the previous clip summarised (some rare) fluorescent tubes, eg coloured ones with bayonet caps, half-phosphored ones, etc. Also a demo of just how little inert gas is actually present in a T12- only about 2 or 3% by volume.
The few Nernst type lamps for sale online are several hundred quid- and almost certainly broken!
Dave
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