Nixie Clocks
George has recently developed an interest in Nixie tubes and has enjoyed building some into clocks
Jenny's first question was what is a Nixie tube? Well these devices were introduced in the early 1950's and are a form of numerical indicator using wire numerals that glow in neon gas - the whole thing being encased in a glass envelope, in a similar manner to a thermionic valve.
A voltage of 130 - 180V is applied to the required numeral, which glows a pleasing orange red colour.
So far he has built 2 clocks, one that has pride of place in the lounge and the other is in an unfinished state waiting for him to decide what to do with it
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