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.
Universal IR Remote receiver
Recently built a PIC16F877 based univesal remote receiver from a design in Elector Electronics
ATM18 Chess Computer
Recently built a ATM18 based Chess Computer from a design in Elector Electronics