Colin Wonfor's experience as a chemist, power supplies expert & audio designer is extensive. His CV includes organisations such as British Petroleum, the M.O.D., NASA, IBM, Naim, Cambridge Audio, Reid Electronics and many, many others.
Of interest was his work for NASA on the International Space Station, which included work on the solar array and power conversion (and the quietest switching power supply in the... or above the world).
His work is never far away - the ISS (look up), your computer, mobile device, TV, your automobile, Disneyland...
Don't forget one4audio, where his famous class A designs can be found in kit form, for the keen DIYer.