I was involved with the development of a 5 kW hydro-electric power generator in 1985. It has now run for 25 years and I publish this description of the plant to celebrate. Continue reading ‘A small DIY hydro-electric power generator’
Monthly Archive for March, 2010
I have produced the control system for several pipe organs using electro-magnetic solenoids for the stop actions. I just finished a new one where we use pneumatic cylinders to provide force. A pneumatic system can actually work without producing much noise if set up correctly. So we are very happy with this new organ in St. Johannes church, Stavanger, Norway. Continue reading ‘Pneumatic organ control’
