Projects

Here is a collection of some of the projects that I have documented. I hope you find them useful and interesting.

Electronic/mechanical projects

• A hybrid vacuum tube audio amplifier
  
• Using Arduino to make an automatic fish-feeder
  
• An electronic moving-slot panoramic camera
  
• Building digital spot- and incident exposure meters
  
• An analog integrating light-meter for pinhole cameras
  
• Electropneumatic firing system for Airgun Designs RT valve markers
  
• A solar cell testing and characterization station
  

Photographic projects

• Fun with flash powder
  
• Inexpensive IR filtration with color lighting gels
  
• A Rodinal, HC110 and D23 developer comparison
  
• Tone modification with color filters
• Plumbing up a darkroom sink