Be sure to check out the rest of this guys stuff, like the homemade CRT, flame triode, magnetic amplifiers, etc. http://www.sparkbangbuzz.com/ http://www.spark

Be sure to check out the rest of this guys stuff, like the homemade CRT, flame triode, magnetic amplifiers, etc. http://www.sparkbangbuzz.com/ http://www.sparkbangbuzz.com/