He may say that JC was his first mentor, but I have found the truth.
On eBay is the amplifier on a cart true inspiration of Mr. Slagle. The text said it belongs to a 90 year old ham radio operator, so it clearly predates Dave's New York Noise work.
All About the Reflex Enclosure - Part 2 - P.G.A.H. Voigt - This is part 2 of a series by the legendary Voigt. http://www.itishifi.com