The Turn Of The Century Electrotherapy Museum (C) Jeff Behary 2006 - Huge Spark Gap! 1/2" 2% Thoriated Tungsten 5-Series Quenched Spark Gap

The Turn Of The Century Electrotherapy Museum (C) Jeff Behary 2006 - Huge Spark Gap! 1/2" 2% Thoriated Tungsten 5-Series Quenched Spark Gap
jeff_behary@hotmail.com
9/16/2006