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What better way to spend a few months in the workshop than by heating Copper chloride to 400° C, building rotary spark gaps and 30kV capacitors, playing with high vacuums and building a very powerful laser? It’s just a day in [Jon]‘s life as he builds a DIY Copper vapor laser. Copper vapor lasers require temperatures of about [...]

Tags:  copper laser vapor jon copper-vapor-lasers copper-vapor-laser copper-chloride hacks