Angstroms Method Of Thermal Conductivity

Thermal conductivity of copper by angstroms method. Power supply for angstroms method. In put voltage 230 .out put voltage 0 to 50ac . current 0 to 10 ampr . Depend onthe specimens. Switching arrangements giving in the power supply controlled by selectors awitch mounted on the frunt pannel . Specimen copper or depend on the user heating arrangements 200degree up.