Capabilities and Resistance
Condenser Box Resistance box Resistor box Carpentier Resistor box Carpentier Resistor box Hartmann & Braun
Resistor box N. Tisler Ruhmkorff coil Condensers 0,001 mF Graduated Scale for measurement of resistència d’aïllament i capacitat J. Carpentier Graduated Scale for measurement of resistència d’aïllament i capacitat J. Carpentier
Variable inductance Schering Hartman Braun Bridge Thomson Allocchio Bacchini Bridge  Wheatstone Roller – Smith Bridge Leds & Northrup Potentiometer
Leed’s & Northup potentiometer Leed’s & Northup Potentiometer Variable reluctance Resistance Resistance 0,1 – 1 – 10 W
aïllament resistance and capability Hartman & Braun Resistance Max Kohl Resistance Resistència patró 10 W