TM393 RLC bridge

The RLC bridge measures the values of resistors, capacitors and coils. After connecting the component, the operator would adjust the dial until the meter showed zero. Then, the value of the component could be read from the dial. This measurement method is very precise, but also time-consuming. Today, direct measurement is possible by various methods, e. g. automatic bridges. The TM393 was manufactured by Tesla Brno for approx. 30 years in a row.