Tag «Cable Tester»

In-Circuit Automotive Fuse Tester

This is a schematic diagram of auto fuse monitor circuit. This circuit is very useful for automobile application, checking a live fuse without wasting any electrical power if the fuse is working fine. This circuit can check the fuse  without removing the fuse from the working circuit. When the fuse is being tested, this fuse …

Multilevel Continuity Tester

This continuity tester not only show if a connection is continue or not, but also determine the range  of  its conductivity level. Here is the schematic diagram of the circuit: Finding wiring trouble is easier if we know the quality of the connection, and this continuity tester give rough estimation. Small transistors will be sufficient …

Cable Reflection Tester

This is a Cable Reflection Tester circuit. This circuit can be used to check coax cable runs for shorts or even impedance mismatches. This circuit will send a pulse down the circuit, then the return signal can be checked on an oscilloscope. The distance can be determined by using this equation:distance = time x speed …