We have all had difficulty testing diodes in-circuit. Most DMM’s have a diode Vf function that measures forward drop, but what is the normal voltage drop? Analog VOM’s attempt to measure resistance of ...

Figure 4 shows an assembled zener-diode-tester circuit. The zener diode under test is On Semiconductor‘s BZX55C15RL, which has a working voltage of 13.8 to 15.6V. The voltage in Figure 4was measured ...

For testing diodes, the waveform generator is configured ... it should behave like an open circuit. For testing cables, the waveform generator is configured to output a 100-Hz, 0-V to 1-V square ...

The unit can also be used for basic diode tests on bipolar transistors, although the test current may be too high for the base connection of some devices. The circuit was designed to be simple and ...

A simple way to test whether a component is active or not ... A special type of component is the integrated circuit (IC) where large numbers of transistors, resistors, diodes, and other electronic ...