Logic testers are simple but very helpful devices in testing digital circuits. A logic probe can be designed in many different ways. In this particular design, a combination of discrete and TTL logic ...

The schematic makes putting this together only slightly more complicated than snapping Legos together. Of course, the resulting device is not as versatile as a LogicPort logic analyzer, but it is ...

Measurement instruments mustnot affect the circuits they’remeasuring. A logic probe, for example,must correctly detect logic levels, and itmust place no undue loads on the testcircuit. The logic probe ...