![]() ![]() That’s where the curve tracer takes over.Ī curve tracer is a more-sophisticated device intended to display the operating characteristics, over a range of voltages and currents, of a transistor instead of just one or two arbitrary data points.Ĭurve tracers run multiple tests on the transistor, each at a different voltage and current, then display the resulting data points as curves plotted against the axes of voltage and current. Transistor testers will not display how a transistor will perform in your circuit or application. Is it shorted or not? Which leads are the emitter, base, and collector? For purposes of comparison only, what is its gain at an arbitrary voltage? Like many of the vacuum tube testers, the common transistor testers only reveal very basic information about a transistor. Note: If you have experience with a transistor testing device that isn’t on the list yet and which might help other AK’ers, please let me know and I’ll add it and your notes to the index and thread.įor our purposes here, a transistor tester is a device intended to be used to test the basic functionality of a discrete transistor and show a small number of arbitrary data points about that transistor. Note: If you have experience with one of these devices that might help other AK’ers reading this, please share that experience below. Index of transistor testers covered in this guide.Short answers on “which one should I get?”.What transistor testers can and cannot do.I am no expert nor am I a professional technician or E.E., so some of the following will be off or even wrong… until kind AK’ers contribute constructively to make this a better, more accurate, more helpful guide. I had collected a bunch of links in my browser to help me navigate the choices, then realized the list and info would be better if shared with everyone and with more opinions and experience from others. Below is a listing of some of these devices you may be interested in, some of the information about each device, and, hopefully, a bunch of comments from other AK’ers who have experience with the listed devices. There are a bunch of devices and DIY kits that help one understand “does this transistor work” and often reveal a few basic performance specs.
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