Thoughts of transistors measurement

A project log for 10$ curve tracer

Simple, quick and dirty curve tracer for diodes measurement

jaromir.sukubajaromir.sukuba 04/27/2014 at 20:370 Comments

I see there is a few people following this project, so just to know it is not dead - I thought of transistors measurement. Measuring 2N3904 at 20mA is simple task, but what about 2N3055 at 10 amps? Yes, it can be done with impulse measurement - this way I can measure it without heatsink at huge collector currents. What more, I don't need bulky power supply, just good capacitor.

The devil is in details, as usually. Switching between NPN/PNP requires a few relays, connections to transistor have to be quite bulky, so the simplicity of my first design is gone.

When I'll finish my part of work on JJ tricorder (deadline of HaD sci-fi contest is in two days) I'll try to sey up simple test bench for transistors.