04/27/2014 at 20:37 •
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 http://hackaday.io/project/521-JJ-Tricoder (deadline of HaD sci-fi contest is in two days) I'll try to sey up simple test bench for transistors.
03/24/2014 at 13:24 •
Complete set in action: