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Enjoy!
Paul
Dbldutch absolutely gorgeous project, I've been interested in the curve tracker for a very long time, I've built a few simple ones myself, but this is the best I've seen. I wanted to build something better like TEK three years ago (I don't have the money for the original), unfortunately it didn't work out......
I originally wanted to make a curve tracker as well, I made a design, ordered parts and waited. I thought I was waiting too long and started looking for the package, the carrier didn't deliver the package and it got lost - it took me a year to get my money back. In the meantime, I had the opportunity to buy a new NI210, unfortunately it is only up to 60V, its generator does not produce a step waveform and it is not possible to test transistors in the classic way.
I bought it on the one hand at a 30% discount, and because it was not working, I got another 50% discount. The repair was quite wild because the manufacturer burned all the markings of important parts with a laser.