All posts by Javier Galvan

Sources 101

This was a great article and I actually built a test circuit based on Figure 16a in part 2 of the article.  However, I wanted to use the source for a mosfet in a headphone amp circuit.  The circuit is designed to operate the mosfet at 150 mA.  I used a more robust transistor in place of the pn2222a.  It worked just fine and I was able to dial in 150 mA of current.  However, I don’t have the test equipment to measure performance.   I’m curious if anyone has tried to get more current out of this circuit and what type of performance resulted.