DIY Test Equipment for Audio and Ham Radio Enthusiasts


Posted on Feb 4, 2014

This neat device replaces the input transistors and associated circuitry on one TO-220 style device. I had some driver boards made by my printed circuit house and decided that replacing the original driver board with the new PCB.


DIY Test Equipment for Audio and Ham Radio Enthusiasts
Click here to download the full size of the above Circuit.




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