After about five years since I started with homebrewing amplifiers a new amplifier with a GS31b triode was the next project on my list. With many parts of the first AMP it was not to hard to construct the new AMP in about 4 month. I started in May 2007 and was able to put the first signal “on air” in the late August 2007. After my trip to Kenya I could finish the project in 2008.
In the meantime there were lots of QSOs with that AMP and it did a wonderful job during major contests too.