On Thursday, August 30, 2018, 7:46:10 PM PDT, ajparent1/KB1GMX <kb1gmx@...> wrote:
On Thu, Aug 30, 2018 at 02:56 PM, Kees T wrote:
All of the WA2EBY derived dual MOSFET Amp designs I've seen (IRF510, RD16HHF1, RD15HHF1) have a "compensation capacitor" across the output transformer primary. Used to balance the 3-30MHz range gain. I used one on my 20W Amp kit (and the feedback loop if needed).
Just finished (phase 1) of modifying to the WA2EBY topology ....Success is assured ...removes a metric B**t-ton of spurs and cruft ..Only getting 1 watt at 80 meters (100 mW on 10) but things are looking MUCH better