Yes, 0.5W is all I managed to achieve out of the '5 watt' PA. Was more 'acceptable' than the 20mW barefoot that I was getting before I added the PA.
I did try a 2N4427 driver instead of the BS170 and got almost 1 watt out but it (2n4427) overheated and blew during experiments. I have not changed any caps. There comes a point in experimentation when I stop and just use the kit.?
If anyone can do better, lets hear from them...
73 Ken G4APB
