The sBitx appears to be using the same improved inductors that the QDX switched to after early problems. ?But I’m still seeing some bleed around. ? It looks like Ashhar is providing about six times the bias current for the 1N4007’s. ? We are running about 2 to 5 times the power output, but the current wouldn’t be increased but by the square root of that amount. ? And where I’m seeing the problem is on the higher bands —not the lower freq bands where you would think the charge carriers would be hard-pressed to stick around long enough. ? ? Not sure if carefully selecting the diode’s or running 2 in parallel would make an improvement?
gordon
