Is it worth adding a notch to the LPF mods suggested at R27?? For those of us where -43dB is not enough. (-50dB is the spec in VK)
eg reduce the 'input' 300nH to 220nH with a 15pF in parallel. (maybe do it for the other 300nH also)? 220nH is 8t on same toroid.
glenn
vk3pe