Use 2SK125 replace the origional FETs(I thns it is 2SK520).
Xu
> In my radio (and also another one), I found that excluding the preamps
with
> AIP button reduces a lot the noise, do you think that it would be useful
the
> substitution of the original preamps (mosfet for 10m and parallel of fets
> for the other bands) with some kind of low noise and high dynamic range
> preamps?
>