[Elecraft] Front end protection

[W0MU Mike Fatchett]

Why is it that no manufacturer has created a field replaceable front end 
protection scheme?  Many of us are using multiple radios or in Multiop 
situations.  Stuff happens.

In the case of the K3, D25 which we think has gone bad for whatever 
reason in my radio is a surface mount diode that cost essentially 
nothing but is not easily replaced.  Why?  Is there no way to provide an 
easier user replaceable part or a cost effective protection circuit 
board that would be field replaceable?