Roy Lewallen wrote:

...
Wes Hayward had a picture of a KWM-2 partly protruding from a bin
labeled "Old Junk". I believe he included it in his _Solid State Design
for the Radio Amateur_. The explanation is that it had been modified by
replacing well designed, high dynamic range tube circuits with much
poorer solid state circuits by someone who didn't understand the
principles of high dynamic range circuit and receiver design. The result
was a receiver with very poor intercept values and consequent severe
problems with intermod and other spurious responses. The well-meaning
modifier had turned a very good receiver into Old Junk.

Roy Lewallen, W7EL

True, I have never seen a fet(s)/MMIC do anything a tube, or a few
tubes, can't do--the solid state devices just do it better ...

Regards,
JS