> I wonder if the quality of AM radio ( not
counting the decline in music
> taste)
> has gone down since every thing uses soild state diodes as compared to
tube
diodes.
No. Narrow IFs and lack of design attention due to declining
worthwhile content on AM (plus novelty of FM in the '60s) and
other factors all conspired to make it sound crappy.
There was a design - in the late 60's?- which used a detector which
demodulted both upper and lower am sidebands and fed the result to separate
speakers. Apparently the effect during night time fading was exceptional.
Anybody recall anything about this - Tony ? Sorry if this is ot.