OT Don't read this (was Re: Altair MBL source)

[Geoffrey Thomas]

> > 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.