[Hallicrafters] Which models had the 50KC I F?

[Ronald Oberloh]

Not sure why my last post was sent 6 times.  Lets see what this one does.

Ron  WA0KDS

Ronald Oberloh wrote:

> The Drake 1A,2A,2B,2C,R4,R4A,and R4B all used the 50 kHz IF.
>
> Ron  WA0KDS
>
> Bruce Muscolino wrote:
>
> > The model I am familiar with is the S-78.  There were others.
> >
> > A 50 kHz IF is better than a 455 kHz IF because it gives a sharper
> > response without resorting to crystal filters.  IF selectivity's on the
> > order of 500 hZ can be had with just the LC IF circuits.
> >
> > 73
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