The phasing exciters didn't have very good carrier suppression and 
often the unwanted sideband was nearly as loud as the desired 
one.  What a difference fifty years makes!
Pat, K9JAUAt 03:01 PM 4/1/2015, you wrote:
>You are probably right, that waws a bit before my time.  I know my
>national ncx 200 tranceiver had a vfo that was same no matter what band
>you were on, they switched crystals.  40 and 15 actually tuned the
>opposite directions, very strange.  Swan, at least the ones I had,
>actually switched vfo frequencies when you changed bands.  No days,
>everything is locked to one master oscilator which is way cool.
>73
>Butch
>WA0VJR
>Node 3148
>Wallace, ks.