[Hallicrafters] Help with SX-42

[Edward B Richards]

HI all;

I am trying to identify my SX-42 so I can get the right schematic for it.
It has no run number and no "SX-42" silk screened on the front panel. Is
this unusual?  I believe it to be an early model because it has a wire on
pin 5 of the AM detector and noise limiter (6H6). Could it be the
earliest run did not have the run # or model # on them? I hope someone
has a serial # close to mine as they may be the same run #. My serial #
is  63718. I would appreciate SX-42 owners checking. Thank you.

73, Ed Richards K6UUZ