[Hallicrafters] HT-44/SX-117

[Langston, Mike]

I hope this may help someone else. I recently completed refurbishing and
aligning this pair. No significant problems until I went to connect them
to my coax switch (selects rig in use) and Dow-key relay. Sensitivity
was way down on the SX-117. It had worked fine on the bench with just a
piece of wire during alignment.

 

I'll make a long story short. I spent 2 hours checking all the cables,
coax switch, relay for shorts/opens and everything was fine. I don't
know what made me do it, but I grabbed a screwdriver and tightened one
screw on the SO-239 receptacle where it attaches to the chassis and that
did it. Needless to say, I then tightened the other 3. I felt like an
idiot. Tonight I plan on tightening the SO-239 attachment screws on all
my rigs. It's amazing how well it was insulated from the chassis by
oxidation. I routinely tighten hardware where it attaches to the chassis
but overlooked that receptacle (on every rig I've worked on).

 

73,

Mike KL7CD