[Hallicrafters] SX-117 info

[Roy Morgan]

On Feb 8, 2015, at 10:01 PM, Jeff <jeff at podengo.com> wrote:

> ...I just picked up a SX-117 with matching speaker.  ... it seems like the power transformer runs quite hot.

Did you replace or reform the filter caps?
If the caps are ok, then running the thing on lower line voltage will help a lot.
Also: if you really don’t need all the audio power it will deliver, increase the cathode resistor to reduce the plate current.

> Second, the tuning dial has a bit of a slip in it.  

Not familiar with this particular radio but does it use a dial string?  If so, dissolve some rosin (from the violin supply store, or the baseball department of the sports store) in  painters alcohol.  Apply a bit to the string where it goes over the driving shaft.

Roy

Roy Morgan
RoyMorgan at alum.mit.edu
K1LKY Since 1958