[Hallicrafters] SX-117 disaster
Jeff
jeff at podengo.com
Tue Aug 2 20:58:55 EDT 2016
Thanks Jim -
For sure, I'm looking at one 50.75 KC IF Transformer. It is deformed
inside. Second, I opened up one of the 1650 kc transformers, and it
also shows burned windings on the top half of the transformer. The slug
also looked discolored.
So maybe that's all it is. Still disheartening, because all my voltages
and resistances looked correct.
My radio is an "E" revision. The small white coils that you mentioned
before are intact.
Jeff
On 8/2/2016 8:44 PM, Jim Liles wrote:
> Jeff,
>
> Richard is right, don't think it's as bad as it seems.
>
> The transmitter output will be but 60 volts or so --- probably not
> enough to breach a capacitor.
>
> Another thought. There 5 different ec levels. Would be good to know
> what your working with.
>
> Check K9AXN.com in the schematics section and match your radio. The
> most important changes occurred from the B to C level.
>
> The SX-117 is one of, is not the quietest radio ever produced and it
> has an MDS of -140db.
>
> Kindest regards Jim K9AXN
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