[Hallicrafters] SX-117 disaster

[Richard Knoppow]

      I am not sure if there is a problem with both RX and TX. You 
probably burned out the antenna coil on the receiver, maybe just the 
primary. A physical inspection is necessary. If its burned it can be 
rewound or replaced if you can find a new one.  The former may be 
damaged. If so it must be replaced. Check the band switch and anything 
else close to the input.  This is not as rare as you might think, 
sometimes happens if a changeover relay fails. Your idea about acting 
like there is no antenna is a clue, check the wiring from antenna input 
connector to where ever it goes. I am not that familiar with this 
receiver but its quite possible some lead or a contact on the antenna 
section of the bandswitch took the brunt of the damage.

     The transmitter should be checked into a good dummy load.  Tuning 
into what amounts to an open circuit could have caused problems 
including damaging the tubes. A normal tuneup into a dummy load should 
tell you how much has happened, if anything.
     A very long time ago Al Capp, who invented Li'l Abner, also 
invented the Shmoo, which would become whatever you wanted.  We could 
get inflatable plastic shmoos with weighted bottoms. Perfect for kicking 
or punching. Don't know if they are still available.  Otherwise go to 
the gym and spend an hour on the heavy bag.  It will help.

On 7/31/2016 12:05 PM, Jeff wrote:
> Looking for some advice or consolation...
>
> Previously well working SX-117/HT-44 twins.  I hadn't run them in a long
> time, and many cables got messed with in the mean time. Unfortunately,
> in my haste to hook the pair back up again, I got the transmitter output
> fed into the receiver antenna input...  and then hit transmit to tune up
> the transmitter...
>
> It's taken me a while to stop cursing about it, but now my SX-117 is
> deaf as a post.  A quick check of the RF amp and 1st mixer show that the
> tubes are OK.  A signal generator on 14.250 is barely audible, but I can
> no longer get a good strong peak on the preselector.  I can get a bit
> more of a peak on 40 meters, but it's still quite deaf.  I had the rigs
> in 20 meters when the mishap occurred.
>
> It's just about acting like there's no antenna at all hooked to it.  I
> get no increase in noise whether or not it's hooked to the antenna or
> dummy load.
>
>
> I've had the courage to admit I've done something heroically stupid --
> so I'm reaching out to the list for any thoughts or guidance as to how
> to fix this.
>
>
> Jeff
>
>
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL