[Hallicrafters] My First Boat Anchor Restoration: SX101 MkIII

[Ross Stenberg]

Could be the LO is not on due to a resistive heating device (I forget 
what they are called) being open. I had it happen to me once and 
replaced it with a resistor and it came back to life.

On 11/14/2011 10:20 AM, Jason Hissong wrote:
> Hi guys,
>
> I am new to using and hopefully restoring old radios.  I have grown
> particularly fond of Hallicrafters gear since I got my HT37 at Dayton
> a few years back.  Well, I picked up an SX101 Mk III at Dayton this
> past year.
>
> When I opened it up, it appears that someone already went in and
> replaced the caps with Olsen type "TV" Capacitors.  It also appears a
> few caps were added to the capacitor can in the power supply.  I was
> told by local hams to replace the Olsen caps so I plan to do this.
>
> The unit is in great cosmetic condition.  When I fire it up, there is
> no hum whatsoever.  All the features appear to work, selectivity,
> volume, notch, mode switch, audio etc.  However, I hear barely
> anything coming out of the receiver with the RF gain all the way up.
> I went in a cleaned up the band switch contacts and that improved
> things somewhat.  I can hear signals, however, the frequency does not
> change when I turn the VFO knob. The volume changes (i.e, the receiver
> appears to get less sensitive as I move away from a particular
> frequency).  This only happens when the Calibrator is engaged (which I
> picked up after I got the radio).  With the calibrator off, I hear
> nothing.
>
> I went ahead and ordered a cap replacement kit for it from Hayseed.  I
> am hoping there are some bad caps in there.
>
> Any tips or a general idea what may be going wrong would be
> appreciated.  This will be my first boat anchor project.  I do have
> experience building kits (I have build a few K2s, KX1, etc)
>
> Thanks es 73,
> Jason N8XE
>