[Hallicrafters] SX-101 Question

[Larry]

On 6/14/2010 10:24 AM, Larry wrote:
> Over the weekend I picked up a very nice SX-101 MKIII with great
> cosmetics.  I am going to re-cap it over the next few weeks.  One thing
> that puzzles me is the "Pointer Reset" knob.  How does it work?  Does it
> mechanically move the pointer or does it do it electrically by shifting
> the local oscillator freq?  The reason I ask is that the shaft appears
> loose or disconnected over about a 45 degree rotation with hard stops on
> each end of the rotation.  What's involved on getting access to the
> mechanism?
>
> This is my first SX-101 and am looking forward to getting it up and going.
>
> Thanks,
> Larry W4LK
> ______________________________________________________________
>
>    
I took the front panel off and found that the Pointer Reset knob and 
shaft was connected to a pawl that pushed the entire pointer assembly 
left or right along a slide.  The slide is assembled with 2 loose 
fitting screws with nylon washers to allow it to slide easily.  Someone 
had really torqued those 2 screws down tighter than Dick's hatband.  It 
might have slid some if whacked with a sledge hammer!  I loosened up the 
two screws and it now works as advertised.

I brought the old girl up on a Variac and it began to make noise, but 
the 1st local oscillator was not working.  This is the tube that the 
filament stays on even when the power is switched off.  I had read that 
you need to be prepared to replace the tube every year or so.  It is a 
12BY7 (which are not cheap).  I put a new one in and it now plays pretty 
good.

When I recap a receiver, I usually buy the capacitors from Dave at DH 
Distributors in Witchita.  I can't raise him on his landline.  Is he 
still in business?

Thanks,
Larry W4LK