[Hallicrafters] SX-100 Notch Freq & Depth Knobs

[kiyoinc at attglobal.net]

k7mks wrote:

> Did Hallicrafters ever use a small knob, numbered 0 - 10 over 360 degrees, with 4 small division lines between each digit?  I have a SX-100 with these knobs for Notch freq  & depth and am trying to decide if they are factory original.
I'm pretty sure that Hali used non-standard knobs of various kinds. 

I have an SX-100 with matching but generic knobs on the notch freq and 
depth.    These knobs are not exactly what you describe as they have no 
numbers and they resemble the other knobs on the radio. 

By resemble, I mean that they have a center "bright", grooves, a skirt, 
and are black.

I have seen at least one SX-100 on eBay with the same matching generic 
knobs that are on mine.  I have also seen other owners asking about 
non-standard but matching knobs on the notch controls.

The discussions usual drift to a consensus that  "Hali never used knobs 
like that." 

I'm not so certain.   If fact, given the number of times that this 
question has come up, I'm almost certain that there must have been a run 
of dozens of SX-100's with knobs like this.

Let's call these, the extra-valuable, rare units with special notch knobs.

While on this subject of SX-100 mysteries.

My SX-100 has a removable, three wire, power cord.  In fact, it is 
interchangeable with the three wire cord used on the Heathkit SB-303. 

All the SX-100's that I've seen on eBay, that show the back, have 
hard-wired power cords. 

Anyone know what the story is here?

de ah6gi/4