[Hallicrafters] Re: SX-71 Bandspread/MainTuning Knobs Question

[Julian Bunn]

Following up on my own question ... the S-40A has almost identical 
Bandspread and Tuning
knobs, with metal ring inserts. Are these the same knobs as in Run 1 SX-71s?


Julian Bunn wrote:

> I am puzzled why none of the three SX-71s in my possession have metal 
> ring inserts in the
> Bandspread and Main Tuning knobs, whereas the Hallicrafters manuals 
> and Sams Photofact
> folders for the SX-71 show the knobs complete with metal rings 
> attached to the inside perimeter
> of each knob.
>
> Were these metal rings poorly attached, and did they eventually fall 
> out and get lost?
> Or were the knobs with metal rings only attached to Run 1 units? (I 
> have seen a
> recent picture of a white face SX-71 that has the ring inserts.) What 
> are the
> metal rings made of, and how easy would it be to make a replacement ring?
>
> On a related topic: If anyone has SX-71 CW Pitch, Tone, Volume and 
> Sensitivity
> knobs for sale, please let me know, as I am looking for all four.
>
> Best wishes,
> Julian
>
>
>