[Hallicrafters] knob retaining screws

[Todd, KA1KAQ]

On 10/4/07, rbethman <rbethman at comcast.net> wrote:
> Well, there I go - learning again!
>
> *I* have not run across the four spline knobs YET!

IIRC, the first one I found years ago was the tiny screw in a 75A-4
4:1 vernier knob. Drove me nuts for a while until I figured it out.

The smaller sizes just don't have the area to support 6 splines. But
the overall concept works great.

~ Todd,  KA1KAQ