[Collins] 75S-3B Slug Rack

[Dr. Gerald N. Johnson]

Look for bent uprights and slug wires. The knob shaft is part of a ball 
vernier, and there is an outer shaft for the pointer that also needs to 
be in front of the panel. I've never that mechanism apart.

73, Jerry, K0CQ, Technical Adviser to the Collins Radio Association.

On 1/19/2012 10:19 AM, Byron Tatum wrote:
> Hello-
>      I am preparing to repair a 75S-3B slug rack assembly. I thought I would ask,
> ahead of doing this work, if someone had the time to give me a little advice.
> Here is the problem: The shaft of Preselector evidently has been struck and
> driven into the assembly, the knob will not slide onto the shaft far enough to
> stay afixed. There is only about 1/4" of the shaft protruding past the plastic
> indicator piece that rides nearest front panel.
>      Years ago I believe I had apart one of the rack assemblies but at this
> time but cannot recall the parts / assembly. I hope the slug rack assembly is
> not permanently damaged.
>
> Sincerely, Byron WA5THJ
>