[Collins] RE: Broken 10M coil core on 310B

[Bob Spooner]

> What are the dimensions, threads, and color codes of that slug? I've
> found to my sorrow, that using a metal hex wrench is nearly always
> disastrous, splitting the hollow slug nearly every time. Plastic isn't
> as strong and saves the slug most of the time.
> 
> Sounds like it should be painted red if the standard color code.
> Interesting that in the 310B manual I downloaded, there is a note at the
> end of the parts list among others that says "replace broken slug in
> L105." That's the last multiplier 10m coil. Unfortunately the parts list
> doesn't show any details on that coil and slug.
> 
> --
> 73, Jerry, K0CQ, Technical Advisor to the CRA
> All content copyright Dr. Gerald N. Johnson, electrical engineer
> 
Jerry,

The slug is 1/4" in diameter and 1" long with a 3/4" #4 threaded rod on the
end which has a screwdriver slot for adjustment from above the chassis.
There is no color code, just the natural powdered iron grey color. The one
that broke in my 310B is for L102, the second multiplier stage 10M position.
73, Bob AD3K