[ARC5] RCA AVA-120 AVA Fairlead

[David Stinson]

Couple of important things I forgot ( I do a lot of that ).
There are *three* screw holes 11mm (center hole) from the
small end of the device- How could I miss that third hole??
The holes are 90 degrees apart.
The one original screw I have is 9.5mm total length,
slotted, round head and the thread is 6-32.

Can't directly measure the bore size, because
there is an eyelet made at the end of the wire to
connect the "wind sock" drag thing.  I'd have to destroy it
to get the wire out.  Closest I can estimate is 2mm plus a little.

Looking inside the screw holes, the color of the threads is
the same as the outside finish, and the few worn and scratched
areas are uniform colour, so it's probably not plated brass.

On the back side of the large disk and along the shaft,
one can see very fine lathe cutting marks.
If it is plated, the finish is like Nickel.
I'm not the expert- I'd bow to Mike on that- but it looks
like Stainless Steel.  That would make sense, given the
moisture and crud to which the device would be subject
when the antenna was reeled-in on grey days.

GL OM ES 73 DE Dave AB5S

On 8/8/2020 12:29 PM, Michael Hanz wrote:
> It might be useful to have the bore diameter of the long sleeve as 
> well, just to be authentic.  The screw is a 10-24 thread?  Is the 
> material plated steel or plated brass?  It's hard to tell.
>
> Looks like a short job - radius form tool in the lathe (I just use one 
> flute of a corner rounding end mill in the lathe.)
>
> Have a happy Saturday,
>  - Mike  KC4TOS
>
> On 8/8/2020 12:06 PM, David Stinson wrote:
>>
>> For those working on an RCA AVA-120 antenna reel,
>> here's the original outlet fitting for the fairlead tube
>> with some measurements in mm.  I don't know how
>> to measure the curve that starts 3mm up from the
>> flat side of the inlet end and curves for the remaining
>> 3mm to the countersunk hole, but I bet
>> Mike Hanz knows.
>> Sorry the files are small and hard to read.
>> The list restricts photos to tiny files.
>>
>> GL OM DE Dave AB5S
>>
>


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