[HBR] Fwd: Eddystone Three Section Variable Capacitor Question

[Whitebear1122]

I was able to extract a complete screw from the old mounting bracket.  I remeasured with the caliper.  Screw diameter is 0.137" thread to thread.  Screw length is 0.475", looks like about 1 thread worth of shank before the thread starts, and using the magnifying glass I counted 16 turns.  That comes out around 32 or 33 turns. From the web that turns count and diameter lines up with the 6-40. I'm not sure if that's considered "Whitworth" or not.  
73, Scott WA9WFA

On Mar 14, 2014, at 5:48 PM, Walt Hutchens <waltah at earthlink.net> wrote:

> Whitebear1122 said:
> 
> 
>>> Almost embarrassed to ask this but what are the threads for the
>>> Eddystone three section variable cap that is typically used in the
>>> HBR receiver?
> 
> Why embarrassed? I'm pretty sure those are Whitworth threads and
> essentially unknown in the U.S.  See the Wikipedia article here:
> 
> https://en.wikipedia.org/wiki/British_Standard_Whitworth
> 
> Send me an address offline and I'll mail you four of what I think they
> are.
> 
> Walt Hutchens
> KJ4KV
> 
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