[Milsurplus] ARC-2: Smart People Needed

[don davis]

Is there a single slug that goes through both coils or are there 2 separate
slugs?

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of David Stinson
Sent: Wednesday, April 02, 2014 8:43 AM
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] ARC-2: Smart People Needed


----- Original Message ----- 
From: "Ian Wilson" <ianmwilson73 at gmail.com>


> Are the IFT primaries and secondaries coupled by both magnetic 
> (proximity)
> coupling and capacitive coupling (the 5pF caps) or only by the 
> caps?

The schematic shows both windings in a single shield
but if you look at the coil rack itself, the primaries and
secondaries are completely shielded from one-another
in individual metal cans.  The only coupling, unless there
is some residual magnetic through the open ends of
the shield cans, is through the 5 pFd cap.
The later AN/ARC-2A manual shows
the correct shielding.   Maybe disconnect the 5 pFds
and see if there's enough residual coupling to
do the job?

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