[ARC5] Cross between an ARC-5 and ARC-12?

[David Stinson]

----- Original Message ----- 
From: "Tom Bridgers" <Tarheel6 at msn.com>
To: <arc5 at mailman.qth.net>
Sent: Monday, April 02, 2007 11:19 PM
Subject: [ARC5] Cross between an ARC-5 and ARC-12?


> It's not an ARC-5, but it looks like one.  It's not an ARC-12, but it has
a
> tube line up like one.  This radio is kinda weird.  Least I've never seen
> one like it before:
> 280099285818
>
> Anybody know what it is?

This is an A.R.C. R-13 VHF receiver,
produced for both navigation and communication in
February of 1948.  Most went into the early type-15 sets.
It came in 12 and 24 volt flavors.  It is a commercial version of
the VHF R-112 and R-113 AN/ARC-5 sets produced late in the war,
with minor changes and a somewhat different tuning range
 of 108-135 MC.  I guess they had to find a market to pay
for all that research they did on the tunable ARC-5 VHF set ;-).
The R-13 receiver and accessories
appears in one of Gordon's CQ articles; I don't
remember which at the moment.  I also have a nice
photo of this set mounted as a nav set next to
an ARC-3 comm set in a post-war aircraft.

The ARC-type-12 VHF receivers are, in turn,
the direct descendents of this set,
the tuning dial and remote drawer dropped
as redundant  (most aircraft no longer carried a radio op,
so only the pilot need see the tuning dial)
and as a cost-saving measure.

I have examples of both the
12 and 24 volt versions of the R-13.
I have seen a couple of these sets before this one,
including one very nice one with dyno I can't get
the fellow to trade ;-),
so it's probably not "rare" by my definition,
but it's certainly "scarce."

73 DE Dave AB5S