[ARC5] [Milsurplus] [MMRCG] Aircraft Radio Corporation "Circle M" Sets - Photo

[Robert P. Meadows]

Have been reading the mail about the Circle M radios, and with the pics
provided by Gordon White, sort of understand what the mail has been about.  

Having never seen such, as in the years when an ARC 5 radio was a buck or
so, and was still due to my budget a careful purchase, such radios were
seldom available to a young kid.

Even tho there were lots of radios available for, by today's standards,
bargain prices.  Example complete TCS, in the crates, at the local junk yard
in Norfolk, Va for $25 bucks for the kid.

BUT, we all thought little of it, as there was little information available
on running the radios, but, there were the "Conversion Manuals" which
basically destroyed perfectly functional 

Radio sets.  To me the Circle M, would indicate model/master as in the
baseline accepted initial production unit.  In the manufacture of firearms,
back before CNC machining when each part was made on either dedicated
machines, or a set of same by machinists, there were GAGE BLOCK firearms,
that were utilized for quality control and measurement of production parts.

 

I note in the fine set of pics, the last one showing a BC186 set, the Mule
Pack radio.  I had two, let the ratty one go, as it was missing two of the
meters.  The one I have remaining is essentially NEW in its case, with some
wear to the outside of the case.  The only problem is I only have the radio,
not the spares box which contained the tubes, generator, antenna and etc.
Of course the key is missing from its mounting place on the radio cover/desk
top.  If anyone is interested in taking on the project to install tubes and
make an operational radio please advise.  I have too many other projects to 

Get to, with the latest, completed less final installation instructions for
replacing the "unobtanium" Oak Switch in the Collins KWM2 with a readily
available microswitch, in such manner that the modification is as easy to
reverse as to install.  The making of the parts for the Modification took a
bit of time, as well as the tooling to form the parts.

 

Cheers All

Robert

W4RRD

 

From: milsurplus-bounces at mailman.qth.net
<milsurplus-bounces at mailman.qth.net> On Behalf Of Al Klase
Sent: Monday, April 29, 2019 10:42 AM
To: MMRCG at groups.io; ARC-5 <arc5 at mailman.qth.net>;
milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] [MMRCG] Aircraft Radio Corporation "Circle M" Sets
- Photo

 

Dave, agreed.

Gordon Elliot White is the expert on this subject.  There's a picture here
<http://www.mrca.ar88.net/photo_gallery/2002_meet_pix/meet_pix.html> .
(Scroll down)

Al

On 4/29/2019 1:27 AM, David Stinson wrote:

Several people have asked about the "Circle M"
marking on the one-of-a-kind, unique 
Aircraft Radio Corporation "Morgue" sets,
which were the first of a model off the line
and kept as a production example.
They are unique and should be carefully preserved,
including some arraignment made for a new
care-taker
when the time comes.   Have attached a photo
of the marking, which can show-up on any piece 
produced by A.R.C., such as shock mounts, control
boxes, cabling etc.  If one of these is lost or
destroyed, there is no other of that piece.
It is lost forever.
 
GL OM ES 73 DE Dave AB5S
 
 
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
 
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