[Milsurplus] COL-52286 (AKA ATC, ART-13, etc.)

[WA5CAB at cs.com]

Bob,

COL-52286 became T-47/ART-13 mainly by changing the nameplate.  At the same 
time or about the same time, the shock mount was changed from the twin rail to 
the upper and lower sheet metal version.  Around the time of the change, the 
mechanical coupling in the antenna select vacuum switch actuator was changed.  
And all of the T-47's I've had have the later version CFI (as do most 
52286's).  Otherwise the T-47 documentation works for the 52286.

If the generic manual that you have is for the AN/ART-13A, or AN/ART-13A and 
AN/ART-13B, the T-47A has some differences that could cause confusion.  The 
manual you want to use (assuming you don't have the final ATC one) will say both 
ATC and AN/ART-13.  It may also say AN/ART-13A depending upon revision date.

The other possible confusion point is the LF oscillator.  If your transmitter 
has the blanking unit, no problem.  If it has one that either has no 
nomenclature or says on the side O-16/ART-13 you're OK.  If it says O-17/ART-13A, it's 
a different unit and may not match the manual that matches the transmitter.  
I mention this because either one will work in all the transmitters except 
T-412/ART-13B and the O-17 were far more plentiful and someone in the past may 
have been hoping to get on 160 and bought and installed one of the O-17's.

In a message dated 3/15/2009 9:22:00 AM Central Standard Time, 
kn4hhptc at yahoo.com writes: 
> Good day, all.  I have a Navy version of the ART-13.  It is a COL-52286 S/N 
> 1952A.  Before I begin to restore it, I want to make sure there is no major 
> diference in circuitry and operation between this model and others.  I have 
> what I will call the generic ART-13 manual from BAMA.  Should this manual be 
> close enough to use for component identification and basic operation?

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480